A screw hole cleaning device

Abstract

The utility model discloses a screw hole cleaning device, including the circular table, the circular table is opened with the corresponding gas hole of workpiece screw hole, the lower surface of circular table installs the gas nozzle in the corresponding gas hole position, and the gas nozzle upwardly blows gas to the gas hole, and the circular table still is opened to have the mounting hole, and the proximity switch is installed in the mounting hole, and the proximity switch electric connection controller, and the controller electric connection electromagnetic air valve, and the gas nozzle is connected with the gas pipe, and is connected the gas outlet end of electromagnetic air valve through the gas pipe. In the utility model, the gas nozzle blows gas to the gas hole according to the induction of proximity switch, to remove the iron filings and oil stains in the screw hole, compared with the existing adoption air gun removes the iron filings and oil stains in the screw hole, and the steps of taking air gun and operating air gun are saved, and the effect of automatically removing iron filings and oil stains is realized, through setting up multiple gas holes and being equipped with multiple gas nozzles, can simultaneously carry out the iron filings and oil stains operation of multiple screw holes on the workpiece, improve the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and more specifically, to a screw hole cleaning device. Background Technology

[0002] Rust-preventive oil is used during the tapping process to prevent rusting, reduce friction, and extend tap life. However, metal chips generated during tapping cannot be completely removed, leaving some residue in the threaded holes. The current solution is to manually remove metal chips and oil from the threaded holes using an air gun after machining. The problem with this is that when a workpiece has multiple threaded holes, the operator must remove the chips and oil from each hole individually, resulting in low efficiency.

[0003] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a screw hole cleaning device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A screw hole cleaning device includes a frustum, on which an air outlet corresponding to the screw hole of a workpiece is formed. An air nozzle is installed on the lower surface of the frustum corresponding to the position of the air outlet, and the air nozzle blows air upward toward the air outlet. The frustum also has a mounting hole, in which a proximity switch is installed. The proximity switch is electrically connected to a controller, and the controller is electrically connected to a solenoid valve. The air nozzle is connected to an air outlet pipe, and the air outlet pipe is connected to the air outlet end of the solenoid valve.

[0007] Furthermore, a positioning key for positioning the workpiece is installed on the upper surface of the frustum, and the positioning key is adapted to the arc groove on the lower surface of the workpiece.

[0008] Furthermore, the outlet end of the electromagnetic valve is connected to a connector via an outlet pipe. The connector includes an inlet port and multiple outlet ports connected to the inlet port. The multiple outlet ports are respectively connected to multiple air nozzles via outlet pipes.

[0009] Furthermore, the controller includes a switching power supply, the input terminal of which is connected to a circuit breaker, and the output terminal of which is connected to a relay and a proximity switch, the relay being electrically connected to a solenoid valve.

[0010] Furthermore, a groove is provided at the center of the upper surface of the cylindrical platform, and the groove is adapted to the outward protrusion at the center of the lower surface of the workpiece.

[0011] The beneficial effects of this utility model are:

[0012] 1. In this utility model, the air nozzle blows air toward the air outlet according to the proximity switch to remove iron filings and oil stains in the screw hole. Compared with the existing method of using an air gun to remove iron filings and oil stains in the screw hole, this method eliminates the steps of picking up and operating the air gun, and achieves the effect of automatically removing iron filings and oil stains.

[0013] 2. In this utility model, by setting multiple air outlets and equipping multiple air nozzles, iron filings and oil stains can be removed from multiple screw holes on the workpiece simultaneously, thereby improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the screw hole cleaning device in this embodiment;

[0015] Figure 2 This is a top view of one of the structures of the frustum in this embodiment;

[0016] Figure 3 This is a cross-sectional view of a frustum in this embodiment;

[0017] Figure 4 This is a top view of the workpiece in this embodiment;

[0018] Figure 5 This is a bottom view of the workpiece in this embodiment.

[0019] Figure 6 for Figure 5 Sectional view along line AA;

[0020] Figure 7 for Figure 5 A sectional view along line BB.

[0021] Reference numerals: 1. Frustum; 2. Air outlet; 3. Air nozzle; 4. Mounting hole; 5. Proximity switch; 6. Controller; 601. Switching power supply; 602. Circuit breaker; 603. Relay; 7. Solenoid valve; 8. Air outlet pipe; 9. Positioning key; 10. Connecting joint; 11. Groove; 12. Workpiece; 1201. Screw hole; 1202. Arc groove; 1203. Protrusion. Detailed Implementation

[0022] 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.

[0023] Example: A screw hole cleaning device, such as Figures 1-7As shown, the device includes a frustum 1, on which an air outlet 2 is provided corresponding to the screw hole 1201 of the workpiece 12. An air nozzle 3 is installed on the lower surface of the frustum 1 corresponding to the position of the air outlet 2. The air nozzle 3 blows air upward toward the air outlet 2. An installation hole 4 is provided on the frustum 1. A proximity switch 5 is installed in the installation hole 4. The proximity switch 5 is electrically connected to a controller 6. The controller 6 is electrically connected to a solenoid valve 7. The air nozzle 3 is connected to an air outlet pipe 8 and is connected to the air outlet end of the solenoid valve 7 through the air outlet pipe 8.

[0024] In use, first align the screw hole 1201 on the workpiece 12 with the air outlet 2 on the frustum 1, and then place the workpiece 12 on the upper surface of the frustum 1. After the proximity switch 5 senses the workpiece 12, it sends a signal to the controller 6. The controller 6 outputs voltage to the solenoid valve 7, which is then energized and opened. At the same time, high-pressure gas (air) is introduced into the air inlet of the solenoid valve 7. The gas flows through the air outlet pipe 8 to the air nozzle 3, which blows air upwards toward the air outlet 2 to remove iron filings and oil stains from the screw hole 1201. Compared to the existing method of using an air gun to remove iron filings and oil stains from the screw hole 1201, this method eliminates the steps of picking up and operating the air gun, achieving automatic removal of iron filings and oil stains.

[0025] The air nozzle 3 is a commercially available product. Any air nozzle 3 compatible with this screw hole cleaning device can be purchased. Its installation and usage methods are publicly available in this field, and the technology is relatively mature. Therefore, no optimization or innovation is necessary, and it will not be described in detail, nor will it be protected. The solenoid valve 7 is also a commercially available product. Any solenoid valve 7 compatible with this screw hole cleaning device can be purchased. Its installation and usage methods are publicly available in this field, and the technology is relatively mature. Therefore, no optimization or innovation is necessary, and it will not be described in detail, nor will it be protected.

[0026] Meanwhile, it is a common practice in the prior art to electrically connect the controller 6 to the proximity switch 5 and the solenoid valve 7 respectively. When the proximity switch 5 does not detect the workpiece 12, its output state is off, that is, no signal output or output low level to the controller 6. The input port of the controller 6 detects that the proximity switch 5 is off and outputs low level to the solenoid valve 7. The coil of the solenoid valve 7 is not energized, and the solenoid valve 7 is in the closed state, with the air inlet and outlet cut off. When the proximity switch 5 detects the workpiece 12, the proximity switch 5 outputs high level to the controller 6. The input port of the controller 6 detects the level changing from low to high (or from zero to one) and outputs high level to the solenoid valve 7. The coil of the solenoid valve 7 is energized, and the solenoid valve 7 is in the open state, with the air inlet and outlet connected.

[0027] Preferably, the sensing range of the proximity switch 5 can be adjusted by adjusting the position of the sensing end of the proximity switch 5 in the mounting hole 4, such that the proximity switch 5 detects the workpiece 12 as soon as it is placed on the upper surface of the frustum 1.

[0028] Preferably, a suction hood can be installed above the frustum 1. A negative pressure is created inside the suction hood by using a fan to draw air out the metal filings and oil, which are then discharged into the waste box. By installing the suction hood, the blown-out metal filings and oil can be transferred, preventing them from falling back onto the workpiece 12 and polluting the environment.

[0029] Furthermore, a groove 11 is provided at the center of the upper surface of the frustum 1, and the groove 11 is adapted to the outward protrusion 1203 at the center of the lower surface of the workpiece 12. By providing the groove 11, the position of the workpiece 12 on the frustum 1 is limited.

[0030] Furthermore, a positioning key 9 for positioning the workpiece 12 is installed on the upper surface of the frustum 1. The positioning key 9 is adapted to the arc groove 1202 on the lower surface of the workpiece 12. By setting the positioning key 9, it is convenient to align the screw hole 1201 on the workpiece 12 with the air outlet 2 on the frustum 1. Compared with the visual alignment method, this reduces the steps of repeatedly adjusting the rotation of the workpiece 12.

[0031] Furthermore, the air outlet of the solenoid valve 7 is connected to a connector 10 via an air outlet pipe 8. The connector 10 is a one-in-multiple-outlet connector, comprising one air inlet and multiple air outlets connected to the air inlet. Each air outlet is connected to a nozzle 3 via an air outlet pipe 8, meaning each air outlet is connected to an air outlet pipe 8 and a nozzle 3, with one air outlet corresponding to one nozzle 3. By setting up the connector 10, multiple air outlets are achieved, thereby enabling simultaneous removal of iron filings and oil stains from multiple screw holes 1201, improving work efficiency.

[0032] Furthermore, such as Figure 1As shown, the controller 6 includes a switching power supply 601. The input terminal of the switching power supply 601 is connected to a circuit breaker 602, and the output terminal of the switching power supply 601 is connected to a relay 603 and a proximity switch 5. The relay 603 is electrically connected to a solenoid valve 7. The input terminal of the circuit breaker 602 is connected to mains power, and the output terminal of the circuit breaker 602 is connected to the input terminal of the switching power supply 601 via a wire. The switching power supply 601 is a DC 24V-25W switching power supply. The output terminal of the switching power supply 601 is electrically connected to the relay 603 and the proximity switch 5 via wires. The relay 603 is a DC 24V relay, and the relay 603 is electrically connected to the solenoid valve 7 via a wire. The proximity switch 5 is an M12 NPN normally open DC three-wire proximity switch and is rated for DC 24V. The solenoid valve 7 is a 2V025-08, DC 24V-4.8W solenoid valve. When proximity switch 5 detects workpiece 12, proximity switch 5 outputs a high level to relay 603, relay 603 is activated, energizing the coil of solenoid valve 7, thereby opening solenoid valve 7.

[0033] In this embodiment, as Figures 4-7 As shown, the workpiece 12 has a disc-shaped structure, with four screw holes 1201 on it. The center of the lower surface of the workpiece 12 protrudes outward to form a protrusion 1203, and an arc groove 1202 is provided at the edge of the lower surface of the workpiece 12; correspondingly, as... Figures 1-3 As shown, the truncated cone 1 has four air outlets 2, and each air outlet 2 is equipped with an air nozzle 3. The four air nozzles 3 are connected to the connecting joint 10 through the air outlet pipe 8. The connecting joint 10 is a one-in-four-out structure, that is, it has one air inlet and four air outlets. Each air outlet is connected to an air nozzle 3 through the air outlet pipe 8. The air inlet is connected to the air outlet of the solenoid valve 7 through the air outlet pipe 8. With the above structural design, the four screw holes 1201 can be removed from iron filings and oil stains at the same time, improving work efficiency. The upper surface of the truncated cone 1 is equipped with a positioning key 9 that matches the arc groove 1202 on the lower surface of the workpiece 12. The truncated cone 1 is also equipped with a mounting hole 4, in which a proximity switch 5 is installed.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A screw hole cleaning device, comprising a frustum (1), characterized in that, The truncated cone (1) has an air outlet (2) corresponding to the screw hole (1201) of the workpiece (12). An air nozzle (3) is installed on the lower surface of the truncated cone (1) corresponding to the position of the air outlet (2). The air nozzle (3) blows air upward toward the air outlet (2). The truncated cone (1) also has an installation hole (4). A proximity switch (5) is installed in the installation hole (4). The proximity switch (5) is electrically connected to a controller (6). The controller (6) is electrically connected to a solenoid valve (7). The air nozzle (3) is connected to an air outlet pipe (8) and is connected to the air outlet end of the solenoid valve (7) through the air outlet pipe (8).

2. The screw hole cleaning device according to claim 1, characterized in that, The upper surface of the frustum (1) is equipped with a positioning key (9) for positioning the workpiece (12), and the positioning key (9) is adapted to the arc groove (1202) on the lower surface of the workpiece (12).

3. The screw hole cleaning device according to claim 1, characterized in that, The outlet end of the electromagnetic valve (7) is connected to a connector (10) via an outlet pipe (8). The connector (10) includes an inlet port and multiple outlet ports connected to the inlet port. The multiple outlet ports are respectively connected to multiple nozzles (3) via the outlet pipe (8).

4. The screw hole cleaning device according to claim 1, characterized in that, The controller (6) includes a switching power supply (601), the input terminal of which is connected to a circuit breaker (602), and the output terminal of which is connected to a relay (603) and a proximity switch (5). The relay (603) is electrically connected to a solenoid valve (7).

5. A screw hole cleaning device according to claim 1, characterized in that, A groove (11) is provided at the center of the upper surface of the frustum (1), and the groove (11) is adapted to the protrusion (1203) that bulges outward at the center of the lower surface of the workpiece (12).

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