Trachea assembly positioning tool, trachea assembly system, and trachea assembly control method

Abstract

The application provides a trachea assembly positioning tool, a trachea assembly system and a trachea assembly control method, wherein the trachea assembly positioning tool comprises a tube pressing device, a positioning end for mounting a trachea, a movable clamping ring arranged on the periphery of the positioning end and capable of moving back and forth along the axial direction of the positioning end, and a displacement sensor arranged on the tube pressing device and used for detecting the moving distance of the movable clamping ring towards the inner side of the positioning end; when the protruding sleeve of the target shell is connected to the side of the movable clamping ring towards the outer side of the positioning end, the tube pressing device presses the trachea into the mounting hole of the target shell through the protruding sleeve towards the outer side of the positioning end until the moving distance detected by the displacement sensor reaches a set value. The trachea assembly positioning tool can control the height difference between the end of the trachea and the end of the protruding sleeve when the trachea is positioned and assembled in the mounting hole of the target shell. The flow switch measures the gas flow of the air hammer, and whether the flow signal is a disturbance signal is judged according to whether the duration of the flow sudden drop signal reaches a threshold value, so that the shell is prevented from being mistakenly put into operation.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a tubing assembly positioning fixture, a tubing assembly system, and a tubing assembly control method. Background Technology

[0002] Currently, the assembly process for the suction pipe of the compressor pump body is usually as follows: 1. The housing moves in one direction on the assembly line. When it reaches the stopper, the stopper blocks the housing and completes the positioning; 2. The suction pipe is pre-installed on the positioning fixture manually; 3. The suction pipe is pressed into the pump body inside the housing by a pneumatic hammer. High-pressure gas is introduced into the pneumatic hammer to complete the knocking action; 4. After the suction pipe is in place, the pneumatic hammer is removed manually; 5. The switch is turned on manually, the stopper is allowed to pass through the housing, and then the next cycle begins.

[0003] For compressors, the product structure requires that there be a certain height difference between the suction pipe and the housing pipe opening after assembly, that is, the suction pipe needs to be higher than the housing pipe opening by A. However, the traditional assembly process relies on the operator's experience to set this height difference, so its assembly accuracy is limited and it is impossible to achieve precise control of the height difference A value. In addition, the traditional suction pipe assembly process of compressor pump body adopts more manual control, which makes the operation complicated and affects production efficiency. Summary of the Invention

[0004] This invention proposes a positioning fixture for air pipe assembly, an air pipe assembly system, and an air pipe assembly control method to solve the technical problem in the prior art that it is difficult to ensure the accuracy of the height difference between the air pipe and the shell opening during the assembly of the air pipe of the compressor pump body.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] This invention provides a tracheal tube assembly and positioning fixture, comprising:

[0007] A tube clamping device includes a positioning end for installing an air tube and a movable retaining ring located around the positioning end that can move back and forth along the axial direction of the positioning end.

[0008] A displacement sensor, mounted on the pressure tube device, is used to detect the distance the movable retaining ring moves toward the inside of the positioning end;

[0009] When the protruding sleeve of the target housing is connected to the side of the movable retaining ring facing the outside of the positioning end, the pressing device presses the air tube through the protruding sleeve into the mounting hole of the target housing towards the outside of the positioning end until the movement distance detected by the displacement sensor reaches the set value.

[0010] Furthermore, the crimping device also includes:

[0011] The main body of the device is used to provide the power for pressing the pipe;

[0012] The tooling body includes a connecting end, which is fixedly connected to the device body, and a limiting protrusion is provided on the periphery of the connecting end; and a positioning end, which is connected to the connecting end, and the radial dimension of the positioning end is smaller than that of the connecting end. The outer side of the pressing device facing the positioning end is a positioning step formed at the junction of the positioning end and the connecting end, which is used to position the end of the air tube when the air tube is sleeved on the positioning end.

[0013] The movable retaining ring is sleeved on the connecting end. The movable retaining ring includes a limiting part, which is located at the end of the movable retaining ring that faces away from the main body of the device. The side of the movable retaining ring facing the outside of the positioning end is the side of the limiting part that faces away from the main body of the device.

[0014] And an elastic element, connected between the device body and the movable retaining ring, so that the movable retaining ring abuts against the limiting protrusion and the limiting part moves away from the device body and crosses the positioning step.

[0015] A displacement sensor is installed on the main body of the device to detect the distance the movable retaining ring moves toward the compression elastic element of the main body of the device;

[0016] When the protruding sleeve of the target housing is connected to the side of the limiting part facing away from the main body of the device, the main body of the device drives the positioning step to press the air tube through the protruding sleeve into the mounting hole.

[0017] Preferably, the limiting part is a limiting cylinder, and the side of the limiting part facing away from the main body of the device is the end face of the limiting cylinder facing away from the main body of the device. The limiting cylinder wraps the limiting protrusion ring inside the limiting cylinder.

[0018] Preferably, the limiting protrusion is a limiting protrusion ring.

[0019] Preferably, the limiting protrusion is located at the end of the connection end away from the main body of the device.

[0020] Preferably, both the connecting end and the positioning end are cylindrical, and the connecting end and the positioning end are coaxially connected.

[0021] Preferably, the axial middle circumferential side of the positioning end is provided with a transition step that matches the inner shape of the trachea.

[0022] Preferably, the positioning end is provided with a relief hole that passes through the positioning end along its axial direction, and the connecting end is provided with a screw through hole that passes through the connecting end along its axial direction and communicates with the relief hole and is coaxially arranged with the relief hole. One end of the connecting end is detachably fixed to the device body by a connecting screw passing through the relief hole, the screw through hole and the corresponding fixing hole of the device body.

[0023] Preferably, the elastic element is a spring sleeved on the connecting end, with the two ends of the spring respectively abutting against the main body of the device and the movable retaining ring.

[0024] Preferably, the displacement sensor is a magnetic induction switch, and the movable retaining ring is made of ferromagnetic material.

[0025] The present invention also provides a trachea assembly system, including a conveying device and a central control device. The trachea assembly system further includes the aforementioned trachea assembly positioning fixture. The conveying device is used to position and convey multiple target housings at intervals to the assembly position on one side of the pressing device, so that the pressing device can press the trachea pre-fitted to the positioning end from the protruding sleeve of the target housing positioned at the assembly position into the corresponding mounting hole. The central control device is used to control the conveying device and the pressing device.

[0026] Furthermore, the conveying device also includes a material blocking mechanism connected to the central control device via a release switch, used to block and position the target housing at the assembly position;

[0027] The main body of the pipe-pressing device is an air hammer;

[0028] The endotracheal assembly system also includes:

[0029] The high-pressure gas tank is connected to the internal air passage of the air hammer through a delivery pipe and is used to provide a high-pressure gas source to the air hammer.

[0030] A flow switch, located in the delivery pipe, is used to detect the flow rate of high-pressure gas passing through the delivery pipe;

[0031] The ventilation switch, located on the pneumatic hammer, is used to open and close the internal air passage.

[0032] Preferably, the target housing is a compressor housing, the mounting hole is the air inlet of the pump body inside the compressor housing, and the air pipe is an air intake pipe that matches the air inlet.

[0033] The present invention also provides a tracheotomy control method, which applies the above-mentioned tracheotomy system and includes:

[0034] S1: The conveying device transports multiple target housings at intervals to the assembly position on one side of the pressing device. When the release switch is closed, the blocking mechanism blocks and positions the target housings at the assembly position.

[0035] S2: Pre-fit the air tube onto the positioning end of the crimping device, and the crimping device will pre-press the air tube from the protruding sleeve of the target housing into the corresponding mounting hole of the target housing;

[0036] S3: The ventilation switch opens the internal air passage of the air hammer, allowing high-pressure gas to enter the air hammer and drive it to continuously press the air pipe pre-fitted to the positioning end into the mounting hole.

[0037] S4: When the displacement sensor detects that the moving distance of the movable retaining ring toward the inside of the positioning end has reached the set value, the vent switch closes the internal air passage, and the target housing completes the air tube positioning assembly.

[0038] S5: After the flow switch senses the signal of a sudden drop in high-pressure gas flow, the release switch is opened, the material blocking mechanism releases the target housing from the assembly position, and the conveying device transports the target housing with the gas pipe positioning assembly completed to the unloading position.

[0039] Preferably, in step S5, after detecting a sudden drop in high-pressure gas flow, the flow switch determines the duration T of the high-pressure gas flow reduction signal. If the duration T is greater than a preset threshold, the release switch is opened; if the duration is less than or equal to the preset threshold, the release switch remains closed.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The trachea assembly positioning fixture, trachea assembly system, and trachea assembly control method provided by this invention can accurately control the height difference between the trachea end and the protruding sleeve end corresponding to the mounting hole when the trachea is positioned and assembled in the target housing. A flow switch is used to measure the flow rate of the high-pressure gas introduced by the air hammer, and the duration of the detected flow drop signal is used to determine whether the air hammer has finished its work or is an interference signal (fluctuation signal) during air hammer operation, thus avoiding misjudgment of interference signals and incorrect release of the target housing. Simultaneously, the trachea assembly process is highly automated and simple to operate, significantly improving compressor production efficiency. Attached Figure Description

[0042] To more clearly illustrate the technical solution proposed by the present invention, a detailed description is provided below in conjunction with the embodiments and accompanying drawings. It should be understood that the accompanying drawings described below are merely some embodiments of the present invention, and those skilled in the art can make changes to these drawings under the concept of the present invention.

[0043] Figure 1 A schematic diagram with a displacement sensor of an embodiment of the tracheal assembly positioning fixture provided by the present invention;

[0044] Figure 2 A schematic diagram of an embodiment of the tracheal assembly positioning fixture provided by the present invention without a displacement sensor;

[0045] Figure 3 for Figure 2 A longitudinal section diagram of the tracheal tube assembly and positioning fixture.

[0046] Figure 4 for Figure 3 A longitudinal section diagram of the main body of the tracheal assembly and positioning fixture.

[0047] Figure 5 for Figure 3 A longitudinal section diagram of the movable retaining ring of the tracheal assembly positioning fixture.

[0048] Figure 6 A top view of the assembly structure of the tracheal assembly system provided by the present invention;

[0049] Figure 7 The main view of the assembly structure of the tracheal assembly system provided by the present invention. Figure 1 ;

[0050] Figure 8 The main view of the assembly structure of the tracheal assembly system provided by the present invention. Figure 2 ;

[0051] Figure 9 for Figure 8 A partially enlarged structural diagram of the tracheal assembly system in the image;

[0052] Figure 10 The main view of the assembly structure of the tracheal assembly system provided by the present invention. Figure 3 ;

[0053] Figure 11 A schematic diagram of the control flow of the tracheal assembly control method provided by the present invention;

[0054] Figure 12 A schematic diagram of signal interference for the tracheal assembly control method provided by the present invention;

[0055] Figure 13 The signal filtering flowchart of the tracheal assembly control method provided by the present invention.

[0056] The main markings in the attached figures are as follows:

[0057] 1. Tooling body; 11. Positioning end; 111. Transition step; 112. Clearance hole; 12. Connecting end; 121. Limiting protrusion; 122. Positioning step; 123. Screw hole; 2. Device body; 21. Displacement sensor; 22. Air switch; 3. Movable retaining ring; 31. Limiting part; 4. Elastic element; 5. Connecting screw; 6. Conveying device; 61. Material blocking mechanism; 611. Release switch; 7. High-pressure gas tank; 71. Conveying pipe; 711. Flow switch; 712. Solenoid valve; 8. Target housing; 81. Pump body; 811. Mounting hole; 82. Protruding sleeve; 9. Central control device; 10. Air pipe. Detailed Implementation

[0058] To make the technical problem to be solved, the technical solution and the beneficial effects of the present invention clearer, the following description is provided in conjunction with the appendix. Figure 1-13 The present invention will be further described in detail with reference to embodiments.

[0059] Please refer to the following: Figure 1-5 The tracheal assembly and positioning fixture provided by the present invention includes:

[0060] The tube clamping device includes a positioning end 11 for installing the air tube 10, and a movable retaining ring 3 located around the positioning end 11 that can move back and forth along the axial direction of the positioning end 11.

[0061] Displacement sensor 21, mounted on the pressure tube device, is used to detect the movement distance of the movable retaining ring 3 toward the inside of the positioning end 11;

[0062] When the protruding sleeve 82 of the target housing 8 is connected to the side of the movable retaining ring 3 facing the outside of the positioning end 11, under the pressure of the tube pressing device, the tube pressing device presses the air tube 10 through the protruding sleeve 82 into the mounting hole 811 of the target housing 8 towards the outside of the positioning end 11 until the movement distance detected by the displacement sensor 21 reaches the set value.

[0063] In this embodiment, the crimping device further includes:

[0064] The main body 2 of the device is used to provide the pressure power for the air tube 10;

[0065] The tooling body 1 includes a connecting end 12, one axial end of which is fixedly connected to the device body 2, and a limiting protrusion 121 is provided on the outer side of the connecting end 12; and a positioning end 11, one axial end of which is fixedly connected to the other axial end of the connecting end 12, and the radial dimension of the positioning end 11 is smaller than that of the connecting end 12. The outer surface of the positioning end 11 is used to fit the inner surface of the air tube 10, and a positioning step 122 is formed at the junction of the axial end of the positioning end 11 and the other axial end of the connecting end 12 for positioning the end of the air tube 10 when fitting the air tube 10. The outer side of the aforementioned tube pressing device facing the positioning end 11 is the positioning step 122.

[0066] The aforementioned movable retaining ring 3 is sleeved on the connecting end 12 and can slide back and forth along the axial direction of the connecting end 12 relative to the circumferential outer surface of the connecting end 12. The movable retaining ring 3 includes a limiting part 31, which is located at one end of the movable retaining ring 3 facing away from the device body 2. The side of the movable retaining ring 3 facing outward from the positioning end 11 is the side of the limiting part 31 facing away from the device body 2.

[0067] And the elastic element 4 is connected between the device body 2 and the movable retaining ring 3, so that the movable retaining ring 3 abuts against the limiting protrusion 121 and the limiting part 31 moves away from the side of the device body 2 (along the axial direction of the positioning end 11) and passes over the limiting protrusion 121 and the positioning step 122.

[0068] The displacement sensor 21 is mounted on the main body 2 of the device and is used to detect the movement distance of the movable retaining ring 3 (along the axial direction of the connecting end 12) toward (closer to) the compression elastic member 4 of the main body 2 of the device.

[0069] When the pressure device applies force through the main body 2 to press the air tube 10, which is pre-fitted to the positioning end 11, from the protruding sleeve 82 of the target housing 8 into the corresponding mounting hole 811 of the target housing 8, so that the end of the protruding sleeve 82 is connected to (aggregated against) the limiting part 31 of the movable retaining ring 3 facing away from the side of the main body 2 (the limiting cylinder faces away from the end face of the main body 2), the main body 2 applies power pressure, driving the positioning step 122 (facing the outside of the positioning end 11) to press the air tube through the protruding sleeve into the mounting hole. At the same time, under the blocking effect of the end of the protruding sleeve 82 on the limiting part 31, the movable retaining ring 3 (along the axial direction of the connecting end 12) moves towards (closer to) the compression elastic member 4 of the main body 2 until the displacement sensor 21 detects that the above-mentioned movement distance of the movable retaining ring 3 compressing the elastic member 4 reaches the set value, the air tube 10 can be positioned and assembled in the mounting hole 811 with a height difference of a predetermined value relative to the protruding sleeve 82.

[0070] In this embodiment, the limiting part 31 is a limiting cylinder. The side of the limiting part 31 facing away from the main body 2 is the end face (end) of the limiting cylinder facing away from the main body 2. Under the action of the elastic member 4 (parallel to the axial direction of the main body 2), the end face of the limiting cylinder facing away from the main body 2 passes over the limiting protrusion 121 in a direction away from the main body 2, and the limiting cylinder (limiting part 31) wraps the limiting protrusion 121 inside the limiting cylinder.

[0071] In this embodiment, the limiting protrusion 121 is a limiting protrusion ring.

[0072] In this embodiment, the inner wall of the limiting cylinder abuts against the outer wall of the limiting protrusion (limiting protrusion 121) to make the movable retaining ring 3 and the limiting protrusion (limiting protrusion 121) more stable when they make axial reciprocating sliding movements.

[0073] In this embodiment, both the connecting end 12 and the positioning end 11 are cylindrical, and they are coaxially connected. As a preferred embodiment, the main body 2 of the device is coaxially arranged with the connecting end 12 and the positioning end 11, that is, the axial direction of the main body 2 of the device and the connecting end 12 and the positioning end 11 is the axial direction of the pressure tube device.

[0074] In other embodiments, the connecting end 12 and the positioning end 11 may also be polygonal prisms, in which case the shape of the elastic element 4 (spring) adapted to the pipe pressing device and the air pipe 10 adapted to the tooling body 1 are correspondingly matched and changed.

[0075] In this embodiment, the limiting protrusion (limiting protrusion 121) is provided at the other end of the connecting end 12 away from the device body 2 (i.e. near the positioning end 11) in the axial direction, so that when the length of the limiting part 31 (limiting cylinder) in the axial direction of the pressing device is relatively short, it can still ensure that the side of the limiting part 31 facing away from the device body 2 (the end face of the limiting cylinder facing away from the device body 2) continues to cross the positioning step 122 after passing the limiting protrusion 121 away from the device body 2.

[0076] In other embodiments, the limiting protrusion (limiting protrusion 121) may also be provided at the axial center of the connecting end 12.

[0077] In this embodiment, the axial middle periphery of the positioning end 11 is provided with a transition step 111 that matches the inner cavity shape of the trachea 10, so that the tooling body 1 can be fitted with a T-shaped trachea 10 with a stepped transition in the axial middle.

[0078] In this embodiment, the positioning end 11 is provided with a clearance hole 112 that passes through the positioning end 11 along its axial direction, and the connecting end 12 is provided with a screw through hole 123 that passes through the connecting end 12 along its axial direction and communicates with the clearance hole 112 and is coaxially arranged with the clearance hole 112. One end of the connecting end 12 is detachably fixed to the device body 2 by a connecting screw 5 passing through the clearance hole 112, the screw through hole 123 and the corresponding fixing hole of the device body 2, so that the tooling body 1 can be quickly and conveniently disassembled and assembled with the device body 2, which facilitates the separate transportation, storage and maintenance of the tooling body 1 and its free combination with device bodies 2 of different specifications, models and power to form various types of pressure pipe devices.

[0079] In this embodiment, the elastic element 4 is a spring sleeved on the connecting end 12, with the two ends of the spring respectively abutting against the device body 2 and the movable retaining ring 3.

[0080] In this embodiment, the displacement sensor 21 is a magnetic induction switch, and the movable retaining ring 3 is made of ferromagnetic material.

[0081] In other embodiments, displacement sensor 21 may also be an optical or mechanical displacement sensor.

[0082] In the embodiment provided by the present invention, when the elastic member 4 abuts between the device body 2 and the movable retaining ring 3, the end face (end) of the limiting part 31 facing away from the device body 2 can pass the limiting protrusion 121 and then pass the positioning step 122 by a certain distance. This allows the positioning end 11 to maintain a certain initial value B when the air tube 10 is sleeved on the positioning step 122 and the end face (end) of the limiting part 31 facing away from the device body 2. This initial value is greater than the target value A that the end of the air tube 10 needs to extend (exceed) the end of the protruding sleeve 82 when the air tube 10 is assembled. The target value A is the distance value that the end of the air tube 10 needs to reserve with the end of the protruding sleeve 82 when the air tube 10 is assembled. The initial value B - target value A = adjustment value C. The adjustment value C is the set value that the above-mentioned movement distance of the elastic member 4, which is detected by the displacement sensor 21 and compressed by the movable retaining ring 3, needs to reach.

[0083] When the air tube 10, which is pre-fitted to the positioning end 11, is pre-pressed from the protruding sleeve 82 of the target housing 8 into the corresponding mounting hole 811 of the target housing 8 by the pressing device, the limiting part 31 of the movable retaining ring 3 first comes into contact with the end of the protruding sleeve 82. Therefore, in the subsequent process of the pressing device pressing the air tube 10 into the corresponding mounting hole 811 by the device body 2, the limiting part 31 of the movable retaining ring 3 is always kept in contact with the end of the protruding sleeve 82 due to the restriction of the protruding sleeve 82. Meanwhile, the device body 2 drives the tooling body 1 (positioning end 11) and the air tube 10 to continue to move closer to the housing. At the same time, the device body 2 moves closer to the movable retaining ring 3 (that is, the movable retaining ring 3 slides along the circumference of the connecting end 12 towards the side of the device body 2), so that the movable retaining ring 3 and the device body 2 continuously apply force and jointly compress the elastic element 4.

[0084] During this process, the device body 2 pushes the outer wall (circumferential side) of the connecting end 12 of the tooling body 1 to slide along the inner wall of the movable retaining ring 3 towards the target housing 8. That is, the inner wall of the movable retaining ring 3 slides along the outer wall (circumferential side) of the connecting end 12 towards the displacement sensor 21 (magnetic induction switch) of the device body 2, so that the distance between the movable retaining ring 3 and the displacement sensor 21 gradually decreases. The decrease in distance between the movable retaining ring 3 and the displacement sensor 21 is equal to the distance between the movable retaining ring 3 and the compression elastic element 4 of the device body 2, and is also equal to the value at which the distance between the end of the air pipe 10 positioned on the positioning step 122 and the side of the limiting part 31 facing away from the device body 2 (the end face of the limiting cylinder facing away from the device body 2) decreases from the initial value B.

[0085] Until the displacement sensor 21 detects that the moving distance of the movable retaining ring 3 compressing the elastic element 4 reaches the preset adjustment value C (i.e. the preset value), that is, at this time the end of the air tube 10 meets the condition that the value of the end of the protruding sleeve 82 extending out of the initial value B - adjustment value C = target value A, the tube pressing device stops pressing into the air tube 10 and disengages, completing the positioning and assembly of the end of the air tube 10 extending out of the protruding sleeve 82 at the target value A in the mounting hole 811.

[0086] Please refer to the following: Figure 6-10 The present invention also provides an air tube 10 assembly system, including a conveying device 6 and a central control device 9. The air tube 10 assembly system also includes the above-mentioned air tube 10 assembly positioning fixture. The conveying device 6 is used to convey multiple target housings 8 at intervals to the assembly position on one side of the tube pressing device, so that the tube pressing device can press the air tube 10 pre-fitted to the positioning end 11 from the protruding sleeve 82 of the target housing 8 positioned at the assembly position into the corresponding mounting hole 811. The central control device 9 is used to control the conveying device 6 and the tube pressing device.

[0087] In this embodiment, the central control device 9 uses a PLC controller.

[0088] In this embodiment, the conveying device 6 also includes a material blocking mechanism 61 and a position sensor (not shown in the figure) connected to the central control device 9 via a release switch 611. The material blocking mechanism 61 is used to block and position the target housing 8 at the assembly position when the position sensor senses that the target housing 8 has arrived at the assembly position; the main body 2 of the pipe pressing device is a pneumatic hammer.

[0089] The trachea 10 assembly system also includes:

[0090] The high-pressure gas tank 7 is connected to the internal air passage of the air hammer through the delivery pipe 71, and is used to provide a high-pressure gas source to the air hammer.

[0091] A flow switch 711 is installed in the delivery pipe 71 and connected to the central control device 9. It is used to detect the flow rate of high-pressure gas passing through the delivery pipe 71 (by detecting the gas pressure signal in the delivery pipe 71).

[0092] Ventilation switch 22, located on the air hammer, is used to open and close the internal air passage of the air hammer;

[0093] Solenoid valve 712 is located at the connection between high-pressure gas tank 7 and delivery pipe 71, and is used to control the opening and closing of high-pressure gas tank 7 and delivery pipe 71 to start or stop delivery pipe 71 from providing high-pressure gas source to air hammer.

[0094] In other embodiments, the main body 2 of the pressing device can also be a mechanically powered hammer.

[0095] In this embodiment, the target housing 8 is a compressor housing, the mounting hole 811 is the air inlet of the pump body 81 inside the compressor housing, and the air pipe 10 is a suction pipe that cooperates with the air inlet.

[0096] In this embodiment, the material blocking mechanism 61 adopts a material blocking cylinder mechanism.

[0097] Please refer to the following: Figure 11-13 The present invention also provides a method for controlling the assembly of a trachea 10, which utilizes the aforementioned trachea 10 assembly system, comprising:

[0098] S1: The conveying device 6 conveys multiple target housings 8 at intervals to the assembly position on one side of the pressing device. The release switch 611 is closed, and the baffle mechanism 61 blocks and positions the target housings 8 at the assembly position.

[0099] S2: Manual or robotic arm automatically pre-fits the air tube 10 (inhalation tube) onto the positioning end 11 of the tube pressing device (tool body 1), and the air hammer of the tube pressing device (manual or robotic arm automatically) pushes the air tube 10 into the corresponding mounting hole of the pump body 81 of the target housing 8.

[0100] S3: The ventilation switch 22 opens the internal air passage of the air hammer, and at the same time the central control device 9 controls the solenoid valve 712 to open and connect the high-pressure gas tank 7 and the delivery pipe 71, so that the high-pressure gas is introduced into the air hammer through the flow switch 711, driving the air hammer to start the striking action, so as to continuously press the air pipe 10 pre-fitted to the positioning end 11 from the protruding sleeve 82 of the target housing 8 positioned at the assembly position into the corresponding mounting hole 811 of the target housing 8. At the same time, the limiting part 31 abuts against the end of the protruding sleeve 82 and the movable retaining ring 3 compresses the elastic element 4.

[0101] S4: When the displacement sensor 21 detects that the distance of the movable retaining ring 3 towards the inner side of the positioning end 11 (towards the main body 2 of the device) compressing the elastic element 4 reaches the set value (adjustment value C), it is determined that the air tube 10 is pressed into the mounting hole 811 (that is, at this time, the end of the air tube 10 meets the requirement that the value of the end of the protruding sleeve 82 is the initial value B - adjustment value C = target value A). The displacement sensor 21 generates a corresponding identification signal and feeds it back to the central control device 9. The central control device 9 generates a corresponding control signal to the ventilation switch 22 so that the ventilation switch 22 closes the internal air passage and controls the solenoid valve 712 to close the passage between the high pressure air tank 7 and the delivery pipe 71. The target housing 8 completes the positioning and assembly of the air tube 10.

[0102] S5: After the flow switch 711 senses the signal of a sudden drop in high-pressure gas flow (i.e., a signal of a sudden drop in high-pressure gas pressure), the release switch 611 opens, the baffle mechanism 61 releases the target housing 8 from the assembly position, and the conveying device 6 transports the target housing 8, which has completed the positioning and assembly of the gas pipe 10, to the unloading position. Then the next cycle begins.

[0103] In this embodiment, when the flow switch 711 in S4 detects that the high-pressure gas flow rate rises to the set value and remains at the set value, it sends a corresponding signal to the central control device 9. The central control device 9 determines that the air hammer is in the state of starting work and maintaining work, and controls the release switch 611 to remain closed.

[0104] In this embodiment, the flow switch 711 in S5 detects a sudden drop in the high-pressure gas flow rate (e.g., Figure 12 After the downward-pointing arrow signal, the duration T of the high-pressure gas flow rate reduction signal is determined. If the duration T is greater than the preset threshold, the release switch 611 is opened; if the duration is less than or equal to the preset threshold, the release switch 611 remains closed and the signal is cleared.

[0105] In this embodiment, the preset threshold for duration T is 0.3 seconds.

[0106] like Figure 12 As shown, theoretically, the flow rate is stable during the operation of the air hammer; therefore, the flow signal theoretically acquired by the flow switch 711 is stable (e.g., Figure 12 As shown above), however, the actual signal collected by the flow switch 711 is often fluctuating (e.g., Figure 12 As shown below, during the operation of the pneumatic hammer, the flow rate often drops due to airflow fluctuations, which may cause the flow switch 711 to misjudge the work completion signal (interference signal) and transmit it to the central control device 9, causing the release switch 611 to open erroneously, which in turn causes the material blocking mechanism 61 to release the target housing 8 that has not completed the positioning and assembly of the air pipe 10.

[0107] Please read Figure 13 To prevent the flow switch 711 from misjudging interference signals and causing the target housing 8 to be released erroneously, the central control device 9 connected to the flow switch 711 calculates the duration T of the high-pressure gas flow reduction signal. If the duration T is greater than a preset threshold, the flow switch 711 is determined to be the real signal of the end of the pneumatic hammer operation, and the release switch 611 is opened to allow the baffle mechanism 61 to release the target housing 8. If the duration is less than or equal to the preset threshold, the flow switch 711 is determined to be an interference signal, and the release switch 611 is kept closed to prevent the baffle mechanism 61 from releasing the target housing 8 erroneously.

[0108] After repeated experiments and verifications, the optimal value for the duration T of the high-pressure gas flow reduction signal is 0.3 seconds. That is, if the duration T of the flow reduction is greater than 0.3 seconds, it is determined as the end signal of the gas hammer operation, and if the duration T of the flow reduction is less than or equal to 0.3 seconds, it is determined as a fluctuation signal (interference signal).

[0109] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the invention.

Claims

1. A tracheal tube assembly and positioning fixture, characterized in that, include: A tube clamping device includes a positioning end for installing an air tube, and a movable retaining ring located around the positioning end that can move back and forth along the axial direction of the positioning end. A displacement sensor, mounted on the pressure tube device, is used to detect the distance the movable retaining ring moves toward the inside of the positioning end; When the protruding sleeve of the target housing is connected to the side of the movable retaining ring facing the outside of the positioning end, the pressing device presses the air tube through the protruding sleeve into the mounting hole of the target housing towards the outside of the positioning end until the movement distance detected by the displacement sensor reaches the set value. The compression device further includes: The main body of the device is used to provide the power for pressing the pipe; The tooling body includes a connecting end, which is fixedly connected to the device body, and a limiting protrusion is provided on the periphery of the connecting end; and a positioning end, which is connected to the connecting end, and the radial dimension of the positioning end is smaller than that of the connecting end. The outer side of the tube pressing device facing the positioning end is a positioning step formed at the junction of the positioning end and the connecting end, which is used to position the end of the air tube when the air tube is sleeved on the positioning end. The movable retaining ring is sleeved on the connecting end. The movable retaining ring includes a limiting part, which is located at the end of the movable retaining ring facing away from the main body of the device. The side of the movable retaining ring facing outward from the positioning end is the side of the limiting part facing away from the main body of the device. And an elastic element, connected between the device body and the movable retaining ring, so that the movable retaining ring abuts against the limiting protrusion and the limiting part moves away from the device body and crosses the positioning step; The displacement sensor is mounted on the main body of the device and is used to detect the movement distance of the movable retaining ring towards the main body of the device to compress the elastic element; When the protruding sleeve of the target housing is connected to the side of the limiting part facing away from the main body of the device, the main body of the device drives the positioning step to press the air tube through the protruding sleeve into the mounting hole.

2. The tracheal tube assembly and positioning fixture as described in claim 1, characterized in that, The limiting part is a limiting cylinder, and the side of the limiting part facing away from the main body of the device is the end face of the limiting cylinder facing away from the main body of the device. The limiting cylinder wraps the limiting protrusion inside the limiting cylinder.

3. The tracheal tube assembly and positioning fixture as described in claim 2, characterized in that, The limiting protrusion is a limiting protrusion ring.

4. The tracheal tube assembly and positioning fixture as described in claim 3, characterized in that, The limiting protrusion is located at the end of the connection end that is away from the main body of the device.

5. The tracheal tube assembly and positioning fixture as described in claim 1, characterized in that, Both the connecting end and the positioning end are cylindrical, and they are coaxially connected.

6. The tracheal tube assembly and positioning fixture as described in claim 5, characterized in that, The axial center of the positioning end is provided with a transition step that matches the inner shape of the trachea.

7. The tracheal tube assembly and positioning fixture as described in claim 5, characterized in that, The positioning end is provided with a clearance hole that passes through the positioning end along its axial direction. The connecting end is provided with a screw through hole that passes through the connecting end along its axial direction and communicates with the clearance hole and is coaxially arranged with the clearance hole. One end of the connecting end is detachably and fixedly connected to the device body by a connecting screw passing through the clearance hole, the screw through hole and the corresponding fixing hole of the device body.

8. The tracheal tube assembly and positioning fixture as described in any one of claims 1-7, characterized in that, The elastic element is a spring sleeved on the connecting end, with the two ends of the spring respectively abutting against the main body of the device and the movable retaining ring.

9. The tracheal tube assembly and positioning fixture as described in any one of claims 1-7, characterized in that, The displacement sensor is a magnetic induction switch, and the movable retaining ring is made of ferromagnetic material.

10. A tracheotomy system, comprising a delivery device and a central control device, characterized in that, The tracheal tube assembly system further includes a tracheal tube assembly positioning fixture as described in any one of claims 1-9, wherein the conveying device is used to position and convey multiple target housings at intervals to the assembly position on one side of the tube pressing device, so that the tube pressing device can press the tracheal tube pre-fitted to the positioning end from the protruding tube sleeve of the target housing positioned at the assembly position into the corresponding mounting hole; the central control device is used to control the conveying device and the tube pressing device.

11. The tracheal tube assembly system as described in claim 10, characterized in that, The conveying device also includes a material blocking mechanism connected to the central control device via a release switch, used to block and position the target housing at the assembly position; The main body of the pipe-pressing device is an air hammer; The tracheal tube assembly system also includes: A high-pressure gas tank is connected to the internal air passage of the air hammer via a delivery pipe, and is used to provide a high-pressure gas source to the air hammer; A flow switch, located in the delivery pipe, is used to detect the flow rate of high-pressure gas passing through the delivery pipe; A ventilation switch, located on the air hammer, is used to open or close the internal air passage.

12. The tracheal tube assembly system as described in claim 11, characterized in that, The target housing is a compressor housing, the mounting hole is the air inlet of the pump body inside the compressor housing, and the air pipe is an air intake pipe that cooperates with the air inlet.

13. A trachea assembly control method for a trachea assembly system as described in claim 11 or 12, characterized in that, include: S1: When the conveying device transports multiple target housings at intervals to the assembly position on one side of the pressing device, the release switch is closed, and the material blocking mechanism blocks and positions the target housings at the assembly position. S2: Pre-fit the air tube onto the positioning end of the crimping device, and the crimping device will pre-press the air tube from the protruding sleeve of the target housing into the corresponding mounting hole of the target housing; S3: The ventilation switch opens the internal air passage of the air hammer, allowing high-pressure gas to enter the air hammer and drive it to continuously press the air pipe pre-fitted to the positioning end into the mounting hole. S4: When the displacement sensor detects that the moving distance of the movable retaining ring toward the inside of the positioning end has reached the set value, the vent switch closes the internal air passage, and the target housing completes the air tube positioning assembly. S5: After the flow switch senses the signal of a sudden drop in high-pressure gas flow, the release switch is opened, the material blocking mechanism releases the target housing from the assembly position, and the conveying device transports the target housing with the gas pipe positioning assembly completed to the unloading position.

14. The tracheal assembly control method as described in claim 13, characterized in that, In S5, after detecting a sudden drop in high-pressure gas flow, the flow switch determines the duration T of the high-pressure gas flow reduction signal. If the duration T is greater than a preset threshold, the release switch is opened; if the duration is less than or equal to the preset threshold, the release switch remains closed.

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