Automatic friction welding device based on medical hose interface connection

Abstract

The present invention discloses an automated friction welding device for medical hose interface connections. The device comprises a frame, a servo drive disposed within the frame, a joint welding assembly disposed to the right of the servo drive, and a medical hose clamp disposed on the outside of the joint welding assembly. The joint welding assembly comprises a servo motor and a centrifugal clamp. The centrifugal clamp comprises a first guide rail, the inner side of which is connected to the servo motor, and a first slider and a second slider are spaced apart on the outer side of the first guide rail. The first slider is provided with a first clamping member, and the second slider is provided with a second clamping member. The present invention automatically clamps the joint by generating centrifugal force through the rotation of the servo motor. During rotation, friction heat is generated, causing plastic deformation at the connection between the medical hose and the joint, completing the welding operation. The medical hose and the joint are connected by friction welding, resulting in high connection strength, high tensile strength, and high-quality finished products.

Description

Technical Field

[0001] The invention relates to an automated friction welding device based on medical hose interface connection. Background Art

[0002] Medical hose and connector connection technology is a key technology in medical device manufacturing. Medical hoses are specially designed hoses typically used to transport substances such as gases, liquids, or powders. Connectors are tools used to connect different components, connecting medical hoses to other devices or components to form a complete system.

[0003] Currently, gluing is the most common way to connect medical hoses and connectors. Although this method is simple and easy to use, it has some disadvantages:

[0004] First, the tensile strength of the connection between the medical hose and the connector is low and cannot withstand large tensile forces;

[0005] Secondly, during long-term use, the glue is prone to aging, resulting in loose connections and possible problems such as leakage and air leakage;

[0006] In addition, the adhesive requires a certain amount of time to dry and cure, which results in extended production time and reduced production efficiency. Summary of the Invention

[0007] The main purpose of the present invention is to provide an automated friction welding device based on medical hose interface connection to solve the problems raised in the above background.

[0008] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0009] An automated friction welding device based on medical hose interface connection includes a frame, a servo drive is provided inside the frame, a joint welding assembly is provided on the right side of the servo drive, and a medical hose clamp is provided on the outside of the joint welding assembly;

[0010] The joint welding assembly includes a servo motor and a centrifugal clamp, the centrifugal clamp includes a first guide rail, the inner side of the first guide rail is connected to the servo motor, the outer side of the first guide rail is provided with a first slider and a second slider, the first slider is provided with a first clamping piece, and the second slider is provided with a second clamping piece;

[0011] After the medical hose clamp clamps the medical hose, the servo motor drives the centrifugal clamp to rotate, and the first slider and the second slider slide outward under the action of centrifugal force, so that the clamping part of the first clamping member and the clamping part of the second clamping member hook together and clamp the connecting part of the medical hose and the connector.

[0012] Preferably, the medical hose clamp comprises a rotating disk, a second guide rail and a third guide rail are arranged at intervals along the height direction on the inner side of the rotating disk, a first clamping block is provided on the second guide rail, and a second clamping block is provided on the third guide rail.

[0013] Preferably, the rotating disk is provided with a first guide hole and a second guide hole, the first clamping block is provided with a first guide post moving in the first guide hole, and the second clamping block is provided with a second guide post moving in the second guide hole.

[0014] Preferably, a handle is provided on the outside of the rotating disk, and a placement hole is provided in the middle of the rotating disk.

[0015] Preferably, a first return spring is provided on the first clamping member, and the two sides of the first return spring are respectively connected to the first clamping member and the first guide rail; a second return spring is provided on the second clamping member, and the two sides of the second return spring are respectively connected to the second clamping member and the first guide rail.

[0016] Preferably, a blocking piece is provided in the middle of the first guide rail, and blocking columns are provided on both sides of the first guide rail.

[0017] Preferably, a column is provided at the right rear of the first guide rail, and a first proximity sensor is provided behind the column. When the first proximity sensor senses the column, the first guide rail stops rotating.

[0018] Preferably, a second proximity sensor is provided below the rotating disk, and when the second proximity sensor senses that the rotating disk is approaching, the joint welding assembly starts to work.

[0019] Preferably, a control panel is provided on the outer wall of the frame.

[0020] The method for using an automated friction welding device based on medical hose interface connection includes the following steps:

[0021] Step 1: Check the operation of the servo driver and servo motor, the sliding of the first guide rail, the second guide rail and the third guide rail, the first slider, the second slider, the first clamping block and the second clamping block, and the rotation of the rotating disk;

[0022] Step 2: Start the device and set the parameters through the control panel, send the command to the servo driver, and the servo driver controls the precise movement of the servo motor;

[0023] Step 3: Manually insert the medical hose into the connector. Hold the medical hose and insert the end with the connector into the placement hole until the connector touches the baffle.

[0024] Step 4: Turn the handle to rotate the rotating disk, so that the first guide post moves along the first guide hole, thereby driving the first clamping block to move downward in the second guide rail, and the second guide post moves along the second guide hole, thereby driving the second clamping block to move upward in the third guide rail, completing the clamping action;

[0025] Step 5: After the clamping is completed, the second proximity sensor senses the approach of the rotating disk, the servo motor starts, and the centrifugal clamp rotates. The first slider and the second slider slide outward due to the centrifugal force, causing the first clamping member and the second clamping member to instantly clamp the joint. Heat is generated during the rotation process, completing the friction welding of the medical hose and the joint.

[0026] Step 6: According to the set parameters, the servo motor automatically stops after completing one welding. The first clamping member and the second clamping member return to their initial positions under the action of the first return spring and the second return spring respectively, canceling the clamping action. The operator takes out the welded medical hose and connector, puts in the medical hose and connector to be welded again, and repeats step to step.

[0027] Compared with the prior art, the beneficial technical effects of the present invention are:

[0028] 1. The present invention generates centrifugal force through the rotation of the servo motor to automatically clamp the joint. During rotation, friction heat is generated, which causes plastic deformation at the connection between the medical hose and the joint, completing the welding operation. The medical hose and the joint are connected by friction welding, which has high connection strength, high tensile strength, and good finished product quality. During welding, workers only need to insert the medical hose and the joint into the device, which is simple to operate, fast in connection speed, and high in production efficiency.

[0029] 2. The present invention uses the second proximity sensor to sense the approach of the rotating disk after the medical hose clamp is clamped, so that the servo motor is automatically started. The parameters of the servo motor servo driver are set through the control panel to control the servo motor to automatically stop after completing one welding. The first proximity sensor is used to accurately control the position where the centrifugal clamp stops, making it convenient for workers to take out the finished product, further reducing the operating difficulty and improving the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of a friction welding device according to an embodiment of the present invention;

[0031] Figure 2 is a schematic internal diagram of a friction welding device according to an embodiment of the present invention;

[0032] Figure 3 A schematic structural diagram of a rack according to an embodiment of the present invention;

[0033] Figure 4is a schematic diagram of the interior of a rack according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the positions of the medical hose clamp and the joint welding assembly according to an embodiment of the present invention;

[0035] Figure 6 This is a front structural schematic diagram of a joint welding assembly according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the back structure of a joint welding assembly according to an embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the structure of a centrifugal clamp according to an embodiment of the present invention;

[0038] Figure 9 Schematic diagram of the front structure of a medical hose clamp according to an embodiment of the present invention;

[0039] Figure 10 Schematic diagram of the back structure of the medical hose clamp according to an embodiment of the present invention;

[0040] Figure 11 Schematic diagram of the internal structure of the rotating disk according to an embodiment of the present invention.

[0041] In the figure: 1-frame, 2-servo drive, 3-medical hose clamp, 4-connector welding assembly, 5-servo motor, 6-centrifugal clamp, 7-first guide rail, 8-first slider, 9-second slider, 10-first clamping member, 11-second clamping member, 12-rotating disk, 13-second guide rail, 14-third guide rail, 15-first clamping block, 16-second clamping block, 17-first guide hole, 18-second guide hole, 19-first guide column, 20-second guide column, 21-handle, 22-placement hole, 23-first return spring, 24-second return spring, 25-blocking piece, 26-blocking column, 27-column, 28-first proximity sensor, 29-second proximity sensor, 30-control panel, 31-medical hose, 32-connector. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] See also Figures 1 to 11 The present invention provides an embodiment of an automated friction welding device for medical hose interface connection, comprising a frame 1, a servo drive 2 disposed inside the frame 1, a joint welding assembly 4 disposed on the right side of the servo drive 2, and a medical hose clamp 3 disposed on the outside of the joint welding assembly 4;

[0044] The joint welding assembly 4 includes a servo motor 5 and a centrifugal fixture 6. The centrifugal fixture 6 includes a first guide rail 7. The inner side of the first guide rail 7 is connected to the servo motor 5. The outer side of the first guide rail 7 is provided with a first slider 8 and a second slider 9 at intervals. A first clamping member 10 is provided on the first slider 8, and a second clamping member 11 is provided on the second slider 9. The clamping portion of the first clamping member 10 is a U-shaped structure with an upward opening, and the clamping portion of the second clamping member 11 is a U-shaped structure with a downward opening. The first clamping member 10 hooks the right side of the medical hose 31 and the joint 32, and the second clamping member 11 hooks the left side of the medical hose 31 and the joint 32 to complete the clamping action.

[0045] After the medical hose fixture 3 clamps the medical hose 31, the servo motor 5 drives the centrifugal fixture 6 to rotate. The first slider 8 and the second slider 9 slide outward under the action of centrifugal force, so that the clamping portions of the first clamping member 10 and the second clamping member 11 hook each other and clamp the connecting part of the medical hose 31 and the joint 32, and the two are welded together by friction heat. The friction welding method is used to connect the medical hose 31 and the joint 32, with high connection strength, large tensile strength and good finished product quality. During welding, the worker only needs to insert the medical hose 31 and the joint 32 into the device, which is simple to operate, fast in connection speed and high in production efficiency.

[0046] Furthermore, the medical hose fixture 3 includes a rotating disk 12. The inner side of the rotating disk 12 is symmetrically provided with a second guide rail 13 and a third guide rail 14 up and down. A first clamping block 15 is provided on the second guide rail 13, and a second clamping block 16 is provided on the third guide rail 14. The worker holds the medical hose 31 and puts the side where the medical hose 31 is connected to the joint 32 into the device, and then the first clamping block 15 and the second clamping block 16 slide towards the center along the second guide rail 13 and the third guide rail 14 respectively to clamp and fix the medical hose 31, so that the medical hose 31 will not rotate during friction welding, ensuring the connection quality.

[0047] Furthermore, the rotating disk 12 is provided with a first guiding hole 17 and a second guiding hole 18. The first clamping block 15 is provided with a first guiding column 19 that moves in the first guiding hole 17, and the second clamping block 16 is provided with a second guiding column 20 that moves in the second guiding hole 18. The movement of the first clamping block 15 is controlled by the first guiding hole 17 and the first guiding column 19, and the movement of the second clamping block 16 is controlled by the second guiding hole 18 and the second guiding column 20.

[0048] Furthermore, a handle 21 is provided on the outside of the rotating disk 12. The handle 21 is used to rotate the rotating disk 12 to change the positions of the first guide hole 17 and the second guide hole 18. The first guide column 19 and the second guide column 20 move along the trajectories of the first guide hole 17 and the second guide hole 18 respectively, and respectively drive the first clamping block 15 and the second clamping block 16 to move toward the center to complete the clamping action. A placement hole 22 is provided in the middle of the rotating disk 12, and the medical hose 31 and the connector 32 are inserted into the medical hose clamp 3 and the connector welding assembly 4 through the placement hole 22.

[0049] Furthermore, a first return spring 23 is provided on the first clamping member 10, and the two sides of the first return spring 23 are respectively connected to the first clamping member 10 and the first guide rail 7. After completing one welding, the servo motor 5 stops rotating, and the first return spring 23 rebounds and pulls the first clamping member 10 back to its original position; a second return spring 24 is provided on the second clamping member 11, and the two sides of the second return spring 24 are respectively connected to the second clamping member 11 and the first guide rail 7. After completing one welding, the servo motor 5 stops rotating, and the second return spring 24 rebounds and pulls the second clamping member 11 back to its original position.

[0050] Furthermore, a baffle 25 is provided in the middle of the first guide rail 7. When the connector 32 rests against the baffle 25, it is placed in the correct position and operations such as clamping and welding can be started. Baffle columns 26 are provided on both sides of the first guide rail 7 to limit the maximum moving distance of the first slider 8 and the second slider 9 to prevent excessive clamping force from damaging the medical hose 31 and the connector 32.

[0051] Furthermore, a column 27 is provided at the right rear of the first guide rail 7, and a first proximity sensor 28 is provided behind the column 27. When the first proximity sensor 28 senses the column 27, the first guide rail 7 stops rotating, so that the centrifugal clamp 6 stops in a horizontal position, which is convenient for subsequent operations.

[0052] Furthermore, a second proximity sensor 29 is provided below the rotating disk 12. When the rotating disk 12 is rotated to cause the first clamping block 15 and the second clamping block 16 to clamp the medical hose 31, the position of the rotating disk 12 moves downward, so that the second proximity sensor 29 can sense the approach of the rotating disk 12 and automatically start rotating the servo motor 5 according to the set parameters, thereby reducing the starting steps and improving production efficiency.

[0053] Furthermore, a control panel 30 is provided on the outside of the frame 1 , through which the device is started and parameters are set, and instructions are sent to the servo driver 2 , which controls the servo motor 5 to move precisely.

[0054] The method for using an automated friction welding device based on medical hose interface connection includes the following steps:

[0055] Step 1: Check the operation of the servo driver 2 and the servo motor 5, the sliding of the first guide rail 7, the second guide rail 13 and the third guide rail 14, the first slider 8, the second slider 9, the first clamping block 15 and the second clamping block 16, and the rotation of the rotating disk 12;

[0056] Step 2: Start the device and set parameters through the control panel 30, send instructions to the servo driver 2, and the servo driver 2 controls the servo motor 5 to move accurately;

[0057] Step 3: Manually insert the medical hose 31 into the connector 32. Hold the medical hose 31 and insert the connector 32 through the placement hole 22 until the connector 32 touches the baffle 25.

[0058] Step 4: Turn the handle 21 to rotate the rotating disk 12, causing the first guide post 19 to move along the first guide hole 17, thereby driving the first clamping block 15 to move downward in the second guide rail 13, and causing the second guide post 20 to move along the second guide hole 18, thereby driving the second clamping block 16 to move upward in the third guide rail 14, completing the clamping action;

[0059] Step 5: After the clamping is completed, the second proximity sensor 29 senses the approach of the rotating disk 12, the servo motor 5 is started, and the centrifugal clamp 6 is rotated. The first slider 8 and the second slider 9 slide outward due to the centrifugal force, causing the first clamping member 10 and the second clamping member 11 to instantly clamp the connector 32. Heat is generated during the rotation process, completing the friction welding of the medical hose 31 and the connector 32.

[0060] Step 6: According to the set parameters, the servo motor 5 automatically stops after completing one welding. The first clamping member 10 and the second clamping member 11 return to their initial positions under the action of the first return spring 23 and the second return spring 24, respectively, and the clamping action is canceled. The operator takes out the welded medical hose 31 and connector 32, and puts in the medical hose 31 and connector 32 to be welded again, and repeats steps 3 to 6.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automated friction welding device based on medical hose interface connection, characterized in that: The invention comprises a frame (1), wherein a servo drive (2) is provided inside the frame (1), a joint welding assembly (4) is provided on the right side of the servo drive (2), and a medical hose clamp (3) is provided on the outside of the joint welding assembly (4); The joint welding assembly (4) includes a servo motor (5) and a centrifugal clamp (6), the centrifugal clamp (6) includes a first guide rail (7), the inner side of the first guide rail (7) is connected to the servo motor (5), the outer side of the first guide rail (7) is provided with a first slider (8) and a second slider (9) at intervals, the first slider (8) is provided with a first clamping member (10), and the second slider (9) is provided with a second clamping member (11); After the medical hose clamp (3) clamps the medical hose, the servo motor (5) drives the centrifugal clamp (6) to rotate, and the first slider (8) and the second slider (9) slide outward under the action of centrifugal force, so that the clamping part of the first clamping member (10) and the clamping part of the second clamping member (11) are hooked with each other and clamp the connection part of the medical hose and the connector.

2. The automated friction welding device based on medical hose interface connection according to claim 1, characterized in that: The medical hose clamp (3) comprises a rotating disk (12), a second guide rail (13) and a third guide rail (14) are arranged at intervals along the height direction on the inner side of the rotating disk (12), a first clamping block (15) is arranged on the second guide rail (13), and a second clamping block (16) is arranged on the third guide rail (14).

3. The automated friction welding device based on medical hose interface connection according to claim 2, characterized in that: The rotating disk (12) is provided with a first guide hole (17) and a second guide hole (18); the first clamping block (15) is provided with a first guide post (19) that moves in the first guide hole (17); and the second clamping block (16) is provided with a second guide post (20) that moves in the second guide hole (18).

4. The automated friction welding device based on medical hose interface connection according to claim 2, characterized in that: A handle (21) is provided on the outside of the rotating disk (12), and a placement hole (22) is provided in the middle of the rotating disk (12).

5. The automated friction welding device based on medical hose interface connection according to claim 1, characterized in that: A first return spring (23) is provided on the first clamping member (10), and two sides of the first return spring (23) are respectively connected to the first clamping member (10) and the first guide rail (7); a second return spring (24) is provided on the second clamping member (11), and two sides of the second return spring (24) are respectively connected to the second clamping member (11) and the first guide rail (7).

6. The automated friction welding device based on medical hose interface connection according to claim 1, characterized in that: A blocking piece (25) is provided in the middle of the first guide rail (7), and blocking columns (26) are provided on both sides of the first guide rail (7).

7. The automated friction welding device based on medical hose interface connection according to claim 1, characterized in that: A column (27) is provided at the right rear of the first guide rail (7), and a first proximity sensor (28) is provided behind the column (27). When the first proximity sensor (28) senses the column (27), the first guide rail (7) stops rotating.

8. The automated friction welding device based on medical hose interface connection according to claim 2, characterized in that: A second proximity sensor (29) is provided below the rotating disk (12), and when the second proximity sensor (29) senses that the rotating disk (12) is approaching, the joint welding assembly (4) starts to operate.

9. The automated friction welding device based on medical hose interface connection according to claim 1, characterized in that: A control panel (30) is provided on the outer wall of the frame (1).

Images