Medical cable welding spot tension test fixture

Abstract

The utility model discloses a medical cable welding spot tension test fixture, the medical cable welding spot tension test fixture comprises a test box, a wire pressing mechanism and a wire pulling mechanism, the wire pressing mechanism presses a cable, the wire pulling mechanism comprises a telescopic device, a telescopic controller, a tension sensor, a middle connecting piece and a drag hook, the telescopic controller controls the telescopic device to act, and the tension sensor is connected with the middle connecting piece. The expansion piece and the tension sensor are connected through the middle connecting piece, and the drag hook is connected to the other end of the tension sensor. According to the medical cable welding spot tension test fixture, the cable is pressed through the cable pressing mechanism, then the cable is connected to the cable pulling mechanism, the expansion piece does expansion motion, the cable is pulled, the tension test is performed on the cable, the tension sensor is used for detecting the tension value in the cable tension test process, and the tension sensor is used for detecting the tension value in the cable tension test process. According to the medical cable welding spot tension test fixture, the automation of the medical cable tension test is realized, and the test efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical cable production, in particular to a medical cable solder joint tension test fixture. Background Art

[0002] During the processing of medical cables and other products, false and cold joints can occur when the cables are welded on semi-automatic welding machines. These problems cannot be completely identified by the CCD detectors on these machines. Furthermore, after the product's solder joints are assembled and covered, they cannot be visually identified. Therefore, tensile testing of the cables is necessary to verify the presence of false and cold joints.

[0003] In the existing technology, cable tension testing adopts manual testing method. The operator uses the method of 100% weight lifting to check whether the welding point is firmly welded. The manual testing method is not only inefficient, but also easily causes blisters on the fingers and severe limb fatigue after long-term operation. Utility Model Content

[0004] In order to solve the above technical problems, the embodiments of the present invention hope to provide a method for detecting welding conditions by manually using weights to solve the problem of low cable detection efficiency.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A medical cable solder joint tensile test fixture comprises a test box, and a wire pressing mechanism and a wire pulling mechanism provided on the test box. The wire pressing mechanism is used to press one end of the cable. The wire pulling mechanism comprises a retractor, a retractor controller, a tension sensor, an intermediate connector, and a hook. The retractor controller controls the movement of the retractor. The retractor and the tension sensor are connected via the intermediate connector. The hook is connected to one end of the tension sensor away from the intermediate connector and is used to hook the other end of the cable.

[0007] Preferably, the intermediate connecting piece is a U-shaped channel steel.

[0008] Preferably, the telescopic device is a cylinder, and the telescopic controller is an air valve.

[0009] Preferably, the expander is further connected to a support bracket, the support bracket is supported on the test box, and the expander passes through the support bracket and is connected to the intermediate connecting member.

[0010] Preferably, the tension sensor is connected to the intermediate connecting member by bolts.

[0011] Preferably, the wire pressing mechanism includes a telescopic driver, a pressure plate and a pad, the pad is fixed on the test box, one end of the pressure plate is fixedly connected to the telescopic driver and is driven up and down by the telescopic driver, the other end of the pressure plate is suspended in the air, the pressure plate is located directly above the pad, and the pressure plate moves closer to or away from the pad under the drive of the telescopic driver.

[0012] Preferably, the telescopic driver is disposed in the test box, and the telescopic driver extends from the test box and is fixedly connected to the pressure plate.

[0013] Preferably, the telescopic driver is an air cylinder, an oil cylinder or a push rod.

[0014] Preferably, the test box is provided with a main switch for controlling the fixture, a wire pulling control switch for controlling the wire pulling mechanism, and a wire pressing control switch for controlling the wire pressing mechanism.

[0015] The medical cable weld point tension test fixture provided by the embodiment of the present invention presses one end of the cable through the provided wire pressing mechanism, and then connects the cable to the hook of the wire pulling mechanism. The telescopic controller controls the telescope to perform telescopic movement, pulls the cable, and performs a tension test on the cable. The tension sensor is used to detect the tension value during the cable tension test to confirm whether the applied tension meets the cable test requirements. The medical cable weld point tension test fixture realizes the automation of the cable tension test, can effectively detect whether the cable has false welding or cold welding, has high test efficiency, and solves the problem of low cable tension caused by the manual method of hanging weights to detect cable tension in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the medical cable solder joint tension test fixture provided by the utility model;

[0017] Figure 2 for Figure 1 The exploded view of the medical cable solder joint tensile test fixture is shown. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] Please refer to Figure 1and Figure 2 , is a schematic diagram of the structure of the medical cable solder joint tensile test fixture provided by the present invention. The medical cable solder joint tensile test fixture comprises a test box 1, and a wire pressing mechanism 3 and a wire pulling mechanism 5 provided on the test box 1. The wire pressing mechanism 3 is used to press one end of the cable. The wire pulling mechanism 5 comprises an expander 51, an expansion controller 53, a tension sensor 55, an intermediate connector 57, and a hook 59. The expansion controller 53 controls the movement of the expander 51. The expander 51 and the tension sensor 55 are connected via the intermediate connector 57. The hook 59 is connected to the end of the tension sensor 55 away from the intermediate connector 57 and is used to hook the other end of the cable. The wire pressing mechanism 3 is provided to press one end of the cable, and then the cable is connected to the hook 59 of the wire pulling mechanism 5. The telescopic controller 53 controls the telescope 51 to perform telescopic movement, pulling the cable to perform a tension test on the cable. The tension sensor 55 is used to detect the tension value during the cable tension test to confirm whether the applied tension meets the test requirements of various cables. The medical cable solder joint tension test fixture realizes the automation of cable tension testing, and can effectively detect whether the cable has false welding or cold welding. The test efficiency is high, which solves the problem of low cable caused by the manual method of lifting weights to detect cable tension in the existing technology.

[0020] Furthermore, the intermediate connector 57 is a U-shaped channel steel. The intermediate connector 57 is supported on the test box 1, with the bottom surface of the U-shaped channel steel contacting the upper surface of the test box 1, the hook 59 is connected and fixed to one side of the U-shaped channel, and the retractor 51 is connected and fixed to the other side of the U-shaped channel.

[0021] The telescopic device 51 is a cylinder, the telescopic controller 53 is an air valve, the air pressure is supplied by a unified air compressor, and the air valve is installed on the air supply pipeline to control the air volume and on-off of the cylinder.

[0022] The expander 51 is also connected to a support bracket 6. The cross section of the support bracket 6 is L-shaped. The bottom of the support bracket 6 is supported on the test box 1. The expansion rod of the expander 51 passes through the support bracket 6 and is connected to the intermediate connector 57. The support bracket 6 is used to support the expander, making the movement of the expander more reliable.

[0023] Furthermore, the tension sensor 55 is connected to the intermediate connecting member 57 by bolts, and the tension sensor 55 and the intermediate connecting member 57 form a detachable connection, which facilitates the removal and replacement of the tension sensor 55.

[0024] Specifically, in this embodiment, the wire pressing mechanism 3 includes a telescopic driver 31, a pressure plate 33, and a pad 35. The pad 35 is fixed to the test box 1. One end of the pressure plate 33 is fixedly connected to the telescopic driver 31 and is driven by the telescopic driver 31 to move up and down. The other end of the pressure plate 33 is suspended in the air. The pressure plate 33 is located directly above the pad 35, and the pressure plate 33 moves toward or away from the pad 35 under the drive of the telescopic driver 31. When the pressure plate 33 approaches the pad 35, it clamps the cable. When the pressure plate 33 moves away from the pad 35, it opens. The tested cable can be taken out and replaced with a new test cable.

[0025] Specifically, the telescopic actuator 31 is disposed within the test box 1 , extending from the test box 1 and fixedly connected to the pressure plate 33 . Specifically, in this embodiment, the telescopic actuator 31 is a pneumatic cylinder, an oil cylinder, or a push rod. Preferably, in this embodiment, the telescopic actuator 31 is a pneumatic cylinder. The cylinder's telescopic rod extends from within the test box 1 through a panel and connects to the pressure plate 33, driving the pressure plate 33 up and down.

[0026] In addition, the test box 1 is provided with a main switch 11 for controlling the fixture, a wire-pull control switch 12 for controlling the wire-pull mechanism 5, and a wire-pressing control switch 13 for controlling the wire-pressing mechanism 3. The main switch is used to control the start and stop of the fixture, the wire-pull control switch is electrically connected to the telescopic controller 53 to control the movement of the telescopic controller 53, and the wire-pressing control switch is electrically connected to the telescopic actuator 31 to control the movement of the telescopic actuator 31.

[0027] The medical cable solder joint tension test fixture provided by the embodiment of the present invention presses one end of the cable through the provided wire pressing mechanism 3, and then connects the cable to the hook 59 of the wire pulling mechanism 5. The telescopic controller 53 controls the telescope 51 to perform telescopic movement, pulls the cable, and performs a tension test on the cable. The tension sensor 55 is used to detect the tension value during the cable tension test to confirm whether the applied tension meets the cable test requirements. The medical cable solder joint tension test fixture realizes the automation of the cable tension test, can effectively detect whether the cable has false welding or cold welding, has high test efficiency, and solves the problem of low cable caused by the manual method of hanging weights to detect cable tension in the prior art.

[0028] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A medical cable solder joint tensile test fixture, characterized in that: It includes a test box, and a wire pressing mechanism and a wire pulling mechanism arranged on the test box, wherein the wire pressing mechanism is used to press one end of the cable, and the wire pulling mechanism includes a telescope, a telescopic controller, a tension sensor, an intermediate connecting piece and a hook, the telescopic controller controls the action of the telescope, the telescope and the tension sensor are connected through the intermediate connecting piece, and the hook is connected to one end of the tension sensor away from the intermediate connecting piece and is used to hook the other end of the cable.

2. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The intermediate connecting piece is a U-shaped channel steel.

3. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The telescopic device is a cylinder, and the telescopic controller is a gas valve.

4. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The retractor is also connected to a support frame, the support frame is supported on the test box, and the retractor passes through the support frame and is connected to the intermediate connecting piece.

5. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The tension sensor is connected to the intermediate connecting member by bolts.

6. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The wire pressing mechanism includes a telescopic driver, a pressing plate and a pad, wherein the pad is fixed on the test box, one end of the pressing plate is fixedly connected to the telescopic driver and is driven by the telescopic driver to move up and down, and the other end of the pressing plate is suspended in the air, the pressing plate is located directly above the pad, and the pressing plate moves closer to or away from the pad under the drive of the telescopic driver.

7. The medical cable solder joint tensile test fixture according to claim 6, characterized in that: The telescopic driver is arranged in the test box, and the telescopic driver extends from the test box and is fixedly connected to the pressing plate.

8. The medical cable solder joint tensile test fixture according to claim 6, characterized in that: The telescopic driver is an air cylinder, an oil cylinder or a push rod.

9. The medical cable solder joint tensile test fixture according to claim 1, characterized in that: The test box is provided with a main switch for controlling the fixture, a wire pulling control switch for controlling the wire pulling mechanism, and a wire pressing control switch for controlling the wire pressing mechanism.

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