Testing device for detecting strength of infrared welding part

Abstract

The utility model provides a testing device for detecting the strength of an infrared welding part. The testing device comprises a main cavity, a resistance wire, a thermocouple temperature sensor and a control mechanism, a mounting plate is arranged at the lower part of the inner side of the main cavity; the resistance wire is arranged on the lower surface of the inner side of the main cavity; the thermocouple temperature sensor is arranged on one inner side wall of the main cavity; the control mechanism is arranged on the outer side of the main cavity and is connected with the resistance wire and the thermocouple temperature sensor; wherein the resistance wire heats a to-be-tested piece by emitting heat, and the thermocouple temperature sensor is used for detecting the temperature in the main cavity; the control mechanism is used for receiving temperature information of the thermocouple temperature sensor and adjusting the temperature of the resistance wire. The problem that in the prior art, an infrared welding device is difficult to be suitable for testing before welding is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared welding, in particular to a testing device for detecting the strength of infrared welded parts. Background Art

[0002] Infrared welding is a non-contact, high-strength welding method that mainly uses infrared rays to irradiate the two ends to be welded and splice them together. After pressing and cooling, a strong welding state is formed. Therefore, this welding method is now widely used in the welding of various parts with complex structures.

[0003] Common infrared welding primarily uses an infrared generator to emit infrared rays to heat the parts being welded. To prevent infrared radiation from radiating outside the currently operating area during the welding process, multiple temperature zones are designed. Furthermore, the internal structure of this type of equipment is often complex, resulting in large sizes for existing infrared welding systems. This also results in a long warm-up time before welding, making existing equipment only suitable for large-scale processing tasks. For smaller batches or testing of welded parts, this type of equipment is too expensive and inefficient. Utility Model Content

[0004] The main purpose of the utility model is to provide a testing device for detecting the strength of infrared welded parts, so as to at least solve the problem that the infrared welding devices in the prior art are difficult to be applied to pre-welding testing.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a testing device for detecting the strength of infrared welded parts, including a main cavity, a resistance wire, a thermocouple temperature sensor and a control mechanism; a mounting plate is provided at the lower part of the inner side of the main cavity; the resistance wire is arranged on the lower surface of the inner side of the main cavity; the thermocouple temperature sensor is arranged on the inner side wall of the main cavity; the control mechanism is arranged on the outer side of the main cavity and connected to the resistance wire and the thermocouple temperature sensor; wherein, the resistance wire heats the workpiece to be tested by emitting heat, and the thermocouple temperature sensor is used to detect the temperature inside the main cavity; the control mechanism is used to receive temperature information from the thermocouple temperature sensor and adjust the temperature of the resistance wire.

[0006] Furthermore, the control mechanism includes a control cabinet and a PLC controller; the control cabinet is arranged outside the main cavity; the PLC controller is arranged inside the control cabinet and connected to the resistance wire and the thermocouple temperature sensor, and the PLC controller is used to receive temperature information transmitted by the thermocouple temperature sensor and adjust the temperature of the resistance wire according to the temperature information.

[0007] Furthermore, the PLC controller includes a data processor, a thermocouple input end and a heating output end; the data processor is arranged in a control cabinet; the thermocouple input end is arranged in the control cabinet and connected to the data processor and the thermocouple temperature sensor; the heating output end is arranged in the control cabinet and connected to the data processor and the resistance wire; wherein the thermocouple input end inputs the signal transmitted by the thermocouple temperature sensor into the data processor, and the data processor adjusts the temperature of the resistance wire through the heating output end.

[0008] Furthermore, heating holes are provided on the mounting plate.

[0009] Furthermore, the mounting plate is made of fiberglass and epoxy resin plastic.

[0010] The test device for detecting the strength of infrared welded parts using the technical solution of the present invention includes a main cavity, a resistance wire, a thermocouple temperature sensor and a control mechanism; a mounting plate is provided at the lower portion of the inner side of the main cavity; the resistance wire is provided on the lower surface of the inner side of the main cavity; the thermocouple temperature sensor is provided on an inner side wall of the main cavity; the control mechanism is provided outside the main cavity and connected to the resistance wire and the thermocouple temperature sensor; wherein the resistance wire heats the workpiece to be tested by emitting heat, and the thermocouple temperature sensor is used to detect the temperature inside the main cavity; the control mechanism is used to receive temperature information from the thermocouple temperature sensor and adjust the temperature of the resistance wire, thereby solving the problem that infrared welding devices in the prior art are difficult to apply to pre-welding testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0012] Figure 1 This is a schematic structural diagram of a testing device for detecting the strength of infrared welded parts according to an embodiment of the present utility model;

[0013] The above drawings include the following reference numerals:

[0014] 10. Main cavity; 11. Mounting plate; 20. Resistance wire; 30. Thermocouple temperature sensor; 40. Control mechanism; 41. Control cabinet; 42. PLC controller; 421. Data processor; 422. Thermocouple input terminal; 423. Heating output terminal. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] According to the testing device for detecting the strength of infrared welding parts of the embodiment of the present invention, Figure 1 As shown, it includes a main cavity 10, a resistance wire 20, a thermocouple temperature sensor 30 and a control mechanism 40; a mounting plate 11 is provided at the lower portion of the inner side of the main cavity 10; the resistance wire 20 is provided on the lower surface of the inner side of the main cavity 10; the thermocouple temperature sensor 30 is provided on the inner wall of the main cavity 10; the control mechanism 40 is provided outside the main cavity 10 and is connected to the resistance wire 20 and the thermocouple temperature sensor 30; wherein, the resistance wire 20 heats the workpiece to be tested by emitting heat, and the thermocouple temperature sensor 30 is used to detect the temperature in the main cavity 10; the control mechanism 40 is used to receive the temperature information of the thermocouple temperature sensor 30 and adjust the temperature of the resistance wire 20; the device is mainly used for testing infrared welded parts before formal welding, avoiding the use of existing large-scale infrared welding equipment for testing The test leads to problems of high cost and low efficiency, and the test piece mainly needs to be tested whether it can withstand the high temperature during infrared heating and whether it will be affected in a continuous high temperature environment under exposure to the sun. In this device, the resistance wire 20 simulates the heating conditions of infrared welding, and the main cavity 10 is a sealed structure. After heating by the resistance wire 20, the high temperature will be maintained inside, simulating a continuous high temperature state, thereby meeting the testing requirements of the test piece; the control mechanism 40 serves as a control unit, which can continuously detect the temperature conditions in the main cavity 10, and adjust the temperature of the resistance wire 20 after analyzing the temperature data to test the ultimate strength of the test piece; at the same time, the present device directly performs heating operations in a single main cavity 10, which is different from the temperature zoning design of the existing device, reduces the volume, and has a simpler internal structure.

[0017] When implementing it specifically, Figure 1 As shown, the control mechanism 40 includes a control cabinet 41 and a PLC controller 42; the control cabinet 41 is arranged outside the main cavity 10; the PLC controller 42 is arranged inside the control cabinet 41 and is connected to the resistance wire 20 and the thermocouple temperature sensor 30, and the PLC controller 42 is used to receive the temperature information transmitted by the thermocouple temperature sensor 30 and adjust the temperature of the resistance wire 20 according to the temperature information.

[0018] When implementing it specifically, Figure 1As shown, the PLC controller 42 includes a data processor 421, a thermocouple input terminal 422 and a heating output terminal 423; the data processor 421 is arranged in the control cabinet 41; the thermocouple input terminal 422 is arranged in the control cabinet 41 and is connected to the data processor 421 and the thermocouple temperature sensor 30; the heating output terminal 423 is arranged in the control cabinet 41 and is connected to the data processor 421 and the resistance wire 20; wherein, the thermocouple input terminal 422 inputs the signal transmitted by the thermocouple temperature sensor 30 into the data processor 421, and the data processor 421 adjusts the temperature of the resistance wire 20 through the heating output terminal 423; the thermocouple temperature sensor 30 and the thermocouple input terminal 422 convert the detected temperature signal into a digital signal and transmit it to the data processor 421, and the data processor 421 then analyzes the received digital signal and increases and decreases the temperature of the resistance wire 20 according to the specific situation to achieve full control of the test temperature.

[0019] When implementing it specifically, Figure 1 As shown, heating holes are provided on the mounting plate 11 to facilitate heat transfer of the resistance wire 20 and to prevent the heating effect from being obstructed.

[0020] When implementing it specifically, Figure 1 As shown, the mounting plate 11 is made of glass fiber and epoxy resin plastic, which has high strength and good heat resistance.

[0021] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A testing device for detecting the strength of infrared welded parts, characterized in that: include: A main cavity (10), wherein a mounting plate (11) is provided at the lower portion of the inner side of the main cavity (10); a resistance wire (20), the resistance wire (20) being arranged on the lower surface inside the main cavity (10); a thermocouple temperature sensor (30), the thermocouple temperature sensor (30) being arranged on the inner side wall of the main cavity (10); a control mechanism (40), the control mechanism (40) being arranged outside the main cavity (10) and connected to the resistance wire (20) and the thermocouple temperature sensor (30); The resistance wire (20) heats the test piece by emitting heat, and the thermocouple temperature sensor (30) is used to detect the temperature in the main cavity (10); the control mechanism (40) is used to receive temperature information from the thermocouple temperature sensor (30) and adjust the temperature of the resistance wire (20).

2. The testing device for detecting the strength of infrared welded parts according to claim 1, characterized in that: The control mechanism (40) comprises: a control cabinet (41), the control cabinet (41) being arranged outside the main cavity (10); A PLC controller (42) is provided in the control cabinet (41) and is connected to the resistance wire (20) and the thermocouple temperature sensor (30). The PLC controller (42) is used to receive temperature information transmitted by the thermocouple temperature sensor (30) and adjust the temperature of the resistance wire (20) according to the temperature information.

3. The testing device for detecting the strength of infrared welded parts according to claim 2, characterized in that: The PLC controller (42) comprises: a data processor (421), the data processor (421) being arranged in the control cabinet (41); a thermocouple input terminal (422), the thermocouple input terminal (422) being arranged in the control cabinet (41) and connected to the data processor (421) and the thermocouple temperature sensor (30); a heating output end (423), the heating output end (423) being arranged in the control cabinet (41) and connected to the data processor (421) and the resistance wire (20); The thermocouple input end (422) inputs the signal transmitted by the thermocouple temperature sensor (30) into the data processor (421), and the data processor (421) adjusts the temperature of the resistance wire (20) through the heating output end (423).

4. The testing device for detecting the strength of infrared welded parts according to claim 1, characterized in that: The mounting plate (11) is provided with heating holes.

5. The testing device for detecting the strength of infrared welded parts according to claim 1, characterized in that: The material of the mounting plate (11) is glass fiber and epoxy resin plastic.

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