High-precision handle detection device

Abstract

A high-precision handle detection device is characterized in that one end of a handle is rotationally connected with a to-be-detected product, the other end of the handle is connected with the to-be-detected product in a buckled mode, the handle has an open state and a buckled state, the handle detection device comprises a detection table, and a product positioning structure and a handle detection assembly are arranged on the detection table; the handle detection assembly comprises a linear driving mechanism and a roller structure connected to the driving end of the linear driving mechanism, under driving of the linear driving mechanism, the roller structure pushes the handle in the open state to the buckled state, and the roller structure is in rolling fit with the handle; the handle detection assembly further comprises a pressure sensor which is arranged between the rolling wheel structure and the driving end and used for detecting the pressure value of the handle from the opening state to the buckling state. The device simulates the operation of manually detecting the quality of the handle, pushes the handle by using the cylinder, applies pressure to the handle to detect whether the handle can be normally buckled or not, and judges a fault point according to a pressure display value, thereby controlling the quality condition of the handle.

Description

Technical Field

[0001] The utility model relates to the field of handle detection devices, in particular to a high-precision handle detection device. Background Art

[0002] The handle of a sheet metal assembly product is a rotating opening and closing handle, one end of which is connected to the sheet metal component by a torsion spring, and the other end can be connected to the sheet metal component by a lock. When the handle is open, it forms a certain angle with the sheet metal component. Currently, the smoothness of the handle closure is judged by human perception. Due to the variability in human force, the consistency of product quality cannot be guaranteed, and the work efficiency is low. Therefore, this utility model proposes a high-precision handle detection device. Utility Model Content

[0003] The purpose of the utility model is to provide a high-precision handle detection device.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is: a high-precision handle detection device, wherein one end of the handle is rotatably connected to the product to be tested and the other end is snap-connected to the product to be tested, and the handle includes an open state and a snap-connected state. The handle detection device includes a detection platform, on which a product positioning structure and a handle detection component are provided;

[0005] The handle detection assembly includes a linear drive mechanism and a roller structure connected to a driving end of the linear drive mechanism. Under the drive of the linear drive mechanism, the roller structure pushes the handle in the open state to the engaged state, and the roller structure and the handle are in rolling cooperation.

[0006] The handle detection assembly further includes a pressure sensor disposed between the roller structure and the driving end for detecting the pressure value of the handle from the open state to the closed state. The pressure sensor is electrically connected to a pressure reading device.

[0007] Preferably, the product positioning structure includes a plurality of guide blocks, each of which is arranged in close contact with an edge of the product to be tested.

[0008] Preferably, the testing platform is provided with a first proximity switch for detecting the position of the product to be tested, and the first proximity switch is arranged at the edge of the product to be tested.

[0009] Preferably, a handle guide block is provided on the detection platform, and a second proximity switch for detecting the open state of the handle is provided on the handle guide block, and the handle guide block is in contact with the outer side wall of the handle in the open state.

[0010] Preferably, the linear drive mechanism adopts a cylinder.

[0011] Further preferably, the cylinder is provided with a magnetic induction switch for detecting the cylinder stroke.

[0012] Further preferably, the air circuit system of the cylinder is provided with a digital pressure switch for detecting the air supply pressure and a pressure regulating valve for regulating the air pressure.

[0013] Preferably, the pressure reading device includes a display, and the display is fixedly arranged on the testing platform.

[0014] Further preferably, a PLC controller is further included, wherein the input end of the PLC controller is electrically connected to the display, the first proximity switch, the second proximity switch and the magnetic induction switch, and the output end of the PLC controller is electrically connected to an alarm.

[0015] The working principle and advantages of this utility model are as follows:

[0016] The utility model simulates the manual operation of checking the quality of the handle, uses a cylinder to push the handle, and checks whether the handle can be fastened normally by applying pressure to the handle. The fault point is determined according to the pressure display value, thereby controlling the quality of the handle;

[0017] The utility model adopts a roller structure to push the handle. On the one hand, it can prevent the friction generated by the roller structure pressing the handle to move from interfering with the actual pressure, thereby ensuring the accuracy of the test data; on the other hand, it can avoid directly pushing the handle to wear the handle surface and affect product quality.

[0018] The utility model can ensure the accuracy of detection data by sensing the position of the product to be detected and the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 This is a top view of the handle test of an embodiment of the present utility model;

[0020] Attachment Figure 2 A top view of a testing platform according to an embodiment of the present invention;

[0021] Attachment Figure 3 This is a front view of the handle test of an embodiment of the present utility model;

[0022] Attachment Figure 4 This is a side view of the handle test of an embodiment of the present invention.

[0023] In the above attached figures:

[0024] 100. Handle; 200. Product to be tested;

[0025] 1. Inspection table; 2. Product positioning structure; 3. Handle detection assembly; 31. Linear drive mechanism; 32. Roller structure; 33. Pressure sensor; 34. Pressure reading device; 35. Digital pressure switch; 36. Pressure regulating valve; 4. First proximity switch; 5. PLC controller; 6. Alarm; 7. Second proximity switch; 8. Handle guide block; 9. Start button; 10. Power switch; 11. Emergency stop button. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0028] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0029] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0030] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0031] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.

[0032] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.

[0033] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0034] See attached Figure 1-4As shown, a high-precision handle 100 detection device is provided. One end of the handle 100 is rotatably connected to the product to be tested 200, and a torsion spring is provided at the rotational connection. The other end is engaged with a buckle on the product to be tested 200. The handle 100 includes an open state and a buckled state. The handle 100 detection device includes a detection platform 1, on which a product positioning structure 2 and a handle detection component 3 are provided.

[0035] When inspecting the handle 100 , the product 200 to be inspected needs to be placed on the inspection platform 1 and positioned by the product positioning structure 2 so that the handle inspection component 3 can inspect the handle 100 of the product 200 to be inspected.

[0036] See attached Figure 1-2 As shown, the product positioning structure 2 includes a plurality of guide blocks, each of which is arranged in close contact with the edge of the product to be tested 200 . The product to be tested 200 can be horizontally limited by each guide block so as to detect the handle 100 .

[0037] In addition, in order to ensure the accuracy of the test results, it is necessary to test the position of the product 200 and its handle 100. The specific structural design is as follows:

[0038] The testing platform 1 is provided with a first proximity switch 4 for detecting whether the product to be tested 200 is in place. The first proximity switch 4 is arranged at the edge of the product to be tested 200. The output end of the first proximity switch 4 is electrically connected to the PLC controller 5, and the output end of the PLC controller 5 is electrically connected to an alarm 6. The alarm 6 can be a three-color light buzzer. When the first proximity switch 4 senses that the product to be tested 200 is in place, it sends a sensing signal to the PLC controller 5, and the PLC controller 5 controls the three-color light buzzer to provide a light prompt.

[0039] A handle guide block 8 is provided on the detection platform 1, and a second proximity switch 7 for detecting the open state of the handle 100 is provided on the handle guide block 8. The handle guide block 8 is in contact with the outer wall of the handle 100 in the open state; the output end of the second proximity switch 7 is electrically connected to the PLC controller 5. When the second proximity switch 7 senses that the handle 100 is in place, the sensing signal is sent to the PLC controller 5, and the PLC controller 5 controls the three-color light buzzer to provide a light prompt.

[0040] See attached Figure 1 and Figure 3-4 As shown, the handle detection assembly 3 includes a linear drive mechanism 31 and a roller structure 32 connected to the driving end of the linear drive mechanism 31. Under the drive of the linear drive mechanism 31, the roller structure 32 pushes the handle 100 in the open state to the engaged state, and the roller structure 32 and the handle 100 are in rolling cooperation.

[0041] The handle detection assembly 3 further includes a pressure sensor 33 disposed between the roller structure 32 and the driving end for detecting the pressure value of the handle 100 from the open state to the closed state. The pressure sensor 33 is electrically connected to a pressure reading device 34.

[0042] In this embodiment, the linear drive mechanism 31 is driven by a cylinder, which is controlled by a start button 9 . In other embodiments, the linear drive mechanism 31 may also be driven by a servo motor, such as a lead screw.

[0043] In this embodiment, the cylinder is provided with a magnetic induction switch (not shown in the figure) for detecting the cylinder stroke, and the cylinder and the magnetic induction switch are electrically connected to the PLC controller 5 .

[0044] In this embodiment, the air circuit system of the cylinder is provided with a digital pressure switch 35 for detecting the air supply pressure and a pressure regulating valve 36 for adjusting the air pressure, both of which are fixed on the detection platform 1; when the cylinder is running, the digital pressure switch 35 can detect and display the air circuit pressure of the cylinder. When the air pressure exceeds the appropriate range, the air circuit pressure can be controlled by the pressure regulating valve 36 to ensure stable operation of the cylinder.

[0045] In this embodiment, the pressure reading device 34 includes a display fixedly mounted on the test platform 1, with its output connected to the input of the PLC controller 5. The pressure value measured by the pressure sensor 33 is sent to the display for display. The PLC controller 5 obtains the pressure value from the display and compares it with a preset pressure threshold. Based on the pressure value, the fault point can be determined, thereby monitoring the quality of the handle 100.

[0046] The control principle, control method and communication of the PLC controller 5 are existing technologies and are mature technologies that can be mastered by those skilled in the art. The control and communication between the PLC controller 5 and the cylinders, sensors, etc. are also widely used in the existing technologies. Since they are not the invention points of this case, they will not be elaborated in this case.

[0047] In this embodiment, the roller structure 32 adopts a rubber-coated bearing.

[0048] In this embodiment, a power supply is also provided in the testing platform 1 to supply power to the above components. A power switch 10 and an emergency stop button 11 are provided on the testing platform 1 so as to shut down the entire device at any time.

[0049] In this embodiment, the steps for inspecting the handle 100 of the sheet metal assembly product are as follows:

[0050] Step 1: Place the sheet metal assembly product, open the handle 100, and after the first proximity switch 4 and the second proximity switch 7 are sensed, the PLC controller 5 controls the yellow light of the three-color light buzzer to light up;

[0051] Step 2: Press the start button;

[0052] 1) The cylinder extends, and the roller structure 32 presses the product handle 100 into the buckle, that is, applies pressure to the handle 100 to detect whether the handle 100 can be normally buckled. When the magnetic induction switch is turned on, the cylinder is in place and stops extending; during the pressure application, the pressure sensor 33 detects the pressure value in real time, and the PLC controller 5 determines the fault point based on the pressure value, thereby controlling the quality of the handle 100; when the pressure meets the requirement, the PLC controller 5 controls the green light of the three-color light buzzer to light up, and the inspection is passed. The PLC controller 5 controls the cylinder to return and take out the product.

[0053] 2) The cylinder extends, and the roller structure 32 pushes the product handle 100. When the pressure exceeds the pressure threshold, the PLC controller 5 controls the cylinder to return and at the same time controls the red light of the three-color light buzzer to light up and alarm. It can be accompanied by a sound alarm. If the inspection fails, the product is taken out and the alarm is reset.

[0054] 3) The cylinder extends, the magnetic induction switch is not connected, and the delay is 1 second. The PLC controller 5 controls the cylinder to return. The red light of the three-color light buzzer lights up to alarm. The inspection fails. The product is taken out and the alarm is reset.

[0055] Step 3: Press the emergency stop button, the cylinder returns, and the red light of the three-color light buzzer lights up to alarm.

[0056] When inspecting the handle 100, the roller structure 32 is used to push the tilted handle 100. On the one hand, this can prevent the friction generated by the roller structure 32 pressing the handle 100 to move from interfering with the actual pressure, thereby ensuring the accuracy of the inspection data; on the other hand, it can avoid directly pushing the handle 100 and wearing the surface of the handle 100, thereby affecting product quality.

[0057] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A high-precision handle detection device, wherein one end of the handle is rotatably connected to the product to be tested and the other end is snap-connected to the product to be tested, and the handle includes an open state and a snap-connected state, characterized in that: The handle detection device includes a detection platform, on which a product positioning structure and a handle detection component are provided; The handle detection assembly includes a linear drive mechanism and a roller structure connected to a driving end of the linear drive mechanism. Under the drive of the linear drive mechanism, the roller structure pushes the handle in the open state to the engaged state, and the roller structure and the handle are in rolling cooperation. The handle detection assembly further includes a pressure sensor disposed between the roller structure and the driving end for detecting the pressure value of the handle from the open state to the closed state. The pressure sensor is electrically connected to a pressure reading device.

2. A high-precision handle detection device according to claim 1, characterized in that: The product positioning structure includes a plurality of guide blocks, each of which is arranged in close contact with the edge of the product to be tested.

3. The high-precision handle detection device according to claim 1, characterized in that: The detection table is provided with a first proximity switch for detecting the position of the product to be detected. The first proximity switch is arranged at the edge of the product to be detected.

4. The high-precision handle detection device according to claim 3, characterized in that: The detection platform is provided with a handle guide block, on which a second proximity switch for detecting the open state of the handle is provided. The handle guide block is in contact with the outer side wall of the handle in the open state.

5. The high-precision handle detection device according to claim 4, characterized in that: The system further comprises a PLC controller, wherein an input end of the PLC controller is electrically connected to the pressure sensor, the first proximity switch and the second proximity switch, and an output end of the PLC controller is electrically connected to an alarm.

6. The high-precision handle detection device according to claim 1, characterized in that: The linear drive mechanism adopts a cylinder.

7. The high-precision handle detection device according to claim 6, characterized in that: The air circuit system of the cylinder is provided with a digital pressure switch for detecting the air supply pressure and a pressure regulating valve for regulating the air pressure.

8. The high-precision handle detection device according to claim 1, characterized in that: The pressure reading device includes a display, and the display is fixedly arranged on the detection platform.

Images