A rivet absence detection device

Abstract

The application relates to the rivet detection technical field, and particularly provides a rivet missing detection device, which comprises a box body, a jig groove for positioning and placing a workpiece is arranged on the upper surface of the box body; a detection mechanism, the detection mechanism comprises a first control unit arranged in the box body, a plurality of first sensors connected with the input end of the first control unit and arranged on the bottom surface of the jig groove and the rivet on the workpiece in a corresponding mode, and a display unit arranged on the upper surface of the box body and connected with the output end of the first control unit and used for displaying the detection state of the first sensor; the rivet missing detection device provided by the application can directly and synchronously detect the rivet on the workpiece, can indicate the position of the workpiece where the rivet is missing in real time, and can also facilitate an operator to quickly take away the workpiece when the detection work is completed, so that the device is quick and efficient to use and has high practicability.

Description

Technical Field

[0001] This utility model relates to the field of rivet detection technology, and in particular to a rivet missing detection device. Background Technology

[0002] Currently, the detection of the presence or absence of iron rivets on workpieces is mostly done manually or by visually photographing and comparing the results with existing samples. For mass production enterprises, manual rivet inspection is time-consuming, labor-intensive, and inefficient, while visual inspection is costly and has stringent environmental requirements. Changes in factory lighting conditions over time or due to weather can directly lead to visual errors and omissions, causing missing rivets to enter the next stage and compromising product quality.

[0003] To address the aforementioned problems, this application discloses a rivet missing detection device. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, this utility model discloses a rivet missing detection device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a rivet missing detection device, comprising: The box body has a fixture groove on its upper surface for positioning and inserting workpieces; The detection mechanism includes a first control unit located inside the housing, several first sensors connected to the input end of the first control unit and sequentially located on the bottom surface of the fixture slot corresponding to the rivets on the workpiece, and a display unit located on the upper surface of the housing and connected to the output end of the first control unit for displaying the detection status of the first sensors. The lifting mechanism includes a second control unit located inside the housing, a second sensor located on the upper surface of the housing and connected to the input end of the second control unit, a lifting drive unit located inside the housing and connected to the output end of the second control unit, a needle plate connected to the lifting drive unit and driven to rise and fall by it, and several ejector pins located on the upper surface of the needle plate and capable of passing through the housing to the fixture slot.

[0006] More preferably, the bottom surface of the fixture groove is provided with several clearance grooves for making way for the workpiece structure.

[0007] A further preferred embodiment is that a foolproof groove is provided on one side of the fixture groove.

[0008] More preferably, both the second control unit and the second control unit are single-chip microcomputer controllers.

[0009] More preferably, the first sensor is a metal sensor.

[0010] More preferably, the display unit includes a plurality of indicator lights, and the number of indicator lights is consistent with the number of the first sensors.

[0011] More preferably, the second sensor is a touch sensor.

[0012] More preferably, the housing has an internal support frame, and the lifting drive unit is mounted on the support frame.

[0013] More preferably, the lifting drive unit includes a screw stepper motor mounted on the bracket and connected to the output end of the second control unit, and the pin plate is connected to the screw shaft of the screw stepper motor.

[0014] More preferably, the bottom surface of the fixture groove has several through holes for the ejector pin to pass through.

[0015] This utility model achieves the following beneficial effects: The rivet missing detection device provided in this application can directly and synchronously detect rivets on the workpiece and can indicate in real time which position of the workpiece is missing a rivet. In addition, when the detection work is completed, it can also facilitate the operator to quickly remove the workpiece. It is quick and efficient to use and has strong practicality.

[0016] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure disclosed in this utility model; Figure 3 This is a control diagram of the first control unit disclosed in this utility model; Figure 4 This is a control diagram of the second control unit disclosed in this utility model; In the diagram: 10. Housing; 11. Fixture slot; 111. Clearance slot; 112. Foolproof slot; 113. Through hole; 20. Detection mechanism; 21. First control unit; 22. First sensor; 23. Display unit; 231. Indicator light; 30. Lifting mechanism; 31. Second control unit; 32. Second sensor; 33. Lifting drive unit; 331. Screw stepper motor; 34. Needle plate; 35. Ejector pin; 40. Bracket. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Example

[0021] To address the shortcomings of existing technologies that rely on visual cameras or human visual inspection for rivet loss detection, this paper refers to... Figures 1-4 As shown, this application discloses a rivet missing detection device, including a housing 10, a detection mechanism 20 and a lifting mechanism 30; The upper surface of the housing 10 is provided with a fixture groove 11 for positioning and inserting the workpiece. The bottom surface of the fixture groove 11 is provided with several clearance grooves 111 for making way for the workpiece's partial structure (only some clearance grooves are marked in the figure). One side of the fixture groove 11 is provided with a foolproof groove 112. In actual implementation, the operator presses the workpiece to be inspected into the fixture groove 11. The several clearance grooves 111 are used to make way for the partial position of the workpiece. In addition, the foolproof groove 112 can prevent the operator from placing the workpiece incorrectly. Note that the box 10 of this application is preferably made of non-metallic material, and in actual use, it is best to choose a box made of wood.

[0022] The detection mechanism 20 includes a first control unit 21 located inside the housing 10, several first sensors 22 connected to the input end of the first control unit 21 and sequentially arranged on the bottom surface of the fixture slot 11 corresponding to the rivets on the workpiece, and a display unit 23 located on the upper surface of the housing 10 and connected to the output end of the first control unit 21 for displaying the detection status of the first sensors 22. The first sensors 22 are preferably metal sensors. The display unit 23 includes several indicator lights 231, and the number of indicator lights 231 is consistent with the number of first sensors 22. After the workpiece is pressed into the fixture slot 11, the several first sensors 22 will synchronously detect each rivet on the workpiece, and the several first sensors 22 will send the detection status to the first control unit 21, which will control the several indicator lights 231 to display the detection results. Note that several indicator lights 231 correspond to several first sensors 22. If a first sensor 22 detects a rivet, the corresponding indicator light 231 will light up. Conversely, if a first sensor 22 does not detect a rivet, the corresponding indicator light 231 will not light up.

[0023] In addition, it should be noted that the lighting time of the several indicator lights 231 in this application is a set time, and they will automatically turn off after the set time. For example, the first control unit 21 can control the lighting time of the several indicator lights 231 to be 10 seconds or 15 seconds.

[0024] The lifting mechanism 30 includes a second control unit 31 located inside the housing 10, a second sensor 32 located on the upper surface of the housing 10 and connected to the input terminal of the second control unit 31, a lifting drive unit 33 located inside the housing 10 and connected to the output terminal of the second control unit 31, a needle plate 34 connected to the lifting drive unit 33 and driven to rise and fall by it, and several ejector pins 35 located on the upper surface of the needle plate 34 and passing through the housing 10 to the fixture slot 11. The bottom surface of the fixture slot 11 has several through holes 113 for the ejector pins 35 to pass through. The second sensor 32 is a touch sensor. After the rivet missing detection of the above workpiece is completed, the operator can operate the second sensor 32 to make the second control unit 31 control the lifting drive unit 33 to drive several ejector pins 35 on the ejector pin plate 34 to rise and pass through several through holes 113. At this time, the workpiece located in the jig slot 11 will be quickly lifted, and the operator can take the workpiece away. In addition, when the operator operates the second sensor 32 again, the second control unit 31 can control the lifting drive unit 33 to drive several ejector pins 35 on the ejector pin plate 34 to rise and fall. In this way, the operator can put the next workpiece into the jig slot 11.

[0025] Specifically, both the second control unit 31 and the second control unit 31 in this application are single-chip microcomputer controllers.

[0026] In addition to the above structure, this application also provides a bracket 40 inside the housing 10, and a lifting drive unit 33 is provided on the bracket 40. More preferably, the lifting drive unit 33 includes a screw stepper motor 331 provided on the bracket 40 and connected to the output end of the second control unit 31. The needle plate 34 is connected to the screw shaft of the screw stepper motor 331. After the operator touches the second sensor 32, the second control unit 31 will control the screw stepper motor 331 to drive the needle plate 34 to rise or fall.

[0027] Furthermore, it should be noted that all electrical components involved in this application are known technologies and can be directly obtained by those skilled in the art from the market, and will not be described in detail here.

[0028] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A rivet missing detection device, characterized in that, include: The box body has a fixture groove on its upper surface for positioning and inserting workpieces; The detection mechanism includes a first control unit located inside the housing, several first sensors connected to the input end of the first control unit and sequentially located on the bottom surface of the fixture slot corresponding to the rivets on the workpiece, and a display unit located on the upper surface of the housing and connected to the output end of the first control unit for displaying the detection status of the first sensors. The lifting mechanism includes a second control unit located inside the housing, a second sensor located on the upper surface of the housing and connected to the input end of the second control unit, a lifting drive unit located inside the housing and connected to the output end of the second control unit, a needle plate connected to the lifting drive unit and driven to rise and fall by it, and several ejector pins located on the upper surface of the needle plate and capable of passing through the housing to the fixture slot.

2. The rivet missing detection device according to claim 1, characterized in that, The bottom surface of the fixture groove is provided with several clearance grooves to allow space for parts of the workpiece structure.

3. The rivet missing detection device according to claim 1, characterized in that, A foolproof groove is provided on one side of the fixture slot.

4. The rivet missing detection device according to claim 1, characterized in that, Both the second control unit and the second control unit are single-chip microcomputer controllers.

5. The rivet missing detection device according to claim 1, characterized in that, The first sensor is a metal sensor.

6. The rivet missing detection device according to claim 1, characterized in that, The display unit includes several indicator lights, and the number of indicator lights is consistent with the number of the first sensors.

7. The rivet missing detection device according to claim 1, characterized in that, The second sensor is a touch sensor.

8. The rivet missing detection device according to claim 1, characterized in that, The housing is equipped with a support frame, and the lifting drive unit is mounted on the support frame.

9. A rivet missing detection device according to claim 8, characterized in that, The lifting drive unit includes a screw stepper motor mounted on a bracket and connected to the output end of the second control unit, and the pin plate is connected to the screw shaft of the screw stepper motor.

10. A rivet missing detection device according to claim 1, characterized in that, The bottom surface of the fixture groove has several through holes for the ejector pin to pass through.

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