Device for detecting height of screw

Abstract

The utility model discloses a device for detecting the height of a screw. The device is characterized by comprising a touch screen, a rotary pressing cylinder, a positioning jig, a proximity detection switch, a lifting cylinder mechanism, a micrometer and a workbench, a positioning jig is fixedly installed on the table top of the working table, a proximity detection switch is arranged at the bottom of the positioning jig, a rotary pressing air cylinder is fixedly installed on the table top of the working table and located on the rear side of the positioning jig, and a lifting air cylinder mechanism is fixedly installed on the table top of the working table and located on the rear side of the positioning jig. The lifting air cylinder mechanism is installed on the workbench and located on the right side of the rotary pressing air cylinder, the micrometer is installed on the left side of the lifting air cylinder mechanism, the testing end of the micrometer is correspondingly located above a to-be-detected screw on the workpiece, and the touch screen is fixedly installed on the upper left corner of the workbench. The device is simple in structure and intelligent in operation; the measured value is quantized, and the screwing height condition of the screw is detected through the micrometer, so that a'floating lock 'workpiece is prevented from entering production.

Description

Technical Field

[0001] The utility model belongs to the field of detection technology, and in particular relates to a device for detecting the height of a screw. Background Art

[0002] Many components in automotive electronics require two items to be fastened together by screws. In actual production, sometimes the electric screwdriver stops tightening the screws at the set torque, but the screws cannot be tightened tightly due to misaligned teeth, or the spring washer presses the workpiece with its elastic force, but the screw cap is not really in place. This is called "floating lock" in the industry, so there is an urgent need for a device to detect the height of the screws. Utility Model Content

[0003] The utility model mainly aims to overcome the deficiencies of the prior art and provides a device for detecting the height of a screw.

[0004] The utility model is realized by the following technical solutions:

[0005] A device for detecting screw height, comprising a touch screen, a rotary pressing cylinder, a positioning fixture, a proximity detection switch, a lifting cylinder mechanism, a micrometer and a workbench;

[0006] A positioning jig is fixedly installed on the surface of the workbench, and a proximity detection switch is arranged at the bottom of the positioning jig. A rotating clamping cylinder is fixedly installed on the surface of the workbench and is located on the rear side of the positioning jig. A lifting cylinder mechanism is fixedly installed on the surface of the workbench and is located on the right side of the rotating clamping cylinder. The micrometer is installed on the left side of the lifting cylinder mechanism. The test end of the micrometer is correspondingly located above the screw to be tested on the workpiece. The touch screen is fixedly installed on the workbench and is used to display the reading of the micrometer.

[0007] In the above technical solution, the lifting cylinder mechanism is installed on the workbench through a mounting plate.

[0008] In the above technical solution, the micrometer is installed on the left side of the lifting cylinder mechanism through a connecting beam.

[0009] In the above technical solution, handrails are symmetrically arranged on both sides of the workbench to facilitate the movement of the device.

[0010] The advantages and beneficial effects of the utility model are:

[0011] The utility model has a simple structure and intelligent operation; the measured value is quantified and the accuracy is high; the quantity is managed in sections to improve the quality; and the tightening height of the screw is detected by a micrometer to avoid the "floating lock" workpiece from flowing into the production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 A schematic diagram of the structure of the micrometer detecting the state of the reference height block.

[0014] Figure 3 A schematic structural diagram of a state in which a workpiece is placed in a device for detecting screw height.

[0015] Figure 4 Schematic diagram of the structure of the micrometer detecting the state of the workpiece.

[0016] In the figure, touch screen 1, rotary clamping cylinder 2, positioning fixture 3, proximity detection switch 4, lifting cylinder mechanism 5, connecting beam 5.1, mounting plate 5.2, micrometer 6, test terminal 6.1, workbench 7, handrail 8, reference height block a, workpiece b.

[0017] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0019] A device for detecting the height of a screw, see attached Figure 1-4 , including a touch screen 1, a rotary pressing cylinder 2, a positioning fixture 3, a proximity detection switch 4, a lifting cylinder mechanism 5, a micrometer 6 and a workbench 7.

[0020] A positioning jig 3 is fixedly installed on the surface of the workbench 7, and a proximity detection switch 4 is arranged at the bottom of the positioning jig 3. A rotating clamping cylinder 2 is fixedly installed on the surface of the workbench 7 and is located on the rear side of the positioning jig 3. A lifting cylinder mechanism 5 is fixedly installed on the surface of the workbench 7 and is located on the right side of the rotating clamping cylinder 2. The micrometer 6 is installed on the left side of the lifting cylinder mechanism 5 through a connecting beam 5.1. The test end 6.1 of the micrometer 6 corresponds to the top of the screw to be tested on the workpiece b. The micrometer 6 is used to detect the screw height of the workpiece b. The touch screen 1 is fixedly installed on the upper left corner of the workbench 7, and the touch screen 1 is used to display the reading of the micrometer 6.

[0021] Wherein, handrails 8 are symmetrically arranged on both sides of the workbench 7 to facilitate the movement of the device.

[0022] The lifting cylinder mechanism 5 is installed on the workbench 7 via a mounting plate 5.2.

[0023] The detection method of the device for detecting screw height of the utility model is as follows:

[0024] Step 1: First put the reference height block a into the positioning fixture 3, press it tightly, and then the lifting cylinder mechanism 5 moves down to the limit position. The micrometer 6 contacts the reference height block a, click the touch screen 1 to calibrate to zero, and read the reference 0 value.

[0025] Step 2: Put the workpiece b into the positioning fixture 3, and the heat sink of the workpiece b approaches the proximity detection switch 4 at the bottom of the positioning fixture 3, triggering the signal. The rotating clamping cylinder 2 automatically presses down after a delay of 1s. After being clamped in place, it triggers the magnetic ring signal of the lifting cylinder mechanism 5. The lifting cylinder mechanism 5 drives the micrometer 6 to move down to the limit column. The micrometer 6 contacts the screw of the workpiece b, automatically reads the value, and feeds it back to the touch screen 1. If it does not exceed the set tolerance, it is a normal product. Then it is opened in reverse in sequence to take away the workpiece b. If it exceeds the tolerance, an alarm will be issued to lock the clamping state and report to the person with higher authority to release the defective product.

[0026] Step 3: Take away workpiece b and start the next operation cycle. The electronic control system has a counting function. Each time the number of a standard box is met, it will prompt the "packing completed" lock state. Manually check that it is correct and reset it to zero to start the operation of a new standard box.

[0027] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0028] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0029] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.

Claims

1. A device for detecting screw height, characterized in that: It includes a touch screen, a rotary clamping cylinder, a positioning fixture, a proximity detection switch, a lifting cylinder mechanism, a micrometer and a workbench; A positioning jig is fixedly installed on the surface of the workbench, and a proximity detection switch is arranged at the bottom of the positioning jig. A rotating clamping cylinder is fixedly installed on the surface of the workbench and is located on the rear side of the positioning jig. A lifting cylinder mechanism is fixedly installed on the surface of the workbench and is located on the right side of the rotating clamping cylinder. The micrometer is installed on the left side of the lifting cylinder mechanism. The test end of the micrometer is correspondingly located above the screw to be tested on the workpiece. The touch screen is fixedly installed on the workbench and is used to display the reading of the micrometer.

2. A device for detecting screw height according to claim 1, characterized in that: The lifting cylinder mechanism is installed on the workbench through a mounting plate.

3. The device for detecting screw height according to claim 1, characterized in that: The micrometer is mounted on the left side of the lifting cylinder mechanism through a connecting beam.

4. The device for detecting screw height according to claim 1, characterized in that: Handrails are symmetrically arranged on both sides of the workbench.

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