An automatic deformation degree detection device

Abstract

This invention is an automatic deformation detection device for measuring the deformation of thin-shell plastic or metal parts. It includes: a base, a first detection device fixedly mounted on the surface of the base, and a second detection device fixedly mounted on the surface of the base opposite to the first detection device. The first detection device includes a fixed platform for supporting the product and a plug gauge device for detecting the gaps between the four sides of the product and a reference plane. The plug gauge device includes a first driving device and a plug gauge for detecting the gaps between the four sides of the product and the reference plane in a go-no-go manner. The second detection device includes a second driving device and detection probes for detecting the height of the four corners of the product relative to the reference plane. The device automatically detects the deformation of the product, preventing deviations in measurement results due to operator fatigue, variations in measurement techniques and skill levels, thus avoiding over-crimping of good products and increased costs, or missed crimping of defective products and customer complaints.

Description

[Technical Field]

[0001] This invention relates to the field of testing equipment technology, and in particular to an automatic deformation detection device. [Background Technology]

[0002] Currently, laptop casings are mostly made of metal or plastic. These casings are generally thin, and the inspection items after molding include deformation testing. The deformation of the casing is generally divided into positive deformation and negative deformation.

[0003] Currently, deformation testing is conducted using a combination of gauges and plug gauges. The inspector places the workpiece to be tested on the gauge, then holds the plug gauge to measure the deformation of the shell and visually inspects the warping of the workpiece. However, manual measurement by the inspector can lead to deviations in the measurement results due to mental fatigue, differences in actual measurement techniques and proficiency. Furthermore, visual inspection lacks numerical basis, which can result in the over-criticization of good products, increasing costs, or the omission of defective products, leading to customer complaints. [Summary of the Invention]

[0004] The technical problem to be solved by this invention is that the deformation of the outer shell is generally divided into positive deformation and negative deformation. Manual measurement by inspectors may result in deviations in measurement results due to mental fatigue, differences in actual measurement methods and proficiency. Furthermore, visual inspection lacks numerical basis, leading to the over-discarding of good products, which increases costs, or the failure to discard defective products, which results in customer complaints.

[0005] The solution to the technical problem of this invention is: an automatic deformation detection device for measuring the deformation of thin-shell plastic or metal parts, comprising: a base, a first detection device, and a second detection device;

[0006] The first detection device is fixedly mounted on the platform of the pedestal, and the second detection device is fixedly mounted on the platform of the pedestal on the side opposite to the first detection device.

[0007] The first testing device includes a fixed platform for supporting the product and a plug gauge device for detecting the gaps between the four sides of the product and a reference plane. The plug gauge device is detachably connected to the plane of the fixed platform.

[0008] The plug gauge device includes a first drive device and a plug gauge for detecting the gaps between the four sides of the product and a reference plane in a go-no-go manner. The first drive device is connected to the plug gauge to drive the plug gauge to move relative to the product being inspected.

[0009] The second detection device includes a second driving device and detection probes for detecting the height of the four corners of the product relative to a reference plane. The second driving device is connected to the detection probes to drive the detection probes to move relative to the product being detected.

[0010] The platform includes a controller, which is electrically connected to both the first drive device and the second drive device.

[0011] Preferably, the plug gauge device further includes: a connector, a sensing plate, and a position sensor;

[0012] The movable end of the first driving device is fixedly connected to one end of the connector, and the other end of the connector clamps and fixes the plug gauge. The position sensor is fixedly connected to the plane of the fixed platform on one side of the connector. One end of the sensing plate is fixedly connected to the connector, and the other end of the sensing plate extends toward the position sensor.

[0013] Preferably, the first driving device includes a double-acting pneumatic cylinder.

[0014] Preferably, the fixed platform further includes at least one right-angle positioning block, which is fixedly disposed on the plane of the fixed platform.

[0015] Preferably, the second detection device further includes a bracket, a guide assembly, and a connecting plate;

[0016] The fixed end of the second driving device is fixedly connected to the bracket, the guide assembly is fixedly connected to the bracket on one side relative to the second driving device, the movable end of the second driving device and the movable end of the guide assembly are fixedly connected to one side of the connecting plate, and at least one detection probe is fixedly connected to the other side of the connecting plate, with one end of the detection probe extending toward the product.

[0017] Preferably, the guiding assembly includes a guide post and a linear bearing.

[0018] Preferably, the detection probe includes a contact displacement sensor.

[0019] Preferably, the second drive device includes a double-acting pneumatic cylinder.

[0020] Preferably, a human-machine interface touch screen for displaying and setting device parameters is fixedly provided on one side of the pedestal, and the human-machine interface touch screen is electrically connected to both the first detection device and the second detection device.

[0021] The beneficial effect of this invention is that, through the measurement of the first and second detection devices, the device automatically detects the deformation of the product, and will not produce deviations in measurement results due to the mental fatigue of the detection personnel, differences in actual measurement methods and proficiency, thus avoiding the over-criticization of good products, which would increase costs, or the failure to detect defective products, which would lead to customer complaints. [Attached Image Description]

[0022] Figure 1This is a schematic diagram of the automatic deformation detection device.

[0023] Figure 2 This is a schematic diagram of the product's forward and reverse deformation structures.

[0024] Figure 3 This is a schematic diagram of the first detection device.

[0025] Figure 4 This is a schematic diagram of the plug gauge device.

[0026] Figure 5 This is a schematic diagram of the second detection device.

Detailed Implementation Methods

[0027] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0028] like Figure 1 and Figure 2 As shown, an automatic deformation detection device is used to measure the deformation of a thin-shell plastic or metal part product 100, including: a base 101, a first detection device 200, and a second detection device 300.

[0029] In this embodiment, product 100 is a square thin-shell plastic part, and product 100 may have two situations: positive deformation 104 and negative deformation 105. It is necessary to detect the four sides and four corners of product 100 relative to the reference plane 106.

[0030] A first detection device 200 is fixedly installed on the platform of the pedestal 101, and a second detection device 300 is fixedly installed on the platform of the pedestal 101 on the side opposite to the first detection device 200.

[0031] The first detection device 200 is used to detect the positive deformation 104 of the product 100 by detecting the gaps between the four sides of the product 100 and the reference plane 106.

[0032] The second detection device 300 is used to carry the product and detect the reverse deformation 105 of the product 100 by measuring the height of the four corners of the product 100 relative to the reference plane 106.

[0033] The base 101 includes a human-machine touch screen 102 for displaying and setting device parameters and a controller 103. In this embodiment, the controller 103 is selected as a control button and is electrically connected to the first drive device 211 and the second drive device 302.

[0034] like Figure 3 and Figure 4 As shown, the first detection device 200 includes: a fixed platform 201 and at least one set of plug gauge devices 210;

[0035] The plug gauge device 210 includes a first drive device 211 and a plug gauge 212 for detecting the gaps of the four sides of the product 100 relative to the reference plane 106 in a go-no-go manner. The first drive device is connected to the plug gauge to drive the plug gauge to move relative to the product 100 being inspected.

[0036] In this embodiment, four sets of plug gauge devices 210 are used, and they are respectively set at the middle position of the four sides of the fixed platform 201 and detachably connected to the plane of the fixed platform 201.

[0037] The fixed stage 201 is used to support the product 100 and the plane on which it supports is used as a detection reference plane. The fixed stage 201 also includes at least one right-angle positioning block 202.

[0038] The right-angle positioning block 202 is used to position the product 100. In this embodiment, four right-angle positioning blocks 202 are used and are fixedly set relative to the four corners of the fixed platform 201.

[0039] The plug gauge device 210 also includes a connector 213, a sensing plate 214, and a position sensor 215. The movable end of the first drive device 211 is fixedly connected to one end of the connector 213, and the other end of the connector 213 clamps and fixes the plug gauge 212. The position sensor 215 is fixedly connected to the plane of the fixed platform 201 on one side relative to the connector 213. One end of the sensing plate 214 is fixedly connected to the connector 213, and the other end of the sensing plate 214 extends toward the position sensor 215. In this embodiment, the first drive device 211 is a reciprocating pneumatic cylinder, and the position sensor 215 is a fork-type photoelectric sensor.

[0040] During the inspection process, the first driving device 211 drives the plug gauge 212 to extend towards the product 100. If the plug gauge 212 is blocked by the product 100 and cannot pass through, the position sensor 215 will not output a signal, and the product 100 will be considered a good product. Conversely, if the plug gauge 212 is not blocked by the product 100 and passes through smoothly, the position sensor 215 will output a signal, and the product 100 will be considered a defective product.

[0041] like Figure 5 As shown, the second detection device 300 includes a second driving device 302 and detection probes 304 for detecting the height of the four corners of the product 100 relative to the reference plane 106. The second driving device 302 is connected to the detection probes 304 to drive the detection probes 304 to move relative to the product 100.

[0042] The second detection device 300 also includes a bracket 301, a guide assembly 310, and a connecting plate 303. The fixed end of the second drive device 302 is fixedly connected to the bracket 301. In this embodiment, the second drive device 302 is a double-acting pneumatic cylinder. The guide assembly 310 is fixedly connected to the bracket 301 on one side relative to the second drive device 302. In this embodiment, the guide assembly 310 includes a guide post 311 and a linear bearing 312. The guide post 311 is slidably connected to the linear bearing 312. The movable end of the second drive device 302 and the movable end of the guide assembly 310 are fixedly connected to one side of the connecting plate 303. A detection probe 304 is fixedly connected to the other side of the connecting plate 303. One end of the detection probe 304 extends toward the product. In this embodiment, the detection probe 304 is four contact displacement sensors, which are respectively set at the four corners of the connecting plate 303.

[0043] During the testing process, the second driving device 302 drives the detection probe 304 to approach the product 100. If the displacement value detected by the detection probe 304 is within the set range, the product 100 is considered a good product. If the displacement value detected by the detection probe 304 is outside the set range, the product 100 is considered a defective product.

[0044] The workflow of this invention is as follows: the product is placed on the fixed platform 201 and positioned by the right-angle positioning block 202. The device is started by the control button 103, and the first detection device and the second detection device operate simultaneously to complete the detection.

[0045] The beneficial effect of this invention is that, through the measurement of the first and second detection devices, the device automatically detects the deformation of the product, and will not produce deviations in measurement results due to the mental fatigue of the detection personnel, differences in actual measurement methods and proficiency, thus avoiding the over-criticization of good products, which would increase costs, or the failure to detect defective products, which would lead to customer complaints.

Claims

1. An automatic deformation detection device for measuring the deformation of thin-shell plastic or metal parts, characterized in that, include: A platform, a first testing device, and a second testing device; The first detection device is fixedly mounted on the platform of the pedestal, and the second detection device is fixedly mounted on the platform of the pedestal on the side opposite to the first detection device. The first testing device includes a fixed platform for supporting the product and a plug gauge device for detecting the gaps between the four sides of the product and a reference plane. The plug gauge device is detachably connected to the plane of the fixed platform. The plug gauge device includes a first drive device and a plug gauge for detecting the gaps between the four sides of the product and a reference plane in a go-no-go manner. The first drive device is connected to the plug gauge to drive the plug gauge to move relative to the product being inspected. The second detection device includes a second driving device and detection probes for detecting the height of the four corners of the product relative to a reference plane. The second driving device is connected to the detection probes to drive the detection probes to move relative to the product being detected. The platform includes a controller, which is electrically connected to both the first drive device and the second drive device.

2. The automatic deformation detection device as described in claim 1, characterized in that: The plug gauge device also includes: a connector, a sensing plate, and a position sensor; The movable end of the first driving device is fixedly connected to one end of the connector, and the other end of the connector clamps and fixes the plug gauge. The position sensor is fixedly connected to the plane of the fixed platform on one side of the connector. One end of the sensing plate is fixedly connected to the connector, and the other end of the sensing plate extends toward the position sensor.

3. The automatic deformation detection device as described in claim 2, characterized in that: The first driving device includes a double-acting pneumatic cylinder.

4. The automatic deformation detection device as described in claim 1, characterized in that: The fixed platform also includes at least one right-angle positioning block, which is fixedly disposed on the plane of the fixed platform.

5. The automatic deformation detection device as described in claim 1, characterized in that: The second detection device also includes a bracket, a guide assembly, and a connecting plate; The fixed end of the second driving device is fixedly connected to the bracket, the guide assembly is fixedly connected to the bracket on one side relative to the second driving device, the movable end of the second driving device and the movable end of the guide assembly are fixedly connected to one side of the connecting plate, and at least one detection probe is fixedly connected to the other side of the connecting plate, with one end of the detection probe extending toward the product.

6. The automatic deformation detection device as described in claim 5, characterized in that: The guiding assembly includes guide posts and linear bearings.

7. The automatic deformation detection device as described in claim 5, characterized in that: The detection probe includes a contact displacement sensor.

8. The automatic deformation detection device as described in claim 5, characterized in that: The second drive device includes a double-acting pneumatic cylinder.

9. The automatic deformation detection device as described in claim 1, characterized in that: The controller includes control buttons.

10. The automatic deformation detection device as described in claim 1, characterized in that: A human-machine touch screen for displaying and setting device parameters is fixedly installed on one side of the platform. The human-machine touch screen is electrically connected to both the first detection device and the second detection device.

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