Automatic detection jig for notebook keyboard frame

Abstract

The utility model relates to an automatic detection jig for a notebook keyboard frame. The automatic detection jig comprises a bottom plate; the two clamping assemblies are arranged at the top of the bottom plate in a relatively sliding mode, and each clamping assembly comprises a sliding plate arranged at the top of the bottom plate in a sliding mode, a carrying plate fixed to the top of the sliding plate, a limiting mechanism and a pressing mechanism, wherein the limiting mechanism and the pressing mechanism are fixed to the top of the carrying plate; the detection assembly comprises a portal frame erected above the clamping assembly, a moving plate movably arranged on one side of the portal frame, a lifting plate arranged on one side of the moving plate in a lifting mode and a CCD camera fixed to the bottom of the lifting plate and facing the carrier plate. The automatic detection jig for the notebook keyboard frame is simple in structure and high in automation degree in the whole process, compared with visual detection, the detection efficiency and the accuracy of detection results are improved, the situation of missing detection or false detection is avoided, the labor intensity of operators is reduced, and the production cost is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection jigs, and in particular relates to an automatic detection jig for a notebook keyboard frame. Background Art

[0002] The laptop keyboard frame is an important accessory of the laptop, which is used to install keyboard keys for typing on the laptop. Figure 1 This is a schematic diagram of the structure of an existing laptop keyboard frame. The laptop keyboard frame is integrally formed through an injection molding process. The key slot 34 and the touch key slot 35 run through the keyboard frame body 33. When the laptop is subsequently assembled, the keyboard frame is fixed to the laptop keyboard by screwing. The keys are stuck in the key slot 34, and the laptop's touch keypad is stuck in the touch key slot 35.

[0003] The laptop keyboard frame produced by injection molding cannot be installed and used directly. It needs to be inspected on the surface, such as whether there are burrs on the surface or whether there are breaks between adjacent key slots, so as to avoid affecting the typing feel of office workers or the accuracy of keystrokes.

[0004] Currently, inspections are performed visually by operators, which has a low inspection efficiency. In addition, after a long period of inspection, the inspectors' eyes are prone to fatigue, which may lead to missed inspections or false inspections. Utility Model Content

[0005] The utility model provides an automatic detection jig for a notebook keyboard frame, which solves the defects of low detection efficiency and easy missed detection or false detection in visual detection.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic detection jig for a notebook keyboard frame, which comprises:

[0007] base plate;

[0008] Two groups of clamping assemblies slidably arranged on the top of the base plate, each group of the clamping assemblies includes a slide slidably arranged on the top of the base plate, a carrier plate fixed on the top of the slide, and a limiting mechanism and a pressing mechanism fixed on the top of the carrier plate;

[0009] The detection component includes a gantry mounted above the clamping component, a movable plate movably arranged on one side of the gantry, a lifting plate movably arranged on one side of the movable plate, and a CCD camera fixed at the bottom of the lifting plate and facing the carrier plate.

[0010] Optimally, the limiting mechanism includes a limiting plate fixed on the top of the carrier plate, a fixing plate fixed on the top of the carrier plate and arranged opposite to the limiting plate, and a support plate elastically arranged on the side of the fixing plate close to the limiting plate, and the limiting plate and the support plate respectively abut against the outside of the keyboard frame body.

[0011] Optimally, the limiting mechanism further includes a through slot passing through the fixed plate, a push post fixed to one side of the abutment plate and passing through the through slot, and a return spring arranged between the fixed plate and the abutment plate.

[0012] Optimally, the pressing mechanism includes a pressing plate, an internal pressing cylinder fixed to the bottom of the carrier plate, a pressing block connected to the internal pressing cylinder, and an external pressing cylinder fixed to the bottom of the carrier plate, the pressing plate is pressed on the top of the touch key slot, and the external pressing cylinder is pressed on the top of the keyboard frame body.

[0013] Optimally, the pressing mechanism further includes a guide groove penetrating the pressing plate and guide surfaces obliquely arranged on both sides of the pressing block, and the width of the pressing block is equal to the width of the guide groove.

[0014] Optimally, the pressing mechanism further includes a positioning post fixed to the top of the slide plate, a positioning groove penetrating the pressing plate and cooperating with the positioning post, and an avoidance groove penetrating the pressing plate.

[0015] Optimally, the limiting mechanism also includes a positioning block fixed on the top of the carrier plate, a first spring groove opened on the outside of the support plate, a second spring groove opened on the inside of the fixed plate, and an inclined surface opened obliquely on the inside of the support plate, the return spring rests on the first spring groove and the second spring groove, and the positioning block is stuck in the key groove.

[0016] Optimally, the limiting mechanism further comprises an anti-dropping cap fixed on the outside of the push post, and the diameter of the anti-dropping cap is greater than the diameter of the push post.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] When the utility model is used for testing the automatic testing jig for notebook keyboard frames, the operator places the keyboard frame to be tested on the carrier plate, the limiting mechanism limits the sides of the keyboard frame, and the pressing mechanism presses the keyboard frame onto the carrier plate to prevent the middle of the keyboard frame from bulging upward. The clamped keyboard frame is moved to the bottom of the testing component, and the CCD camera completes the photo testing. The whole process has a high degree of automation, and compared with visual inspection, the efficiency of inspection and the accuracy of the inspection results are improved, and there will be no missed inspections or false inspections, the labor intensity of the operator is reduced, and the production cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the structure of the keyboard frame;

[0020] Figure 2 It is a structural diagram of the utility model;

[0021] Figure 3 This is the main view of the utility model;

[0022] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 5 For this utility model Figure 4 The main view;

[0024] Figure 6 For this utility model Figure 4 Schematic diagram of the local structure;

[0025] Figure 7 This is a cross-sectional view of the abutment plate of the present invention;

[0026] Description of reference numerals:

[0027] 1. Bottom plate; 2. Slide rail; 3. Slider; 4. Slide plate; 5. Support column; 6. Carrier plate; 7. Limit plate; 8. Fixed plate; 9. Through slot; 10. Push column; 11. Anti-drop cap; 12. Abutment plate; 13. First spring slot; 14. Second spring slot; 15. Return spring; 16. Inclined surface; 17. External clamping cylinder; 18. Positioning block; 19. Positioning column; 20. Pressing plate; 21. Positioning slot; 22. Avoiding slot; 23. Internal clamping cylinder; 24. Pressing block; 25. Guide surface; 26. Guide slot; 27. Gantry; 28. Linear slide; 29. ​​Moving plate; 30. Lifting cylinder; 31. Lifting plate; 32. CCD camera; 33. Keyboard frame body; 34. Key slot; 35. Touch key slot. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0029] like Figure 2-5 The figure shows the structure of the automatic detection fixture for the notebook keyboard frame of the utility model, which is usually used to detect Figure 1 The keyboard frame shown is inspected to see if there are burrs on its surface or if there are breaks between adjacent key slots, so as to avoid affecting the typing feel or keystroke accuracy of office workers.

[0030] Figure 1This is a schematic diagram of the structure of an existing laptop keyboard frame. The laptop keyboard frame is integrally formed through an injection molding process. The key slot 34 and the touch key slot 35 run through the keyboard frame body 33. When the laptop is subsequently assembled, the keyboard frame is fixed to the laptop keyboard by screwing. The keys are stuck in the key slot 34, and the laptop's touch keypad is stuck in the touch key slot 35.

[0031] The inspection fixture includes a base plate 1, a clamping assembly, and a detection assembly. The base plate 1 is a rectangular plate that is fixed to the inspection machine by screws. The detection assembly is fixed on the top of the base plate 1 and is used to take photos of the surface of the notebook keyboard frame that moves below. The clamping assembly is slidably arranged on the top of the base plate 1 and is located below the detection assembly. There are two sets of clamping assemblies. The notebook keyboard frame to be inspected is fixed on the clamping assembly ( Figure 1 Only one set of clamping assemblies is shown. Two operators sit on either side of the base plate 1. When one clamping assembly moves under the detection assembly, the other clamping assembly moves out from under the detection assembly, facilitating the timely replacement of the keyboard frame. One detection assembly combined with two clamping assemblies can improve detection efficiency and reduce production costs.

[0032] The clamping assembly includes a slide rail 2, a slider 3, a slide plate 4, a support column 5, a carrier plate 6, a limiting mechanism and a pressing mechanism. The slide rail 2 is fixed to the top of the base plate 1 by screw fastening, and the slider 3 is slidably installed on the slide rail 2. The two groups of clamping assemblies share one slide rail 2. When one group of clamping assemblies extends into the interior of the detection assembly, the other group of clamping assemblies moves out from the interior of the detection assembly to improve the efficiency of the detection and avoid the situation where the detection assembly is empty.

[0033] The slide plate 4 is fixed on the top of the slider 3, and the moving cylinder is fixed on the base plate 1 and connected to the slide plate 4, which is used to drive the slide plate 4 to move. By setting the slide rail 2 and the slider 3, the stability of the movement of the slide plate 4 can be improved, thereby improving the accuracy of the detection results.

[0034] The support column 5 is fixed on the top of the slide 4, and the carrier plate 6 is fixed on the top of the support column 5. The support column 5 supports the carrier plate 6 away from the slide 4, ensuring that there is a gap between the carrier plate 6 and the slide 4 to provide installation space for the external clamping cylinder 17 and the internal clamping cylinder 23.

[0035] A limiting mechanism is fixed to the top of the carrier plate 6 and is used to limit the position of the keyboard frame placed on the carrier plate 6. The limiting mechanism includes a limiting plate 7, a fixing plate 8, a through slot 9, a push post 10, an anti-drop cap 11, a stop plate 12, a first spring slot 13, a second spring slot 14, a return spring 15, a sloped surface 16, and a positioning block 18. The carrier plate 6 is rectangular, with two long sides and two short sides arranged opposite each other. The limiting plate 7 is fixed to the top of the carrier plate 6 and is located on one long side and one short side of the carrier plate 6.

[0036] Positioning block 18 is fixed to the top of carrier plate 6. When the keyboard frame is placed on carrier plate 6, positioning block 18 is locked in the keyboard slot. Fixed plate 8 is fixed to the top of carrier plate 6 and is located on the other long side and the other short side of carrier plate 6. Fixed plate 8 is arranged opposite to limiting plate 7 to limit the position of the keyboard frame placed on carrier plate 6.

[0037] like Figure 7 As shown, the through slot 9 horizontally passes through the fixed plate 8, the push post 10 is arranged in the through slot 9, the abutment plate 12 is fixed to the inner side of the push post 10, and the side edges of the keyboard frame placed on the carrier plate 6 are respectively abutted between the limit plate 7 and the abutment plate 12. The anti-slip cap 11 is fixed to the end of the push post 10 away from the abutment plate 12, and the diameter of the anti-slip cap 11 is larger than the diameter of the push post 10. When the abutment plate 12 moves inward and abuts the outer wall of the keyboard frame, it prevents the push post 10 from falling out of the fixed plate 8.

[0038] The first spring groove 13 is opened on the outer side of the support plate 12, and the second spring groove 14 is opened on the inner side of the fixed plate 8. The reset spring 15 is arranged in the first spring groove 13 and the second spring groove 14. During actual detection, the push column 10 is first pulled outward. At this time, the support plate 12 moves toward the side close to the fixed plate 8, and the reset spring 15 is compressed; when the keyboard frame is placed on the carrier plate 6, the anti-drop cap 11 is released. Under the reset action of the reset spring 15, the support plate 12 moves inward and rests on the outer wall of the keyboard frame, completing the limitation of the keyboard frame.

[0039] The reset spring 15 is provided to facilitate the taking and placing of the keyboard frame, and simultaneously, when the keyboard frame is limited, rigid extrusion can be avoided to deform the keyboard frame. The inclined surface 16 is tilted and opened on the inner side of the support plate 12, and the setting of the inclined surface 16 facilitates the taking and placing of the keyboard frame.

[0040] The pressing mechanism is fixed on the top of the carrier plate 6 and is used to press the keyboard frame to prevent the keyboard frame from warping upward, thereby affecting the test results. Figure 6 As shown, the pressing mechanism includes an external pressing cylinder 17, a positioning post 19, a pressing plate 20, a positioning slot 21, an escape slot 22, an internal pressing cylinder 23, a pressing block 24, a guide surface 25, and a guide slot 26. External pressing cylinder 17 is fixed to the outside of carrier plate 6. When the keyboard frame is placed on carrier plate 6, it presses against the top of the four sides of the keyboard frame. External pressing cylinder 17 uses a commercially available ACKR / L25*90 corner cylinder.

[0041] Positioning posts 19 are fixed to the top of carrier plate 6. Positioning slots 21 are provided in pressure plate 20 and engage with positioning posts 19. The cooperation between positioning posts 19 and slots 21 positions pressure plate 20 on the keyboard frame. When the keyboard frame is placed on carrier plate 6, pressure plate 20 presses against the top of touch key slots 35, clamping the keyboard frame from the center to prevent the center portion of the keyboard frame from deforming and bulging upward, which could affect the test results.

[0042] The positioning post 19 on the carrier plate 6 is located at the touch key slot 35 position of the keyboard frame, so when the keyboard frame is placed, it will not interfere with the keyboard frame body 33. The avoidance groove 22 is opened on the pressure plate 20 to avoid the raised position around the touch key slot 35.

[0043] A guide groove 26 is vertically defined in the pressure plate 20. The internal pressure cylinder 23 is fixed to the bottom of the carrier plate 6. The piston rod of the internal pressure cylinder 23, a commercially available ACKR / L25*90 angled cylinder, extends through the guide groove 26. A pressure block 24 is secured to the piston rod of the internal pressure cylinder 23. The internal pressure cylinder 23 drives the pressure block 24 to rotate and descend, pressing against the top of the pressure plate 20. This in turn presses against the top of the touch key slot 35.

[0044] By setting the pressing plate 20, the area pressed on the keyboard frame can be increased to prevent the middle part of the keyboard frame from bulging upward and deforming. The guide surfaces 25 are inclined on both sides of the pressing block 24 to facilitate the insertion of the pressing plate 20.

[0045] The width of the pressing block 24 is equal to the width of the guide groove 26. When the keyboard frame is placed on the carrier plate 6, when the pressing plate 20 is placed, since the width of the pressing block 24 is equal to the width of the guide groove 26, the inserted pressing plate 20 will be preliminarily positioned, making it convenient for the positioning groove 21 of the pressing plate 20 to be directly inserted into the positioning column 19, thereby improving the efficiency of clamping.

[0046] The inspection assembly is fixed to the top of the base plate 1 and mounted above the clamping assembly. It inspects the keyboard frame clamped by the clamping assembly. The inspection assembly includes a gantry 27, a linear slide 28, a movable plate 29, a lifting cylinder 30, a lifting plate 31, and a CCD camera 32. The gantry 27 is fixed to the top of the base plate 1, the linear slide 28 is fixed to one side of the gantry 27, and the movable plate 29 is fixed to the sliding part of the linear slide 28. The linear slide 28 drives the movable plate 29 to move.

[0047] A lifting cylinder 30 is fixed to the side of the movable plate 29 away from the gantry 27. A lifting plate 31 is fixed to the bottom of the lifting cylinder 30. The lifting cylinder 30 drives the lifting plate 31 downward to approach the keyboard frame below. A CCD camera 32 is fixed to the bottom of the lifting plate 31 to complete the photo inspection of the keyboard frame below.

[0048] Two groups of clamping components move alternately under the detection component. The two groups of clamping components are defined as A and B respectively. When the clamping component group A moves to the bottom of the detection component, the clamping component group B moves out from under the detection component. When the detection component detects the keyboard frame on the clamping component group A, the operator replaces the detected keyboard frame on the clamping component group B; when the clamping component group A moves out from under the detection component, the clamping component group B moves to the bottom of the detection component for detection. At this time, another operator replaces the detected keyboard frame on the clamping component group A. Alternating detection can improve the efficiency of detection.

[0049] The working process of the automatic detection fixture for notebook keyboard frame of this utility model is as follows:

[0050] The operator places the keyboard frame to be inspected on the carrier plate 6, and the limiting mechanism limits the side of the keyboard frame, and the pressing mechanism presses the keyboard frame onto the carrier plate 6 to prevent the middle part of the keyboard frame from bulging upward; the clamped keyboard frame is moved to the bottom of the inspection component, and the CCD camera 32 takes a photo for inspection.

[0051] 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. An automatic detection jig for a notebook keyboard frame, the keyboard frame comprising a keyboard frame body (33) and a key slot (34) and a touch key slot (35) provided on the keyboard frame body (33), characterized in that: It includes: Bottom plate (1); Two groups of clamping assemblies are relatively slidably arranged on the top of the base plate (1), each group of the clamping assemblies comprises a slide plate (4) slidably arranged on the top of the base plate (1), a carrier plate (6) fixed on the top of the slide plate (4), and a limiting mechanism and a pressing mechanism fixed on the top of the carrier plate (6); A detection assembly comprises a gantry (27) mounted above the clamping assembly, a moving plate (29) movably arranged on one side of the gantry (27), a lifting plate (31) movably arranged on one side of the moving plate (29), and a CCD camera (32) fixed at the bottom of the lifting plate (31) and facing the carrier plate (6).

2. The automatic inspection jig for a laptop keyboard frame according to claim 1, characterized in that: The limiting mechanism comprises a limiting plate (7) fixed to the top of the carrier plate (6), a fixing plate (8) fixed to the top of the carrier plate (6) and arranged opposite to the limiting plate (7), and a resisting plate (12) elastically arranged on a side of the fixing plate (8) close to the limiting plate (7), wherein the limiting plate (7) and the resisting plate (12) respectively resist against the outer side of the keyboard frame body (33).

3. The automatic inspection jig for a laptop keyboard frame according to claim 2, characterized in that: The limiting mechanism further includes a through slot (9) passing through the fixed plate (8), a push column (10) fixed to one side of the abutment plate (12) and passing through the through slot (9), and a return spring (15) arranged between the fixed plate (8) and the abutment plate (12).

4. The automatic inspection jig for a laptop keyboard frame according to claim 1, characterized in that: The pressing mechanism comprises a pressing plate (20), an internal pressing cylinder (23) fixed to the bottom of the carrier plate (6), a pressing block (24) connected to the internal pressing cylinder (23), and an external pressing cylinder (17) fixed to the bottom of the carrier plate (6), wherein the pressing block (24) presses on the top of the pressing plate (20), the pressing plate (20) presses on the top of the touch key slot (35), and the external pressing cylinder (17) presses on the top of the keyboard frame body (33).

5. The automatic inspection jig for a laptop keyboard frame according to claim 4, characterized in that: The pressing mechanism further comprises a guide groove (26) penetrating the pressing plate (20) and guide surfaces (25) obliquely arranged on both sides of the pressing block (24); the width of the pressing block (24) is equal to the width of the guide groove (26).

6. The automatic inspection jig for a laptop keyboard frame according to claim 4, characterized in that: The pressing mechanism further comprises a positioning column (19) fixed on the top of the carrier plate (6), a positioning groove (21) passing through the pressing plate (20) and cooperating with the positioning column (19), and an avoidance groove (22) passing through the pressing plate (20).

7. The automatic inspection jig for a laptop keyboard frame according to claim 3, characterized in that: The limiting mechanism further includes a positioning block (18) fixed on the top of the carrier plate (6), a first spring slot (13) provided on the outside of the abutment plate (12), a second spring slot (14) provided on the inside of the fixed plate (8), and an inclined surface (16) provided on the inside of the abutment plate (12); the return spring (15) abuts against the first spring slot (13) and the second spring slot (14); and the positioning block (18) is stuck in the key slot (34).

8. The automatic inspection jig for a laptop keyboard frame according to claim 3, characterized in that: The limiting mechanism further comprises an anti-dropping cap (11) fixed on the outside of the push column (10), and the diameter of the anti-dropping cap (11) is larger than the diameter of the push column (10).

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