Display backboard wall-mounted stud flatness detection device

Abstract

The utility model discloses a display backboard wall-mounted stud flatness detection device, which comprises a reference plate, the reference plate is provided with a plurality of detection mechanisms, the detection mechanisms comprise positioning holes, the positioning holes are perpendicular to the reference surface of the reference plate, and the plurality of positioning holes are distributed according to the positions of a plurality of studs on a backboard; a pressure sensing module is embedded in an annular area, on the outer side of a port of the datum plane, of the positioning hole, and after the external threaded section of the stud is inserted into the positioning hole, a limiting ring of the stud makes contact with the pressure sensing module. According to the utility model, the detection efficiency is improved, and the flatness detection requirement of the wall-mounted stud in batch production of display screen backboards is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen backboard detection equipment technical field, especially a kind of display backboard wall-mounted stud flatness detection device. BACKGROUND

[0002] Display backboard is generally equipped with wall-mounted structure, for hanging display on wall-mounted surface, common wall-mounted structure adopts wall-mounted stud, and the double-end thread is respectively screwed with the screw hole of backboard and wall-mounted surface. To ensure the wall-hanging effect of display, the flatness of multiple wall-mounted studs on its backboard is required to be higher, usually detected by three-dimensional measuring instrument, with higher detection accuracy, but since three-dimensional measuring instrument needs to detect stud one by one, and needs to determine coordinates by sampling multiple times each time, the efficiency of detection is affected, which is not suitable for batch detection. SUMMARY

[0003] The utility model discloses a kind of display backboard wall-mounted stud flatness detection devices to overcome the deficiencies in the prior art, improve detection efficiency, meet the wall-mounted stud flatness detection needs in batch production of display screen backboard.

[0004] Technical scheme: to achieve the above object, a kind of display backboard wall-mounted stud flatness detection device of the utility model, including datum plate, the datum plate is provided with several detection mechanisms, the detection mechanism includes positioning hole, the datum plane of the datum plate is perpendicular to the positioning hole, multiple positioning holes are set according to the position distribution of multiple studs on backboard;Port outside annular area of the positioning hole on datum plane is embedded with pressure sensing module, after the outer thread section of the stud is inserted into the positioning hole, the limit ring of the stud is in contact with the pressure sensing module.

[0005] Further, the inner wall of the positioning hole is rotationally fitted with an analog ring, the analog ring is axially limited to the positioning hole, and the inner hole of the analog ring is threadedly fitted with the outer thread section.

[0006] Further, the backboard is placed on the positioning platform, and the pressing mechanism presses the backboard on the positioning platform, the pressing mechanism includes several pressure rods, and multiple pressure rods are respectively aligned with the upper end surface of multiple studs and pressed.

[0007] Further, multiple analog rings are drivingly connected by a synchronous linkage structure.

[0008] Further, multiple sleeves are fixedly arranged on the datum plane, the sleeves are coaxially arranged with the corresponding positioning holes, and the sleeves are sleeved with the bases of the corresponding studs on the backboard.

[0009] Further, the reference surface of the reference plate is fixedly provided with a support limiting structure for supporting and limiting the distance between the reference plate and the positioning platform.

[0010] Beneficial effects: the display back plate wall hanging stud flatness detection device of the utility model, through the corresponding sleeve joint of the multi-hole site, the contact type pressure feedback realizes the synchronous detection of multiple studs, improves the detection efficiency, through the simulation of the thread cooperation in actual installation, the actual installation influencing factors are considered, and the approaching motion mode of the reference plate is restricted, so that the accuracy of the detection value is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is an overall structure schematic view of an embodiment of the utility model;

[0012] Fig. 2 It is a detection mechanism structure section view schematic view of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model will be further described below in combination with the drawings.

[0014] As shown in the accompanying Figs. 1-2 The display back plate wall hanging stud flatness detection device, including reference plate 1, the reference plate 1 is provided with several detection mechanisms 2, the detection mechanism 2 includes positioning hole 21, the positioning hole 21 and the reference surface of the reference plate 1 are perpendicular to each other, and multiple positioning holes 21 are arranged according to the position distribution of multiple studs 3 on the back plate.The port outside ring area of the positioning hole 21 on the reference surface is embedded with a pressure sensing module 4, after the external thread section 31 of the stud 3 is inserted into the positioning hole 21, the limiting ring 32 of the stud 3 is in contact with the pressure sensing module 4. Among them, the limiting ring both sides on the stud 3 are the thread surface matched with the screw hole on the back plate and wall hanging surface, for limiting the depth of relative rotation of both ends of the stud, in actual wall hanging installation, only the both ends of the stud are screwed into the corresponding screw hole until screwed tightly, if the flatness is poor, it may cause the back plate and the screen to be abnormally stressed after installation, thereby causing damage. Considering the case that the wall hanging surface is a flat straight surface, the display wall hanging effect mainly depends on the flatness of the end surface of the limiting ring on the same side of multiple wall hanging studs after the wall hanging studs are screwed relative to the back plate, and the display screen back plate is mostly a stamping part, and the convex bump is formed at the position of the wall hanging stud by stamping to improve the support strength, and the flatness of multiple wall hanging studs may be affected by the forming accuracy of these convex bump structures.

[0015] In the detection, the plurality of wall hanging studs are screwed to the back plate, and the plurality of positioning holes on the reference plate are respectively sleeved with the corresponding position stud, so that the reference surface on the lower side of the reference plate is in contact with the limiting ring of the stud. If the flatness meets the requirements, all the limiting rings of the studs should be in contact with the corresponding pressure sensing modules. The pressure values of the plurality of pressure sensing modules are consistent or the pressure difference between them is within the error allowable range, which indicates that the flatness meets the requirements. If there are two pressure detection values that exceed the allowable range of the pressure difference, it indicates that the flatness does not meet the requirements. Through analysis of specific values, the excessively high or low stud mounting points can be found, so that the defects affecting the accuracy of the back plate production line can be accurately repaired. The detection device can simultaneously complete the flatness detection of the plurality of studs on the back plate, has high detection efficiency, and is suitable for batch detection.

[0016] The inner wall of the positioning hole 21 is rotationally matched with an analog ring 5, the analog ring 5 is axially limited relative to the positioning hole 21, and the inner hole of the analog ring 5 is threadedly matched with the outer thread segment 31. By providing the analog ring, the actual screw hole installation scene of the wall hanging surface is simulated, and the influence of the actual screwing degree on the flatness is considered. And through the constraint of the thread, it can be ensured that the reference plate is close to the limiting ring of the stud in a completely horizontal state, and is close to the pressure or placed on the limiting ring by relying on the gravity of the reference plate itself. The pressure value fed back by the pressure sensing module is more accurate, and the detection accuracy is higher.

[0017] The back plate is placed on the positioning platform, and the pressure applying mechanism presses the back plate on the positioning platform. The pressure applying mechanism includes a plurality of pressure rods 6, and the plurality of pressure rods 6 are respectively aligned with the upper end surfaces of the plurality of studs 3 and are pressed tightly. The positioning platform can be a water platform, and the front frame of the display screen back plate is generally flat. For back plates of special structures, the positioning platform can also be adaptively designed to ensure that the plurality of wall hanging studs can be vertically placed after the back plate is placed thereon. By pressing the studs with the pressure rods, the stability of the back plate during detection can be ensured, and the back plate is prevented from moving, and the wall hanging studs are prevented from rotating relative to the back plate and thus being separated from the back plate, thereby avoiding errors in the detection results.

[0018] The plurality of analog rings 5 are drivingly connected through a synchronous linkage structure. The synchronous linkage structure can make the plurality of analog rings rotate synchronously. Specifically, a gear and chain transmission structure or a pulley structure can be adopted. The meshing gear surfaces are arranged on the outer circular surface of the analog ring, a plurality of gear surfaces are meshed with the same chain, and the remaining plurality of analog rings can be driven to rotate synchronously by driving one of the analog rings to rotate, so that the limiting plate can always be kept in a horizontal state close to the stud limiting ring until it is tightened. Whether the flatness meets the requirements is judged by data processing and pressure feedback value. After detection, the analog ring is driven in reverse to rotate so that the stud is separated from the detection mechanism.

[0019] A plurality of sleeves 7 are fixedly arranged on the reference surface, the sleeves 7 are coaxially arranged corresponding to the positioning holes 21, and the sleeves 7 are sleeved and matched with the bases 33 of the corresponding studs 3 on the back plate. The sleeves can play a role in positioning and further constraining the movement direction of the limiting plate. When detecting, the relative sleeving of the sleeve and the base is ensured first to ensure that the upper end of the stud corresponds to the corresponding simulation ring screw hole, so that the subsequent two can realize threaded connection, the reference plate is smoothly lowered, the pressure sensing module is in contact with the limiting ring, and the expected detection effect is realized.

[0020] The reference surface of the reference plate 1 is fixedly provided with a supporting limiting structure for supporting and limiting the distance between the reference plate 1 and the positioning platform. The limiting distance of the supporting limiting structure is set according to the distance between the front plane of the back plate and the limiting ring plane of the wall hanging stud in the ideal state, so that when the supporting limiting structure is in contact with the positioning platform, the pressure sensing module in contact with the standard stud can just sense the preset pressure value. If there is a stud with a too low position, the corresponding pressure sensing module may not be able to sense the pressure value, or the pressure value is small. If there is a stud with a too high position, the corresponding pressure sensing module may not be able to sense the too high pressure value. When the pressure value is higher than the preset pressure value, the downward movement of the reference plate is stopped, and it is judged that the flatness is unqualified, which can avoid damage to the back plate product and the detection device caused by overpressure.

[0021] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A display backplane wall-mount stud flatness detection apparatus, characterized by: Including the benchmark board (1), the benchmark board (1) is provided with several detection mechanisms (2), the detection mechanism (2) includes positioning hole (21), the positioning hole (21) is perpendicular to the benchmark surface of the benchmark board (1), multiple positioning holes (21) are arranged according to the position of multiple studs (3) on the back plate; The port outside annular area of the positioning hole (21) on the benchmark surface is embedded with a pressure sensing module (4), after the external thread section (31) of the stud (3) is inserted into the positioning hole (21), the limiting ring (32) of the stud (3) is in contact with the pressure sensing module (4).

2. The display backplane wall-mount stud flatness detection device of claim 1, wherein: The inner wall of the positioning hole (21) is rotationally fitted with an analog ring (5), the analog ring (5) is axially limited to be arranged relative to the positioning hole (21), and the inner hole of the analog ring (5) is threadedly connected with the external thread section (31).

3. The display backplane wall-mount stud flatness detection device of claim 2, wherein: The back plate is placed on the positioning platform, and the pressing mechanism presses the back plate on the positioning platform, the pressing mechanism includes several pressure rods (6), and multiple pressure rods (6) are respectively aligned with the upper end surface of multiple studs (3) and are pressed.

4. The display backplane wall-mount stud flatness detection device of claim 3, wherein: Multiple analog rings (5) are drivingly connected through a synchronous linkage structure.

5. The display backplane wall-mount stud flatness detection apparatus of claim 4, wherein: Multiple sleeves (7) are fixedly arranged on the benchmark surface, the sleeve (7) is coaxially arranged with the corresponding positioning hole (21), and the sleeve (7) is sleeved and matched with the base (33) of the corresponding stud (3) on the back plate.

6. The display backplane wall-mount stud flatness detection device of claim 5, wherein: The benchmark surface of the benchmark board (1) is fixedly provided with a support limiting structure, and the support limiting structure is used for supporting and limiting the distance between the benchmark board (1) and the positioning platform.

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