Clamp for detecting surface deformation quantity of 2.5 D cover plate

Abstract

The utility model discloses a clamp for detecting the surface deformation quantity of a 2.5 D cover plate. The clamp comprises a support and a photographing device. The support comprises a workbench, a supporting plate and two fixing plates, the two fixing plates are arranged on the two sides of the workbench respectively, and the two fixing plates are oppositely arranged. The two ends of the supporting plate are arranged on the two fixing plates, so that the supporting plate can be suspended above the workbench. A through hole is formed in the supporting plate in the thickness direction. A gap is formed between the supporting plate and the workbench and used for containing the cover plate, and a certain height is reserved for photographing of the photographing device. The photographing device is arranged on the supporting plate, the photographing end of the photographing device faces the workbench through the through hole, and then the photographing device can photograph the cover plate of the workbench. Compared with manual handheld shooting, the shooting device is fixed on the support, stability and jitter are little, and test data are more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fixture, in particular to a kind of fixture of detecting 2.5D cover plate surface deformation variable. BACKGROUND

[0002] 2.5D cover plate product is more and more common, mobile phone and vehicle-mounted industry are all used, after 2.5D cover plate sweeps light, the edge of its camber surface and plane smooth transition, cannot directly measure arc width, mostly adopt destructive section test section arc width.Arc width is too large, plane deformation variable is large, cannot reach the requirement of flatness.Therefore, when making, need pipe control process, in prior art, under the premise of not damaging cover plate, manually measure surface deformation variable using projection photographing mode, but the accuracy of manual measurement is low, and easy to appear shaking.

[0003] Therefore, it is urgent to provide a kind of fixture of measuring plane deformation variable. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in the prior art, and provides a kind of fixture of detecting 2.5D cover plate surface deformation variable.

[0005] The utility model aims at overcoming the deficiencies in the prior art, and provides a kind of fixture of detecting 2.5D cover plate surface deformation variable.

[0006] A kind of fixture of detecting 2.5D cover plate surface deformation variable, comprising:

[0007] Support, the support includes workbench, support plate and two fixed plates, two the fixed plate is respectively set in the two sides of the workbench, the support plate is set on two the fixed plate;The support plate is provided with interval in the workbench, the support plate is parallelly arranged with the workbench;The bottom surface of the support plate is provided with several concentric circles, the support plate is provided with through hole along the thickness direction;And

[0008] Photographic device, the photographic device is set on the support plate, the camera end of the photographic device is towards the workbench through the through hole.

[0009] In one embodiment, the number of through holes is three, and the through holes are arranged in a straight line.

[0010] In one embodiment, the fixture for detecting 2.5D cover plate surface deformation variable further includes a fastener, the side of the support plate is provided with a threaded hole, the fixed plate is provided with a fastening groove along the height direction thereof, and one end of the fastener is screwed through the fastening groove and the threaded hole.

[0011] In one of the embodiments, the fixing plate is provided with a limiting slot along the height direction thereof, and the support plate is provided with two limiting members at two ends thereof, one of the limiting members being arranged in the limiting slot of one of the fixing plates.

[0012] In one of the embodiments, the workbench is provided with a material groove.

[0013] In one of the embodiments, the support plate is provided with two limiting members at one end thereof, and the fixing plate is also provided with two limiting slots, the limiting slots being parallel to each other, and one of the limiting members being arranged in one of the limiting slots.

[0014] In one of the embodiments, the support plate is provided with two reinforcing strips below, and the two reinforcing strips are arranged at two sides of the support plate close to the fixing plate respectively.

[0015] In one of the embodiments, the screw hole is arranged on the reinforcing strip.

[0016] In one of the embodiments, the fastener is a stainless steel screw.

[0017] In one of the embodiments, the reinforcing strip is made of metal.

[0018] Compared with the prior art, the utility model has at least the following advantages:

[0019] The utility model discloses a fixture for detecting surface deformation of 2.5D cover plate, which comprises a support and a photographing device. The support comprises a workbench, a support plate and two fixing plates. The two fixing plates are arranged at two sides of the workbench respectively and oppositely. The two ends of the support plate are arranged on the two fixing plates, so that the support plate can be suspended above the workbench. The support plate is provided with a through hole along the thickness direction. The support plate and the workbench are provided with a space, which is used for placing the cover plate and leaving a certain height for the photographing of the photographing device. The photographing device is arranged on the support plate, and the camera end of the photographing device faces the workbench through the through hole, so that the photographing device can take pictures of the cover plate of the workbench. Compared with manual holding for shooting, the photographing device is fixed on the support, so that the stability is improved, the shaking is reduced, and the test data is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced as follows.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the fixture for detecting surface deformation of 2.5D cover plate in one embodiment of the utility model.

[0022] Figure 2It is the bottom surface structure schematic view of the support plate in the embodiment of the utility model.

[0023] Reference signs:

[0024] Support 10, workbench 11, support plate 12, fixed plate 13, through hole 14,

[0025] Limiting groove 20, limiting piece 21, material groove 22, reinforcing strip 30, concentric circle 40. Specific embodiments

[0026] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to relevant drawings.

[0027] The application proposes a clamp for detecting the surface deformation of 2.5D cover plate, please refer to Figure 1 And Figure 2 , comprising: support 10 and photographic device. Support 10 includes workbench 11, support plate 12 and two fixed plates 13, two fixed plates 13 are arranged on the two sides of workbench 11 respectively, and two fixed plates 13 are oppositely arranged. The both ends of support plate 12 are arranged on two fixed plates 13, so that support plate 12 can be suspended above workbench 11. Through hole 14 is arranged on support plate 12 along the thickness direction. Support plate 12 is arranged with interval in workbench 11, the interval is used for placing cover plate, and a certain height is left for photographic device to take photograph. Photographic device is arranged on support plate 12, and the camera end of photographic device is directed to workbench 11 through through hole 14, so that photographic device can take photograph to the cover plate of workbench 11.

[0028] Specifically, support plate 12 is arranged in parallel with workbench 11, so as to improve the accuracy of test result. The bottom surface of support plate 12 is provided with a plurality of concentric circles 40. The setting mode of concentric circle 40 is that the paper with a plurality of concentric circles 40 is printed, and then the paper is attached below support plate 12, and the center of the circle is aligned with the position of through hole 14.

[0029] The jig for detecting the surface deformation of the 2.5D cover plate of the application can quickly project the concentric circles 40 on the paper onto the cover plate and take a photo, and introduce the surface deformation into the CAD drawing to improve the work efficiency. Compared with manual handheld shooting, the camera is fixed on the support 10, which is stable, has less shaking, and the test data is more accurate. The operation method is as follows: the support plate 12 is a transparent glass plate, the photo taken by the camera is the photo of the concentric circles 40 projected onto the cover plate, and then the photo taken by the camera is put into the CAD drawing, and the cover plate in the photo is scaled to the original size of the cover plate 1:1. Then the concentric circles 40 are selected at the 2.5D arc width standard value of the cover plate, the concentric circles 40 are divided into 8 sectors, and the concentric circles 40 are projected onto the cover plate and taken, at this time the size of the concentric circles 40 will change, which is not the standard value, and the measured radii (X1-Xn) of the 8 sectors are introduced into the following formula:

[0030] Deformation: Rn = (X1+X2+X3+X4+X5+X6+X7+X8) / 8;

[0031] ∑ = (R1-Rn) / Rn*100%; ∑ = (R2-Rn) / Rn*100%.

[0032] Where: Rn is the average radius, ∑ is the deformation, R1 is the minimum radius, and R2 is the maximum radius. If the deformation is less than 1.5%, it meets the production requirements.

[0033] Specifically, the measured radii of the 8 sectors are 30.05, 29.87, 29.58, 29.34, 29.43, 29.33, 29.81 and 30.1 (unit: mm), and the calculation is as follows:

[0034] Rn = (30.05+29.87+29.58+29.34+29.43+29.33+29.81+30.1) / 8 = 29.68625 mm;

[0035] ∑ = (R1-Rn) / Rn*100% = (29.33-29.68625) / 29.68625*100% = 1.2%;

[0036] ∑ = (R2-Rn) / Rn*100% = (30.1-29.68625) / 29.68625*100% = 1.39%.

[0037] In an embodiment, the jig for detecting the surface deformation of the 2.5D cover plate further comprises a fastener, the side edge of the support plate 12 is provided with a screw hole, and the screw hole is provided with an internal thread. The fixing plate 13 is provided with a fastening groove along the height direction thereof, one end of the fastener is screwed with the screw hole through the fastening groove, and the one end of the fastener is clamped at the edge of the fastening groove, so that the support plate 12 is fixed on the fixing plate 13. Among them, the fixed mode of screwing improves the reliability of the support plate 12 arranged on the fixing plate 13, avoiding the support plate 12 from falling off due to long-term bearing of the photographic device. Moreover, the length of the fastening groove is the adjustable height of the support plate 12, when adjustment is needed, the fastener is loosened, and then the appropriate height is selected and tightened again, so that the interval between the support plate 12 and the workbench 11 is adjustable, facilitating the placement of the cover plate.

[0038] Please refer to Figure 1 , the fixing plate 13 is provided with a limiting groove 20 along the height direction thereof, the two ends of the support plate 12 extend out of the limiting members 21, and one limiting member 21 is arranged in one limiting groove 20 of one fixing plate 13. The support plate 12 is limitedly arranged on the fixing plate 13, and when the height of the support plate 12 is adjusted, the fastening groove and the screw hole do not need to be aligned, improving the installation efficiency.

[0039] Further, one end of the support plate 12 is provided with two limiting members 21, and the other end is also provided with two limiting members 21. Two limiting grooves 20 are also arranged in one fixing plate 13, the limiting grooves 20 are parallel to each other, and one limiting member 21 is correspondingly arranged in one limiting groove 20, so that the support plate 12 is stably limited in the limiting groove 20.

[0040] Please refer to Figure 1 and Figure 2 , the number of through holes 14 is three, and the through holes 14 are arranged in a straight line, so that the photographic device can shoot through the three through holes 14 to further improve the accuracy of the test results. When the photographic device shoots through a through hole 14, the center of the concentric circle 40 is arranged on the through hole 14.

[0041] Further, the workbench 11 is provided with a material groove 22, and the cover plate is placed in the material groove 22 to limit the placement position of the cover plate and improve the accuracy of the test data.

[0042] Further, the lower side of the support plate 12 is provided with two reinforcing strips 30, and the two reinforcing strips 30 are arranged on the two sides of the support plate 12 close to the fixing plate 13. The arrangement of the reinforcing strips 30 enhances the support strength of the two sides of the support plate 12 and reduces the risk of breakage of the support plate 12. Among them, due to the difficulty of drilling holes on the support plate 12 made of glass material, the screw hole is arranged on the reinforcing strip 30, which optimizes the manufacturing difficulty of the jig for detecting the surface deformation of the 2.5D cover plate. Preferably, the material of the reinforcing strip 30 is metal, which has high hardness and good toughness.

[0043] In addition, the fastener is a stainless steel screw.

[0044] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A fixture for detecting the surface deformation of a 2.5D cover plate, characterized in that, Including: Support, the support includes workbench, support plate and two fixed plates, two fixed plates are respectively arranged on both sides of the workbench, the support plate is arranged on two fixed plates; The support plate and the workbench are provided with interval; The support plate and the workbench are arranged in parallel; The bottom surface of the support plate is provided with a plurality of concentric circles, and the support plate is provided with a through hole in the thickness direction; And Photographic device, the photographic device is arranged on the support plate, and the camera end of the photographic device is directed to the workbench through the through hole.

2. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 1, wherein The number of through holes is three, and the through holes are arranged in a straight line.

3. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 1, wherein It also includes fasteners, the side edge of the support plate is provided with a threaded hole, the fixed plate is provided with a fastening groove along the height direction, and one end of the fastener is screwed through the fastening groove and the threaded hole.

4. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 1, wherein The fixed plate is provided with a limiting groove along the height direction, and the both ends of the support plate extend limiting pieces, one limiting piece is arranged in the limiting groove of one fixed plate.

5. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 1, wherein The workbench is provided with a material groove.

6. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 4, wherein One end of the support plate is provided with two limiting pieces, and two limiting grooves are also arranged in one fixed plate, the limiting grooves are parallel to each other, and one limiting piece is arranged in one limiting groove.

7. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 3, wherein The lower side of the support plate is provided with two reinforcing strips, and the two reinforcing strips are respectively arranged on both sides of the support plate close to the fixed plate.

8. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 7, wherein The threaded hole is arranged on the reinforcing strip.

9. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 3, wherein The fastener is a stainless steel screw.

10. The jig for detecting a surface deformation amount of a 2.5D cover plate according to claim 7, wherein The material of the reinforcing strip is metal.

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