Special jig for measuring flatness of carrier plate

Abstract

The utility model discloses a special jig for measuring the planeness of a carrier plate, which relates to the technical field of measuring jigs and comprises a support, a measuring plate, a cover plate and a receiving device. The measuring plate is obliquely installed on the support and allows the carrier plate to slide down obliquely. The cover plate is installed on the support, the cover plate is parallel to the measuring plate, a first gap is formed between the cover plate and the measuring plate, the first gap is larger than the thickness of the carrier plate, the first gap is used for measuring the flatness of the carrier plate, the carrier plate which can pass through the first gap has qualified flatness, and the carrier plate which cannot pass through the first gap does not have qualified flatness; and the receiving device is arranged below the measuring plate and is used for receiving the carrier plate sliding down from the measuring plate. According to the utility model, the carrier plate can be conveniently detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring fixture technical field, especially in a kind of special fixture of plane degree measurement of carrier plate. BACKGROUND

[0002] In mobile phone camera assembly industry, raw material or product needs to be transported by carrier plate, and the action of material transfer or turnover, raw material is placed in product acupoint on carrier plate, and the required handling operation is completed. In some important stations, such as flip chip welding, bottom filling, etc., the flatness of the carrier is very important. If the flatness of the carrier does not meet the standard, the product placed on the carrier will also have too large inclination, which may cause product damage, gold ball delamination, substrate rupture and other problems in production. Therefore, it is of utmost importance to ensure that the flatness of the carrier meets the specified requirements before production. The method for checking the flatness of the carrier plate mainly includes appearance and size measurement of incoming materials before the carrier plate is processed by the fixture supplier and sent to the production line. The size measurement includes flatness detection, which is measured by a three-coordinate measuring machine, a plurality of points on the carrier plate are measured, and the flatness data of the carrier plate is calculated by least square method. The qualified carrier is put into the production line, and the unqualified carrier is returned to the supplier for processing. However, during the production process, the carrier plate will inevitably deform due to long-term use. It is difficult to ensure that the flatness of the carrier plate used next time is normal. If the carrier plate is taken out for detection in the detection room, it will consume time and effort, which is not conducive to the management and efficiency of the production site. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a special fixture for measuring the flatness of a carrier plate, which can conveniently detect the carrier plate.

[0004] According to the special fixture for measuring the flatness of a carrier plate according to the first aspect of the utility model, the measuring plate is inclinedly installed on the support, and the carrier plate is inclinedly slid down on the measuring plate. The cover plate is installed on the support and is parallel to the measuring plate. A first gap is provided between the cover plate and the measuring plate, and the first gap is greater than the thickness of the carrier plate. The first gap is used to measure the flatness of the carrier plate. The carrier plate that can pass through the first gap has qualified flatness, and the carrier plate that cannot pass through the first gap does not have qualified flatness. The receiving device is arranged below the measuring plate and is used to receive the carrier plate that slides off the measuring plate.

[0005] The utility model discloses a kind of special fixtures of flatness measurement of carrier plate, at least have following beneficial effects: measurement plate is supplied to carrier plate oblique downward sliding, the carrier plate of flatness qualified can pass the gap between cover plate and measurement plate, the carrier plate of flatness unqualified is blocked by cover plate;The specific volume of fixture is small, easy to operate, without external power supply, effectively simplify measurement step, improve the convenience and rapidity of detection carrier plate, carrier plate flatness can be detected directly in production site, change from the need of taking carrier plate to special detection room and measuring in prior art, directly in production workshop can complete carrier plate flatness measurement work, efficient and convenient.

[0006] According to some embodiments of the utility model, the support includes two parallel side plates and a crossbar connected between the two side plates, the side plates are vertically arranged, the upper ends of the side plates are obliquely arranged, side strips are installed on the upper ends of the side plates, and the measurement plate is clamped between the side strips and the upper ends of the side plates.

[0007] According to some embodiments of the utility model, the lower end of the side strip is connected with a blocking strip, the blocking strip abuts against the side surface of the measurement plate, and the blocking strip is used for positioning the measurement plate.

[0008] According to some embodiments of the utility model, the side of the cover plate close to the measurement plate is provided with a measurement slot for the carrier plate to pass through, the measurement slot is used for forming the first gap, and the first gap is larger than the thickness of the carrier plate by 0.13 mm to 0.17 mm.

[0009] According to some embodiments of the utility model, the upper end of the carrier plate is provided with a boss, and a gap slot is formed in the measurement slot to facilitate the boss to pass through the gap slot.

[0010] According to some embodiments of the utility model, the receiving device includes a mounting block and a buffer strip, the mounting block is connected to the support and located at the end of the measurement plate with lower height, the buffer strip is connected to the side of the mounting block close to the measurement plate, and the buffer strip is used for blocking the carrier plate on the measurement plate from continuing to slide down.

[0011] According to some embodiments of the utility model, the part of the measurement plate close to the receiving device is narrowed to facilitate taking the carrier plate.

[0012] According to some embodiments of the utility model, the end of the measurement plate away from the receiving device is provided with a notch, and the notch is used for embedding a tool for clamping the carrier plate.

[0013] According to some embodiments of the utility model, the cover plate and the support are detachably connected.

[0014] According to some embodiments of the utility model, the left and right sides of the cover plate are connected with the support through two locking bolts and an adjusting bolt, the adjusting bolt is located between the two locking bolts, the adjusting bolt passes through the cover plate and is threadedly connected with the support, and the adjusting bolt is threadedly connected with the cover plate and abuts against the support.

[0015] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in connection with the drawings and embodiments, wherein:

[0017] Figure 1 It is the schematic view of mounting structure of first embodiment of the utility model;

[0018] Figure 2 It is the support schematic view of first embodiment of the utility model;

[0019] Figure 3 It is the cover plate schematic view of first embodiment of the utility model;

[0020] Figure 4 It is the measuring plate schematic view of first embodiment of the utility model;

[0021] Figure 5 It is the side edge strip schematic view of first embodiment of the utility model;

[0022] Figure 6 It is the carrier plate schematic view of first embodiment of the utility model;

[0023] Figure 7 It is the mounting structure schematic view of second embodiment of the utility model.

[0024] Reference Signs:

[0025] Support 100, side plate 110, cross bar 120, side edge strip 130, baffle strip 131;

[0026] Measuring plate 200, notch 210;

[0027] Carrier plate 300, boss 310;

[0028] Cover plate 400, measuring groove 410, let go of slot 411, locking bolt 420, adjusting bolt 430;

[0029] Receiving device 500, mounting block 510, buffer strip 520. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, more than two means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] Referring to Figures 1 to 7As shown, the utility model discloses a kind of special fixture of flatness measurement of carrier plate, comprising: support 100, measuring plate 200, cover plate 400, receiving device 500.The flatness of measuring plate 200 should be controlled within 0.01 millimeter, to guarantee the accuracy of measurement result, measuring plate 200 is obliquely installed in support 100, measuring plate 200 plays guiding and supporting effect to carrier plate 300, measuring plate 200 is obliquely downward for carrier plate 300 to slide;After operator places carrier plate 300 on measuring plate 200, carrier plate 300 can slide along measuring plate 200 under the action of gravity.The included angle between measuring plate 200 and horizontal plane should be between 30 degrees and 60 degrees, so that carrier plate 300 can slide with suitable speed.Cover plate 400 is installed in support 100, cover plate 400 is parallel with measuring plate 200, cover plate 400 is above measuring plate 200, first gap for carrier plate 300 to pass through is formed between cover plate 400 and measuring plate 200, and first gap is rectangle.The flatness of cover plate 400 should be controlled within 0.01 millimeter, to guarantee the accuracy of measurement result.The thickness of first gap is adapted to the thickness of carrier plate 300, the thickness of first gap is greater than the thickness of carrier plate 300, and first gap is used to measure the flatness of carrier plate 300.Operating personnel place carrier plate 300 on measuring plate 200, then release hand to make carrier plate 300 slide along measuring plate 200, carrier plate 300 will pass through first gap in the process of sliding, and carrier plate 300 that can pass through first gap has qualified flatness, and carrier plate 300 that cannot pass through first gap does not have qualified flatness;Receiving device 500 is arranged below measuring plate 200, for receiving carrier plate 300 that slides from measuring plate 200, carrier plate 300 with qualified flatness will slide to receiving device 500.The specific volume of jig is small, and it is simple to operate, without external power supply, effectively simplify the structure of measuring equipment and measurement step, improve the convenience and rapidity of detecting carrier plate 300, can directly detect carrier plate 300 flatness in production site, change from taking carrier plate 300 to special detection room for measurement in prior art, use the measuring jig provided in the embodiment, directly in production workshop can complete carrier plate 300 flatness measurement work, efficient and convenient.

[0035] Reference Figure 2As shown in the first embodiment of the utility model, the support 100 includes two parallel side plates 110 and a crossbar 120 connected between the two side plates 110. It is foreseeable that the crossbar 120 is provided with multiple. The crossbar 120 is bolted with the side plate 110, and the crossbar 120 plays a role in increasing structural stability. The two side plates 110 are vertically arranged, and the side plate 110 is a right-angled triangular frame structure. The side edge strip 130 is installed on the hypotenuse of the right-angled triangle, and the side plate 110 can be cut into shape from a steel plate. The upper end of the side plate 110 is obliquely arranged, and the upper end of the side plate 110 is provided with the side edge strip 130. The side edge strip 130 is bolted with the side plate 110. The measurement plate 200 is clamped between the corresponding side edge strip 130 and the upper end of the side plate 110. The measurement plate 200 is detachably installed, which facilitates regular inspection of whether the measurement plate 200 is worn or deformed and maintenance of the measurement plate 200, thereby ensuring the accuracy of the measurement result. The upper end of the side plate 110 is provided with a positioning pin, and the side edge strip 130 is provided with a positioning hole matched with the positioning pin. Before the side edge strip 130 is bolted to the side plate 110, the positioning pin is inserted into the positioning hole to preliminarily position the side edge strip, thereby improving the installation efficiency.

[0036] Referring to Figure 2 and Figure 5 As shown in the first embodiment of the utility model, the side edge strip 130 is connected with a blocking strip 131 at the lower end, and the blocking strip 131 is integrally formed with the side edge strip 130. The blocking strip 131 abuts against the side surface of the measurement plate 200, and the blocking strip 131 is used for positioning the measurement plate 200. During installation, the side edge strip 130 is first bolted to the side plate 110, so that the connecting bolt of the side edge strip 130 and the side plate 110 is in a loosened state. The measurement plate 200 is inserted between the side edge strip 130 and the side plate 110. During the insertion of the measurement plate 200, the two sides of the measurement plate 200 are positioned by the blocking strip 131 and guided during the insertion of the measurement plate 200. The side edge strip 130 and the blocking strip 131 cooperate to improve the speed of installing and dismounting the measurement plate 200 and reduce the difficulty of maintenance.

[0037] Referring to Figure 3 As shown in the first embodiment of the utility model, the cover plate 400 is provided with a measurement groove 410 through which the carrier plate 300 passes, on the side close to the measurement plate 200. The bottom wall of the measurement groove 410 is parallel to the upper surface of the measurement plate 200. The measurement groove 410 is used for forming a first gap, and the thickness of the first gap is the distance between the measurement plate 200 and the bottom wall of the measurement groove 410. The thickness of the first gap is 0.13mm to 0.17mm greater than the thickness of the carrier plate 300. The thickness of the first gap should be selected according to the thickness of the carrier plate 300 and the allowable flatness error range. During maintenance and production, the depth of the measurement groove 410 is changed to adapt to the thickness of the carrier plate 300 that needs to be measured. Therefore, the original size requirement of the cover plate 400 is not high, which can reduce the difficulty of processing.

[0038] Referring to Figure 3 and Figure 6 As shown in the first embodiment of the utility model, the upper end of the carrier plate 300 is provided with a boss 310, the boss 310 is a structure provided on the carrier plate 300 for other process requirements, and the boss 310 should not be measured when measuring the flatness of the carrier plate 300. The measurement groove 410 is provided with a clearance groove 411, and the size of the clearance groove 411 is greater than the size of the boss 310. The number and position of the clearance groove 411 match the number and position of the boss 310 on the carrier plate 300, so that the boss 310 passes through the clearance groove 411. The boss 310 does not affect the flatness measurement result of the carrier plate 300. It can be predicted that when the carrier plate 300 is not provided with the boss 310, the clearance groove 411 does not need to be provided.

[0039] Referring to Figure 2 and Figure 3 As shown in the first embodiment of the utility model, the receiving device 500 includes a mounting block 510 and a buffer strip 520, the mounting block 510 is bolted to the support 100 and located at the lower end of the measurement plate 200, the mounting block 510 is located at the position of blocking the sliding path of the carrier plate 300, and plays the role of receiving and storing the carrier plate 300 detected. The buffer strip 520 is connected to the side of the mounting block 510 close to the measurement plate 200, and the buffer strip 520 is made of soft materials such as rubber and silica gel. The buffer strip 520 is used to block the carrier plate 300 on the measurement plate 200 from falling further. The buffer strip 520 plays a buffering role to prevent the carrier plate 300 from directly impacting the mounting block 510 and causing wear. The length of the buffer strip 520 should be greater than the width of the carrier plate 300.

[0040] Referring to Figure 1 and Figure 4 As shown in the first embodiment of the utility model, the part of the measurement plate 200 close to the receiving device 500 is narrowed to facilitate the taking of the carrier plate 300. The measurement plate 200 is provided with arc-shaped waist grooves on the left and right sides, and the edges of the waist grooves are provided with round corners to prevent cutting hands. The distance between the two waist grooves is less than the width of the carrier plate 300, so as to facilitate the operator to take the carrier plate 300 blocked by the receiving device 500 and improve the detection efficiency.

[0041] Referring to Figure 4As shown in the first embodiment of the utility model, the measuring plate 200 is provided with a notch 210 at one end away from the receiving device 500, and the notch 210 is used for embedding the fingers or clamping jaws and other tools for clamping the carrier plate 300. When the carrier plate 300 is blocked by the cover plate 400 because of unqualified flatness, the carrier plate 300 may be stuck between the measuring plate 200 and the cover plate 400. Therefore, when the cover plate 400 is taken out, the space at the notch 210 is left for the fingers or clamping jaws, pliers and other tools to clamp the carrier plate 300 and take out the carrier plate 300 from between the measuring plate 200 and the cover plate 400. It can be foreseen that the distance between the notch 210 and the cover plate 400 is not greater than the length of the carrier plate 300 in the extension direction of the measuring plate 200. When the carrier plate 300 is stuck between the measuring plate 200 and the cover plate 400, part of the carrier plate 300 is located at the notch 210.

[0042] Referring to Figures 1 to 7 As shown in the first embodiment of the utility model, the cover plate 400 is detachably connected with the bracket 100. When testing cover plates 400 of different thicknesses, the gap between the cover plate 400 and the measuring plate 200 needs to be changed. Different cover plates 400 with different depths of the measuring groove 410 can be used to adapt to cover plates 400 of different thicknesses.

[0043] Referring to Figure 7 As shown, it can be understood that in the second embodiment of the utility model, the cover plate 400 is connected with the bracket 100 through two locking bolts 420 and an adjusting bolt 430 on both sides. The adjusting bolt 430 is located between the two locking bolts 420, and the adjusting bolt 430 passes through the cover plate 400 and is threadedly connected to the bracket 100. The adjusting bolt 430 is threadedly connected to the cover plate 400 and abuts against the bracket 100. The locking bolt 420 plays a role in pushing the cover plate 400 to press the bracket 100, and the adjusting bolt 430 plays a role in lifting the cover plate 400 to make the cover plate 400 away from the bracket 100. Through the structure of two pushing and one pulling, the cover plate 400 can be flexibly adjusted to the distance of the measuring plate 200.

[0044] It can be foreseen that the cover plate 400 is provided with a downward indicating arrow to remind the staff to pay attention to the placement direction of the cover plate 400 and the carrier plate 300.

[0045] The use steps are as follows: the carrier plate 300 to be tested is placed at the highest position of the measuring plate 200, and the carrier plate 300 is loosened to make the carrier plate 300 slide down along the measuring plate 200 under the action of gravity. The carrier plate 300 with qualified flatness can pass through the gap between the cover plate 400 and the measuring plate 200, and the carrier plate 300 on the measuring plate 200 continues to slide down until being blocked by the buffer strip 520. The carrier plate 300 with unqualified flatness is blocked by the cover plate 400, and at this time the cover plate 400 is clamped through the notch 210 and taken out from the gap between the cover plate 400 and the measuring plate 200.

[0046] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range possessed by the ordinary skilled in the art without departing from the utility model's tenet.

Claims

1. A dedicated fixture for measuring flatness of a carrier plate, characterized by, The utility model relates to a kind of measuring device, including: Support (100); Measuring plate (200), it is obliquely installed in the support (100), the measuring plate (200) is obliquely downward for the slide of carrier plate (300); Cover plate (400), it is installed in the support (100), the cover plate (400) is parallel with the measuring plate (200), first gap is provided between the cover plate (400) and the measuring plate (200), the first gap is greater than the thickness of the carrier plate (300), the first gap is used to measure the flatness of the carrier plate (300), the carrier plate (300) that can pass through the first gap has qualified flatness, the carrier plate (300) that cannot pass through the first gap does not have qualified flatness; Receiving device (500), it is arranged below the measuring plate (200), for receiving the carrier plate (300) that slides from the measuring plate (200).

2. The dedicated fixture for flatness measurement of a carrier plate according to claim 1, wherein: The support (100) includes two parallel side plates (110) and a crossbar (120) connected between the two side plates (110), the side plates (110) are vertically arranged, the upper ends of the side plates (110) are obliquely arranged, side strips (130) are installed on the upper ends of the side plates (110), and the measuring plate (200) is clamped between the side strips (130) and the upper ends of the side plates (110).

3. The dedicated fixture for flatness measurement of a carrier plate according to claim 2, wherein: The lower end of the side strip (130) is connected with a blocking strip (131), the blocking strip (131) abuts against the side of the measuring plate (200), and the blocking strip (131) is used for positioning the measuring plate (200).

4. The dedicated fixture for flatness measurement of a carrier plate according to claim 1, wherein: The side of the cover plate (400) close to the measuring plate (200) is provided with a measuring slot (410) for the carrier plate (300) to pass through, the measuring slot (410) is used to form the first gap, and the first gap is greater than the thickness of the carrier plate (300) by 0.13mm to 0.17mm.

5. The dedicated fixture for flatness measurement of a carrier plate according to claim 4, wherein: The upper end of the carrier plate (300) is provided with a boss (310), and a gap slot (411) is formed in the measuring slot (410) to facilitate the boss (310) to pass through the gap slot (411).

6. The dedicated fixture for flatness measurement of a carrier plate according to claim 1, wherein: The receiving device (500) includes a mounting block (510) and a buffer strip (520), the mounting block (510) is connected to the support (100) and located at the lower end of the measuring plate (200), the buffer strip (520) is connected to the side of the mounting block (510) close to the measuring plate (200), and the buffer strip (520) is used to block the carrier plate (300) on the measuring plate (200) from continuing to slide.

7. The dedicated fixture for flatness measurement of a carrier plate according to claim 6, wherein: The part of the measuring plate (200) close to the receiving device (500) is narrowed to facilitate the carrier plate (300) to be taken.

8. The dedicated fixture for flatness measurement of a carrier plate according to claim 7, wherein: The end of the measuring plate (200) away from the receiving device (500) is provided with a notch (210), and the notch (210) is used for embedding a tool for clamping the carrier plate (300).

9. The dedicated fixture for flatness measurement of a carrier plate as claimed in claim 1, wherein: The cover plate (400) is detachably connected with the support (100).

10. The dedicated fixture for flatness measurement of a carrier plate as claimed in claim 1, wherein: The left and right sides of the cover plate (400) are connected with the support (100) through two locking bolts (420) and an adjusting bolt (430), the adjusting bolt (430) is located between the two locking bolts (420), the adjusting bolt (430) passes through the cover plate (400) and is threadedly connected with the support (100), and the adjusting bolt (430) is threadedly connected with the cover plate (400) and abuts against the support (100).

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