阅读说明：本技术 用于剪刀脚的检测机构 (Detection mechanism for scissor feet ) 是由 丁秀琴 邓龙升 卢俊生 汤毛毛 魏智鹏 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种用于剪刀脚的检测机构,包括：检测台,检测台上设置有多个检测孔,每一检测孔上覆盖有一检测镜头,在检测台的下方与每一检测镜头相对设有一检测相机；拉料台,拉料台设置于检测台的一侧,在拉料台上设置有与检测镜头相对应的拉料机构,每一检测镜头与其相对应的拉料机构沿第二方向相对设置；拉料台下方连接有驱动拉料台沿垂直方向运动的升降机构；夹料机构,夹料机构包括套接于内剪刀框的圆孔内的夹头,每一夹头的周侧设置有至少一个与内剪刀框旋转枢接的外剪刀框相对的吹嘴,夹料机构设置于检测台与拉料台的上方,且夹料机构在检测台与拉料台间沿第二方向移动。利用该检测机构能实现自动化检测,提高产品合格率。(The invention discloses a detection mechanism for scissor feet, which comprises: the device comprises a detection table, a camera and a control module, wherein the detection table is provided with a plurality of detection holes, each detection hole is covered with a detection lens, and a detection camera is arranged below the detection table and opposite to each detection lens; the material pulling platform is arranged on one side of the detection platform, a material pulling mechanism corresponding to the detection lenses is arranged on the material pulling platform, and each detection lens and the corresponding material pulling mechanism are oppositely arranged along a second direction; a lifting mechanism for driving the material pulling table to move along the vertical direction is connected below the material pulling table; the material clamping mechanism comprises chucks sleeved in circular holes of the inner scissor frame, at least one blowing nozzle opposite to the outer scissor frame in rotary pin joint with the inner scissor frame is arranged on the periphery of each chuck, the material clamping mechanism is arranged above the detection table and the material pulling table, and the material clamping mechanism moves between the detection table and the material pulling table along a second direction. The automatic detection can be realized by utilizing the detection mechanism, and the product percent of pass is improved.)

1. The utility model provides a detection mechanism for scissors foot, the scissors foot includes interior scissors frame and the outer scissors frame of rotatory pin joint, its characterized in that includes:

the device comprises a detection table, a camera and a control module, wherein the detection table is provided with a plurality of detection holes, each detection hole is covered with a detection lens, and a detection camera is arranged below the detection table and opposite to each detection lens;

the material pulling table is arranged on one side of the detection table, a material pulling mechanism corresponding to the detection lenses is arranged on the material pulling table, and each detection lens and the corresponding material pulling mechanism are oppositely arranged along a second direction; a lifting mechanism for driving the material pulling table to move along the vertical direction is connected below the material pulling table;

press from both sides material mechanism, press from both sides material mechanism including cup joint in chuck in the round hole of interior scissors frame, each the week side of chuck be provided with at least one with the blowing nozzle relative of the outer scissors frame of the rotatory pin joint of interior scissors frame, press from both sides material mechanism set up in examine test table with draw the top of material platform, just press from both sides material mechanism and be in examine test table with draw between the material platform edge the second direction removes.

2. The detection mechanism for a scissor foot according to claim 1, wherein: each of the circumferential sides of the chuck is provided with two blowing nozzles, and the included angle between each blowing nozzle and the center of the chuck is less than 180 degrees.

3. The detection mechanism for a scissor foot according to claim 1, wherein: the material clamping mechanism comprises a material clamping seat, a lifting cylinder arranged on the material clamping seat, a material clamping plate connected with the lifting cylinder, a plurality of chucks arranged on the material clamping plate in an array manner, and at least one blowing nozzle arranged on the periphery of each chuck.

4. The detection mechanism for a scissor foot according to claim 3, wherein: and a plurality of rows of the chucks arranged in a third direction are arranged on the material clamping plate along the second direction.

5. The detection mechanism for a scissor foot according to claim 4, wherein: the detection lenses are arranged on the detection platform along the third direction, the material pulling mechanisms are arranged on the material pulling platform along the third direction, and the distance between every two adjacent detection lenses is the same as the distance between every two adjacent chucks arranged along the third direction.

6. The detection mechanism for a scissor foot according to claim 4, wherein: the distance between the detection lens and the pulling claw of the material pulling mechanism is twice as long as the distance between the adjacent chucks along the second direction.

7. The detection mechanism for a scissor foot according to claim 1, wherein: the material pulling mechanism comprises a claw pulling cylinder arranged on the material pulling platform and a group of pulling claws connected with the claw pulling cylinder.

8. The detection mechanism for a scissor foot according to claim 1, wherein: the number of the detection lenses includes four.

9. The detection mechanism for a scissor foot according to claim 1, wherein: the device is characterized by further comprising a control device, wherein the control device is connected with the detection camera, the material pulling mechanism, the lifting mechanism and the material clamping mechanism.

Technical Field

The invention relates to the field of keyboard assembly, in particular to a detection mechanism for scissor feet.

Background

The computer keyboard is usually assembled by mounting scissors and key caps on a keyboard main board with a circuit. The scissors foot is a common part and mainly comprises an inner scissors frame and an outer scissors frame which are mutually crossed and are in rotary pin joint. Set up the scissors foot in key cap below and can make the key cap more stable, kick-back rapidly, pressure is balanced. Therefore, more and more customers will choose to install scissors in the keyboard. When the rotating shaft of the inner scissor frame is inserted into the shaft hole of the outer scissor frame, the rotating shaft and the shaft hole are very small, so that invalid insertion is easy to occur in the insertion process, and the yield of products is influenced. The existing detection for the assembled scissor legs usually adopts a manual detection mode, so that the detection efficiency is low, the error is easy to occur, and the labor cost is high.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a detection mechanism for scissor legs, which can realize automatic detection of the assembled scissor legs and improve the qualification rate of products.

In order to achieve the purpose, the invention adopts the technical scheme that: a detection mechanism for a scissor foot, the scissor foot including an inner scissor frame and an outer scissor frame that are rotationally pivoted, comprising:

the device comprises a detection table, a camera and a control module, wherein the detection table is provided with a plurality of detection holes, each detection hole is covered with a detection lens, and a detection camera is arranged below the detection table and opposite to each detection lens;

the material pulling table is arranged on one side of the detection table, a material pulling mechanism corresponding to the detection lenses is arranged on the material pulling table, and each detection lens and the corresponding material pulling mechanism are oppositely arranged along a second direction; a lifting mechanism for driving the material pulling table to move along the vertical direction is connected below the material pulling table;

press from both sides material mechanism, press from both sides material mechanism including cup joint in chuck in the round hole of interior scissors frame, each the week side of chuck be provided with at least one with the blowing nozzle relative of the outer scissors frame of the rotatory pin joint of interior scissors frame, press from both sides material mechanism set up in examine test table with draw the top of material platform, just press from both sides material mechanism and be in examine test table with draw between the material platform edge the second direction removes.

In the technical scheme, two blowing nozzles are arranged on the peripheral side of each chuck, and the included angle between each blowing nozzle and the center of each chuck is smaller than 180 degrees.

In the technical scheme, the material clamping mechanism comprises a material clamping seat, a lifting cylinder arranged on the material clamping seat, a material clamping plate connected with the lifting cylinder, a plurality of chucks arranged on the material clamping plate in an array manner, and at least one blowing nozzle arranged on the periphery of each chuck.

In the above technical solution, a plurality of rows of the chucks arranged in the third direction are provided on the material clamping plate along the second direction.

In the technical scheme, the plurality of detection lenses are arranged on the detection platform along the third direction, the plurality of material pulling mechanisms are arranged on the material pulling platform along the third direction, and the distance between every two adjacent detection lenses is the same as the distance between every two adjacent chucks arranged along the third direction.

In the above technical solution, a distance between the detection lens and the pulling claw of the pulling mechanism is twice a distance between the adjacent chucks along the second direction.

In the technical scheme, the pulling mechanism comprises a pulling claw cylinder arranged on the pulling platform and a group of pulling claws connected with the pulling claw cylinder.

In the above technical solution, the number of the detection lenses includes four.

In the above technical scheme, the device further comprises a control device, and the control device is connected with the detection camera, the material pulling mechanism, the lifting mechanism and the material clamping mechanism.

The invention has at least the following beneficial effects:

1. according to the invention, the scissor legs are moved between the detection table and the material pulling table by the material clamping mechanism, and at least one blowing nozzle is arranged on the peripheral side of each chuck, so that when the scissor legs are opposite to the detection camera, the correctly assembled scissor legs can rotate relative to the inner scissor frame under the action of the blowing nozzles, the detection camera obtains a detection result, and the scissor legs which are not assembled are separated out by the matching of the material pulling mechanism, so that automatic detection is realized, and the qualification rate of products is improved.

In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an assembling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a jig tray according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a fixture block according to an embodiment of the present invention;

FIG. 4 is a schematic view of a material clamping mechanism in an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the fixture plate and the clamping mechanism in an embodiment of the present invention;

FIG. 7 is a schematic view of the combination of the inspection station and the material pulling station in the embodiment of the present invention;

fig. 8 is a schematic view of a scissor leg in an embodiment of the invention.

Reference numerals of the above figures: 1. an inner scissor frame; 11. a circular hole; 12. a rotating shaft; 2. an outer scissor frame; 21. a shaft hole; 3. a work table; 4. a slide rail; 5. a material pressing mechanism; 6. a jig plate; 61. a jig block; 611. a first step portion; 612. a guide post; 613. a guiding cambered surface; 614. a first outer frame; 615. a first notch; 616. a first limiting part; 617. a first groove; 621. a second step portion; 622. a second outer frame; 623. a second notch; 624. a second limiting part; 625. a second groove; 631. a first positioning surface; 62. mounting grooves; 7. a material clamping mechanism; 71. a material clamping seat; 72. a lifting cylinder; 73. a material clamping plate; 74. a chuck; 75. a blowing nozzle; 8. a detection mechanism; 81. a detection table; 811. detecting a lens; 812. detecting a camera; 82. a material pulling table; 821. a material pulling mechanism; 8211. a claw pulling cylinder; 8212. pulling a claw; 9. and a control device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1 to 8, an assembling device for scissors feet comprises a workbench 3, a slide rail 4 arranged on the workbench 3, a pressing mechanism 5 arranged above the slide rail 4 and located at one end of the slide rail 4 in the extending direction, a detection mechanism 8 arranged at the other end of the slide rail 4 in the extending direction, a jig tray 6 connected to the slide rail 4 in a sliding manner, and a material clamping mechanism 7 arranged above the jig tray 6 and the detection mechanism 8 and used for moving materials.

When the assembly and the cutting are not carried out, the outer scissors frame 2 and the inner scissors frame 1 are connected sheet-shaped material pieces. The whole material piece can be placed on the jig disc 6, and the outer scissor frame 2 and the inner scissor frame 1 on the material piece are respectively opposite to the first step portion 611 and the second step portion 621 on the jig disc 6. The jig disc 6 can slide along the slide rail 4 to the lower side of the pressing mechanism 5, and the pressing plate of the pressing mechanism 5 presses the jig disc 6, so that the first pressing block and the second pressing block on the pressing plate are respectively opposite to the inner scissor frame 1 and the outer scissor frame 2, the outer scissor frame 2 is pressed on the first step portion 611, and the inner scissor frame 1 is pressed on the second step portion 621. Thereby breaking and separating the outer scissor frame 2 and the inner scissor frame 1 from the waste materials on the peripheral sides.

Referring to fig. 6, the assembling mechanism for the scissors comprises a jig tray 6 slidably connected to the slide rail 4, and a material clamping mechanism 7 disposed above the jig tray 6.

Referring to fig. 2, mounting areas are arranged in an array on the jig tray 6, and each of the mounting areas includes a first step portion 611 for placing the outer scissor frame 2. The first step portion 611 is disposed obliquely along a first direction, which is an extending direction of the shaft hole 21 of the outer scissor frame 2 placed on the first step portion 611 in a preset placing manner. A guide post 612 is provided inside the first step portion 611 toward the bottom end of the first step portion 611. The guide arc 613 of the guide post 612 abuts against the outer blade frame 2 placed on the first step 611. A first groove 617 is formed in the middle of the first step portion 611 to face the outer scissor frame 2. For example, the first step part 611 may be provided as a U-shaped step part. Wherein, the connecting section in the middle of the U-shaped step part is the bottom end of the first step part 611, and the opening side of the U-shaped step part is the top end of the first step part 611. The mounting area is in be the array distribution on the tool dish 6, make press from both sides the material structure and can once press from both sides a plurality of interior scissors frame 1 and assemble with outer scissors frame 2, improve the packaging efficiency.

In a preferred embodiment, the guide arc surface 613 is opposite to the middle of the bottom end of the first step part 611. The acting force of the guide arc surface 613 to the outer scissor frame 2 and the insertion force of the rotating shaft 12 and the shaft hole 21 are positioned on the same straight line, and effective insertion between the two is guaranteed.

Referring to fig. 3, the outer side wall of the first step portion 611 extends upward to form a first outer frame 614 which is matched with the outer frame of the outer scissor frame 2. In a preferred embodiment, the first outer frame 614 is provided with at least one first notch 615. The arrangement of the notch enables the first outer frame 614 to have certain elasticity, so that the outer scissors frame 2 can be conveniently pressed into the first outer frame 614 and arranged on the first step part 611, and the position of the outer scissors frame 2 on the first step part 611 can be conveniently limited, thereby facilitating the assembly with the inner scissors frame 1.

In order to further limit the position of the outer scissor frame 2 relative to the first step portion 611, a first limiting portion 616 opposite to the first step portion 611 is disposed on at least one side of the first outer frame 614, and a sliding groove is formed between the first limiting portion 616 and the first step portion 611. Referring to fig. 3, the first position-limiting portion 616 may be formed by extending one side of the first outer frame 614 to the center of the U-shaped step portion.

For the outer scissors frame 2 and the inner scissors frame 1 which are cut completely, the material clamping mechanism 7 can sleeve the inner scissors frame 1 and then the inner scissors frame 1 and the outer scissors frame 2 which is arranged on the first step part 611 in the installation area are assembled.

In a preferred embodiment, a second step 621 for placing the inner scissor frame 1 is further included in the mounting area. The middle of the second step 621 is provided with a second groove 625 corresponding to the circular hole 11 of the inner scissor frame 1. For example, the second step portion 621 may be provided as a rectangular groove. The outer side of the second step 621 extends upward to form a second outer frame 622 matching with the outer frame of the inner scissors frame 1. At least one second notch 623 is formed in the second outer frame 622. The second notch 623 is provided to enable the second outer frame 622 to have a certain elasticity, which is the same as the first notch 615, so that the inner scissor frame 1 can be pressed into the second outer frame 622 and disposed on the second step 621. Preferably, the second outer frame 622 is provided with a second stopper 624 opposite to the second step 621. The second position-limiting part 624 is formed by extending the second frame 622 from the center of the second step 621.

Referring to fig. 3, the mounting area is a jig block 61 embedded in the jig plate 6. Be equipped with first locating surface 631 on the tool piece 61, the mounting groove 62 of tool dish 6 be equipped with first locating surface 631 matched with second locating surface. The jig block 61 is arranged to be detachable from the jig plate 6, so that the jig block 61 can be replaced by the scissor legs of different types. Set up first locating surface 631 and the second locating surface of matched with, guarantee that each tool piece 61 on the tool dish 6 installs with the form of predetermineeing, be convenient for realize subsequent batch operation.

The material clamping mechanism 7 comprises a material clamping seat 71, a lifting cylinder 72 arranged on the material clamping seat 71, a material clamping plate 73 connected with the lifting cylinder 72, a plurality of clamping heads 74 arranged on the material clamping plate 73 in an array manner, and at least one blowing nozzle 75 arranged on the peripheral side of each clamping head 74.

The clamping head 74 can be sleeved in the circular hole 11 of the inner scissors frame 1, so as to drive the inner scissors frame 1 to move. Each of the chucks 74 corresponds to one of the mounting areas on the jig plate 6. When the material clamping mechanism 7 is used for installing the scissor legs on the jig disc 6, each clamping head 74 is used for respectively carrying out installation operation on the inner scissor frame 1 and the outer scissor frame 2 in the installation area corresponding to the clamping head 74, so that batch assembly is formed, and the assembly efficiency is improved.

The material clamping mechanism 7 is connected with a driving mechanism (not shown), and the driving mechanism can drive the material clamping mechanism 7 to move above the jig disc 6 and the detection mechanism 8. Specifically, when one inner scissor frame 1 is sleeved on each chuck 74, the driving mechanism can drive the material clamping mechanism 7 to arrange the clamped inner scissor frame 1 in the outer scissor frame 2 placed on the first step portion 611, and enable one rotating shaft 12 of the inner scissor frame 1 to be inserted into the shaft hole 21 of the outer scissor frame 2 away from the guide column 612. And then the inner scissor frame 1 is dragged to move towards the side away from the guide post 612. Since one of the rotating shafts 12 of the inner scissor frame 1 is inserted into the shaft hole 21 of the outer scissor frame 2 facing away from the guiding post 612, when the inner scissor frame 1 is dragged by the clamping head 74 to move to the side away from the guiding post 612, a dragging force is applied to the outer scissor frame 2 facing away from the guiding post 612, so that the guiding post 612 moves obliquely upward on the first step portion 611 along the guiding arc 613. Thereby, the inner shear frame 1 is slowly pushed into the shaft hole 21 toward the one rotating shaft 12 of the guide post 612, and the automatic assembly of the inner shear frame 1 and the outer shear frame 2 is realized.

Referring to fig. 1, a detection mechanism 8 is disposed at one end of the slide rail 4 away from the pressing mechanism 5. The detection mechanism 8 comprises a detection platform 81, a material pulling platform 82 and a material clamping mechanism 7, wherein the detection platform 81 and the material pulling platform 82 are arranged on the workbench 3, and the material is moved between the detection platform 81 and the material pulling platform 82.

Referring to fig. 7, a plurality of inspection holes are formed in the inspection stage 81, each of the inspection holes is covered with an inspection lens 811, and an inspection camera 812 is disposed below the inspection stage 81 and opposite to each of the inspection lenses 811.

The material pulling table 82 is arranged on one side of the detection table 81, and a material pulling mechanism 821 corresponding to the detection lens 811 is arranged on the material pulling table 82. Each of the detecting lenses 811 and the corresponding material pulling mechanism 821 are disposed oppositely along a second direction. A lifting mechanism (not shown) for driving the material pulling table 82 to move along the vertical direction is connected below the material pulling table 82.

The material clamping mechanism 7 is driven by the driving mechanism to move along the second direction between the detection table 81 and the material pulling table 82.

At least one blowing nozzle 75 is provided on the peripheral side of each collet 74. The mouthpiece 75 is opposed to the outer scissor frame 2 of the assembled scissor arms. Because the inner scissor frame 1 is rotatably pivoted with the outer scissor frame 2, whether the inner scissor frame 1 and the outer scissor frame 2 are effectively assembled can be judged by utilizing whether the outer scissor frame 2 can rotate relative to the inner scissor frame 1 under the action of blowing air from the blowing nozzle 75.

Referring to fig. 1, the detecting mechanism 8 further includes a control device 9, and the control device 9 is connected to the detecting camera 812, the material pulling mechanism 821, the lifting mechanism and the material clamping mechanism 7. When the clamping mechanism 7 moves the chuck 74 above the detection lens 811 to face the detection camera 812, the control mechanism controls the blowing nozzle 75 on the clamping mechanism 7 to blow air to the outer scissor frame 2, so that the outer scissor frame 2 rotates relative to the inner scissor frame 1. The detection result is acquired by the detection camera 812 and transmitted to the control device 9. The control device 9 controls the material pulling mechanism 821 to pull down the scissor legs which are assembled ineligibly from the chuck 74 into an unqualified product collection box according to the received detection result.

In a preferred embodiment, two blowing nozzles 75 are disposed on the peripheral side of each collet 74, and the included angle between the two blowing nozzles 75 and the center of the collet 74 is less than 180 °. The two blowing nozzles 75 are arranged, the two blowing nozzles 75 are opposite to one side of the outer scissors frame 2, the acting force on the outer scissors frame 2 is increased, and the outer scissors frame 2 can rotate relative to the inner scissors frame 1 under the condition that the inner scissors frame 1 is effectively assembled.

Referring to fig. 4, the clips 74 are arranged in an array on the clip plate 73. Specifically, a plurality of rows of the chucks 74 arranged in the third direction are provided on the material clamping plate 73 along the second direction. Preferably, the third direction is arranged perpendicular to the second direction.

The plurality of detection lenses 811 are provided on the detection table 81 in the third direction, and the plurality of material pulling mechanisms 821 are provided on the material pulling table 82 in the third direction. The distance between the adjacent inspection lenses 811 is the same as the distance between the adjacent chucks 74 arranged in the third direction.

In a preferred embodiment, the distance between the detection lens 811 and the pulling claw 8212 of the material pulling mechanism 821 is twice the distance between adjacent chucks 74 along the third direction. When the N-th row of the chucks 74 arranged on the material clamping plate 73 in the third direction are sleeved on the scissor legs and are opposite to the detection lens 811, the N +2 th row of the chucks 74 on the material clamping plate 73 are sleeved on the scissor legs and are opposite to the pulling claw 8212, so that detection and material pulling can be performed simultaneously, and the detection efficiency is improved.

Referring to fig. 7, the material pulling mechanism 821 includes a pulling claw cylinder 8211 disposed on the material pulling platform 82, and a set of pulling claws 8212 connected to the pulling claw cylinder 8211. The group of the pull claws 8212 are oppositely arranged along the third direction, and under the action of the pull claw cylinder 8211, the group of the pull claws 8212 can be oppositely closed or oppositely opened. When the scissor legs positioned above the scissor legs are unqualified, a group of pulling claws 8212 close and clamp the unqualified scissor legs under the action of the pulling claw air cylinder 8211, and the lifting mechanism connected with the material pulling platform 82 drives the material pulling platform 82 to integrally move downwards, so that the pulling claws 8212 clamp the scissor legs to move downwards, and the scissor legs are pulled down from the chuck 74. An unqualified product collecting box is arranged below the pull claw 8212, and when the pull claw 8212 is opened, the scissor feet fall into the unqualified product collecting box.

In a preferred embodiment, the number of the detection shots 811 comprises four. The four detection lenses 811 are arranged on the detection table 81 at equal intervals along the third direction. The material pulling table 82 is provided with four material pulling mechanisms 821 which are in one-to-one correspondence with the detection lenses 811 and are arranged at equal intervals along the third direction.

The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.