A mobile phone frame positioning hole detection device

Abstract

The present invention relates to the field of hole detection devices, and discloses a detection device for positioning holes of a mobile phone frame, comprising a workbench, the surface of the workbench is provided with a limit mechanism for placing a frame and capable of self-rotation, the surface of the workbench is provided with a detection component for detecting the positioning hole, the interior of the workbench is provided with a control component that is movably fitted with the detection component and is used to drive the limit mechanism to self-rotate, and the interior of the workbench is also provided with a moving component that is fixedly connected to the detection component and corresponds to the position of the control component. The present invention can realize rapid detection of the positioning holes of the mobile phone frame through the cooperation between the limit mechanism, the detection component, the control component and the moving component, and when the detection component cannot smoothly enter the positioning hole, it is unqualified, and at this time the limit mechanism can self-rotate to make the unqualified frame automatically fall down to complete the screening and classification.

Description

Technical Field

[0001] The present invention relates to the technical field of hole detection devices, and in particular to a detection device for positioning holes of a mobile phone frame. Background Art

[0002] At present, during the processing of mobile phone frames, several through holes are opened on the side, which are usually used as SIM card holes, volume button holes, etc. After the subsequent production is completed, a special inspection fixture is needed to inspect the position of the through holes on the frame to ensure that each through hole is opened at the specified position to ensure the smooth installation of subsequent electronic components.

[0003] For example, Chinese patent publication number CN216115701U discloses a mobile phone middle frame hole position detection jig, which includes a jig base, a contoured bottom mold and a contoured pressure cover arranged on the jig base, wherein the mobile phone middle frame can be covered on the contoured bottom mold, and the contoured pressure cover is used to press the mobile phone middle frame on the contoured bottom mold; the front and rear sides of the contoured bottom mold are respectively provided with a first detection component and a second detection component. The utility model can quickly locate and detect various hole positions of the mobile phone middle frame, thereby effectively improving the detection efficiency of the hole positions of the mobile phone middle frame.

[0004] However, after detecting unqualified mobile phone frames, the device is unable to effectively classify unqualified parts from qualified parts, thereby increasing the burden on staff during inspection work and having certain limitations in use.

[0005] Therefore, it is necessary to provide a mobile phone frame positioning hole detection device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a mobile phone frame positioning hole detection device to solve the problems in the above-mentioned background technology that it is impossible to effectively classify unqualified parts and qualified parts, which increases the burden on staff during detection work.

[0007] In order to achieve the above purpose, a mobile phone frame positioning hole detection device is designed, which can screen out unqualified parts in the frame and make the unqualified parts fall off automatically and be separated from the qualified parts.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a mobile phone frame positioning hole detection device, comprising a workbench, the surface of the workbench is provided with a limiting mechanism for placing the frame and capable of self-rotation, the surface of the workbench is penetrated by a detection component for detecting the positioning hole, the interior of the workbench is provided with a control component that is movably fitted with the detection component and is used to drive the limiting mechanism to self-rotate, and the interior of the workbench is also provided with a moving component that is fixedly connected to the detection component and corresponds to the position of the control component; when the detection component moves toward the positioning hole and detects that it is inappropriate, it can drive the control component to move and engage with the moving component, and the moving component drives the limiting mechanism to self-rotate through the control component when the detection component is reset.

[0009] As a further solution of the present invention: the control component includes a cylinder fixedly connected to the limiting mechanism and a telescopic rod slidably matched with the inner wall of the workbench, the movable end of the telescopic rod is fixedly installed with a long piece that is movably fitted with the detection component, the surface of the long piece is fixedly connected with a first pull rope wound on the cylinder, a third spring is fixedly installed between the surface of the long piece and the telescopic rod, and a through hole corresponding to the position of the moving component is opened through the surface of the long piece.

[0010] As a further solution of the present invention: the moving assembly includes a push rod fixedly connected to the inner wall of the workbench and a long rod fixedly connected to the detection assembly, a block corresponding to the position of the push rod is slidably installed inside the long rod, and a fourth spring is fixedly installed between the block and the long rod.

[0011] As a further solution of the present invention: a sharp portion is provided on the surface of the block away from the long rod, the sharp portion protrudes relatively from the block and is inclined toward the push rod, and the push rod is located on a side of the sharp portion close to the detection component.

[0012] As a further solution of the present invention: the size of the through hole is larger than the diameter of the long rod, and the size of the through hole is smaller than the width of the sharp portion of the block plus the diameter of the long rod.

[0013] As a further solution of the present invention: the detection component includes a cylinder fixedly connected to the workbench, the output shaft of the cylinder is fixedly installed with a shell that penetrates the workbench and slides with it, the surface of the shell penetrates and is slidably installed with a detection boss and a wedge rod, one side of the detection boss protrudes relative to the shell, and a first spring is fixedly installed between the other side and the shell, the wedge rod is movably fitted with the detection boss and the control component, and a second spring is fixedly installed between it and the shell.

[0014] As a further solution of the present invention: the detection convex head and the wedge rod are both provided with inclined surfaces on the opposite sides. When the detection convex head moves into the shell, the inclined surface drives the wedge rod to move into the shell and enables the control component to engage with the moving component.

[0015] As a further solution of the present invention: a re-inspection component that can move relative to the detection convex head is movably embedded on the surface of the detection convex head, the re-inspection component extends outside the detection convex head and is fixedly connected to the wedge rod, and an adjustment component that protrudes relative to the shell surface and is fixedly connected to the re-inspection component is penetrated and slidably installed on the surface of the shell.

[0016] As a further solution of the present invention: the distance between the side wall of the working table and the housing that are slidably matched and the adjusting component is equal to the moving distance of the housing and the detection convex head driven by the cylinder.

[0017] As a further solution of the present invention: the limiting mechanism includes a support rod that passes through the workbench and rotates with it, the support rod is fixedly connected to the control component and a torsion spring is sleeved on the outer surface, a base is fixedly installed on the outer surface of the support rod, and a partition is provided on the top sliding sleeve of the base.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation between the limiting mechanism, the detection component, the control component and the moving component, the positioning hole of the mobile phone frame can be quickly detected. When the detection component cannot smoothly enter the positioning hole, it is unqualified. At this time, the limiting mechanism can rotate by itself to make the unqualified frame automatically fall down to complete the screening and classification. It will not affect the qualified frame (that is, the detection component can enter the positioning hole), which can effectively improve the detection efficiency and ensure the qualified rate of the frame, while also reducing the labor burden of the staff, and the overall practicality is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the limiting mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the workbench of the present invention;

[0023] Figure 4 for Figure 3 A magnified view of the structure at center;

[0024] Figure 5 for Figure 3 A magnified view of the structure at B in the middle;

[0025] Figure 6 It is a schematic diagram of the structure of the mobile component of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the housing of the present invention;

[0027] Figure 8 for Figure 7 A magnified view of the structure at C in the middle;

[0028] Fig. 9 It is a schematic diagram of the detection convex head structure of the present invention;

[0029] Fig.10 It is a schematic diagram of the connecting piece structure of the present invention.

[0030] In the figure: 1, workbench; 2, limit mechanism; 3, detection component; 4, control component; 5, moving component; 6, ejector rod; 7, avoidance groove; 8, re-inspection component; 9, slide bar; 10, sixth spring; 11, fourth pull rope; 12, short groove; 13, groove; 201, support rod; 202, base; 203, partition; 301, cylinder; 302, shell; 303, detection convex head; 304, first spring; 305, wedge Rod; 306, second spring; 401, cylinder; 402, first pull rope; 403, long piece; 404, through hole; 405, telescopic rod; 406, third spring; 501, long rod; 502, block; 503, fourth spring; 801, protrusion; 802, fifth spring; 803, second pull rope; 804, connecting piece; 805, steering wheel; 806, third pull rope; 8041, roller; 8042, short board. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] See also Figures 1 to 3 The embodiment of the present invention provides a mobile phone frame positioning hole detection device, which is mainly used to realize the rapid blanking and classification of defective parts after the detection is completed. The detection device includes a workbench 1, and the front end of the workbench 1 has an opening. A limiting mechanism 2 for placing the frame and capable of self-rotation is arranged at the inner center position of the opening. In the normal state, the limiting mechanism 2 is placed horizontally. During the detection, the frame can be placed on the limiting mechanism 2 to realize effective limitation in the four directions of front, back, left, and right, without limitation in the up and down directions.

[0033] A detection component 3 for detecting the frame positioning hole is provided on the left side of the workbench 1 and at the corresponding opening position. A control component 4 fixedly connected to the limiting mechanism 2 and movably fitted with the detection component 3 is provided inside the workbench 1. The control component 4 is used to drive the limiting mechanism 2 to rotate by itself. A moving component 5 fixedly connected to the detection component 3 and capable of moving synchronously with the detection component 3 is also provided inside the workbench 1. At the same time, the moving component 5 corresponds to the position of the control component 4. When the detection component 3 detects that the positioning hole is qualified, the moving component 5 will not contact the final limiting mechanism 2 and the frame with the control component 4. When it is detected that it is not suitable, the control component 4 can be driven to move in the direction of the moving component 5 and engage with the moving component 5. Then, when the detection component 3 drives the moving component 5 to reset, the moving component 5 can drive the limiting mechanism 2 to rotate by itself through the control component 4, so that the defective parts automatically fall off and flow down.

[0034] See also Figures 1 to 6 In this embodiment, preferably: the detection component 3 for realizing the detection includes a cylinder 301 fixedly connected to the inner wall of the workbench 1, and the output shaft of the cylinder 301 is fixedly installed with a shell 302, and the shell 302 penetrates the inner left wall of the workbench 1 and slides with it left and right, so as to enter the inside of the opening. The right side of the shell 302 penetrates and slides left and right with a relatively protruding detection convex head 303, and the left side of the detection convex head 303 and the inner wall of the shell 302 are fixedly installed with a first spring 304. When the cylinder 301 drives the shell 302 to move right, the shell 302 can drive the detection convex head 303 to move synchronously through the first spring 304. When the detection convex head 303 can just enter the positioning hole of the frame, it means that the detection is qualified, and when the detection convex head 303 cannot enter the positioning hole, it means that the detection is unqualified. At this time, the detection convex head 303 will move toward the shell 302 and squeeze the first spring 304 when it is against the frame. The rear end of the housing 302 is penetrated and slidably mounted with a wedge-shaped rod 305 that is movably fitted with the detection convex head 303 and the control component 4. When the detection fails, the detection convex head 303 moves to the left inside the housing 302, which can push the wedge-shaped rod 305 to move (move forward) inside the housing 302. At this time, the wedge-shaped rod 305 can push the control component 4 to move closer to the housing 302. In order to realize the automatic reset of the wedge-shaped rod 305 after it moves forward, a second spring 306 is fixedly mounted between the front end of the wedge-shaped rod 305 and the inner wall of the housing 302.

[0035] In the above structure, the left end of the detection convex head 303 and the right side of the wedge rod 305 are both provided with inclined surfaces, and the detection convex head 303 and the wedge rod 305 are movably fitted together through the inclined surfaces, and the inclined surface is inclined downward to the left ( Figure 4In this case, when the detection convex head 303 moves leftward, the wedge rod 305 can be pushed forward by the inclined surface. In order to avoid the wedge rod 305 from interfering with the workbench 1 when the housing 302 moves left and right, a avoidance groove 7 connected to the opening is provided on the inner left side of the workbench 1, so that the wedge rod 305 can pass smoothly.

[0036] The control assembly 4 for controlling the self-rotation of the limiting mechanism 2 includes a cylinder 401 fixedly connected to the limiting mechanism 2 and a telescopic rod 405 that is slidably matched with the inner rear wall of the workbench 1. The movable end of the telescopic rod 405 is fixedly installed with a long piece 403 that is movably fitted with the wedge rod 305. The left side of the long piece 403 is fixedly connected with a first pull rope 402 wound on the outer surface of the cylinder 401. A third spring 406 is fixedly installed between the rear side of the long piece 403 and the fixed end of the telescopic rod 405. The rear end of the wedge rod 305 is designed in a T shape as a whole and fits with the rear side of the long piece 403. When the wedge rod 305 moves forward relative to the housing 302, it can drive the long piece 403 to move forward relative to the housing 302. At this time, the third spring 406 is in a stretched state. The front side of the long piece 403 corresponds to the position of the movable component 5, and a through hole 404 corresponding to the position of the movable component 5 is opened through the long piece 403 near the left side; at the same time, the long piece 403 has a certain width, so that the wedge rod 305 can always keep in contact with the long piece 403 when the shell 302 moves to the right.

[0037] The moving assembly 5 includes a push rod 6 fixedly connected to the inner wall of the workbench 1 and a long rod 501 fixedly connected to the housing 302. The long rod 501 is provided with a slide groove at the end away from the housing 302 and near the left side. A block 502 corresponding to the position of the push rod 6 is installed inside the slide groove in a sliding manner. A fourth spring 503 is fixedly installed between the right side of the block 502 and the slide groove. When the housing 302 moves to the left, the support rod 201 and the block 502 are driven to move synchronously and move to the front of the through hole 404 of the long piece 403. At this time, if it is detected to be unqualified, the wedge rod 305 drives the long piece 403 to move toward the housing 302, and the through hole 404 moves along the outer surface of the long rod 501 and squeezes the block 502 to move toward the slide groove. After the movement is completed, the block 502 can automatically reset under the action of the fourth spring 503 to clamp the long piece 403. Subsequently, when the housing 302 drives the support rod 201 and the block 502 to reset, the block 502 can abut against the top rod 6 and be pushed by it to move toward the slide groove again. At this time, the long piece 403 can be separated from the long rod 501 and reset under the action of the telescopic rod 405 and the third spring 406.

[0038] In the above structure, the left side of the block 502 has a triangular sharp part, and the triangle is a right triangle. As long as the longest side of the triangle is located on the outside and the longest side is tilted toward the push rod 6, when the long piece 403 moves along the long rod 501, the sharp part can be squeezed to make the block 502 retract into the slide groove; at the same time, the part of the push rod 6 corresponding to the position of the block 502 is staggered from the sharp part of the triangle, so that when the push rod 6 pushes the block 502 to shrink into the slide groove, it will not affect the separation of the long piece 403 and the long rod 501. It can be seen from the above that the size of the through hole 404 is larger than the outer surface of the long rod 501, and the size of the through hole 404 needs to be smaller than the width and length of the sharp part of the block 502, so that the long piece 403 can smoothly move along the long rod 501 and engage with the block 502. In order to avoid interference between the long piece 403 and the long rod 501 and the wedge rod 305, the wedge rod 305 and the through hole 404 are preferably in a state of left-right misalignment or up-down misalignment. At the same time, in order to ensure that the long rod 501 can correctly move to the front of the through hole 404 after moving, the left-right horizontal distance between the long rod 501 and the through hole 404 needs to be equal to the moving stroke of the housing 302 and the detection convex head 303 driven by the cylinder 301, so that after the housing 302 and the detection convex head 303 move to complete the detection, the long rod 501 can also move to the position smoothly.

[0039] The limiting mechanism 2 for placing the mobile phone frame includes a support rod 201 that penetrates the workbench 1 and rotates with it and is fixedly connected to the cylinder 401. The outer surface of the support rod 201 is fixedly installed with a base 202, and the top of the base 202 is slidably installed with a partition 203. The partition 203 can slide up and down relative to the base 202 without falling off. The base 202 is designed in an inverted T shape as a whole and its top is a cross-shaped step design. The partition 203 is slidably installed on the top of the base 202 with a cross-shaped step design and is limited by the bottom of the base 202; when in use, the frame is clamped on the cross-shaped step, and the four directions of its inner wall are respectively in contact with the four ends of the cross-shaped step, and the surface is in contact with the upper surface of the partition 203. The outer surface of the support rod 201 is also sleeved with a torsion spring (not shown in the figure). Under the action of the torsion spring, the base 202 and the partition 203 are in a horizontal state, and the first pull rope 402 on the cylinder 401 is in a rolled-up state. When the long piece 403 moves left with the long rod 501, the first pull rope 402 can be pulled to make the cylinder 401 drive the support rod 201 to rotate, and then the base 202 and the partition 203 rotate synchronously so that the unqualified frame falls automatically. When the first pull rope 402 is introduced from below and wound on the cylinder 401, the support rod 201 can rotate clockwise, and when the first pull rope 402 is introduced from above and wound on the support rod 201, the support rod 201 rotates counterclockwise.

[0040] When in use, first, the frame is buckled on the base 202, and the position limit in the four directions of front, back, left, and right is realized through the top of the cross-shaped step, and then the cylinder 301 (whose stroke is constant) is started to drive the housing 302, the detection convex head 303, the wedge rod 305, the support rod 201 and the block 502 to move right, and the wedge rod 305 and the front side of the long piece 403 are always in a fitting state so that the long piece 403 remains immobile. When the detection convex head 303 can smoothly enter the positioning hole of the frame, it means that the detection is qualified, and the long rod 501 and the block 502 can move to the front of the through hole 404, and the detection convex head 303 and the housing 302 and the wedge rod 305 remain in the original position, so the long piece 403 and the through hole 404 are immobile at this time; then the cylinder 301 drives the housing 302, the detection convex head 303, the wedge rod 305, the support rod 201 and the block 502 to move left and reset, and the mobile phone frame that has passed the detection can be removed.

[0041] When the detection convex head 303 cannot enter the positioning hole, it means that the detection fails. At this time, the detection convex head 303 will contact the frame and be pushed by it to move into the shell 302 and squeeze the first spring 304. When the detection convex head 303 moves to the left of the shell 302, it will push the wedge rod 305 to move forward along the shell 302 and squeeze the second spring 306. When moving forward, the wedge rod 305 can push the long piece 403 to move forward synchronously and stretch the third spring 406; when the long piece 403 moves forward, it moves along the outer surface of the long rod 501, and will first push the block 502 to shrink into the slide groove, and then the block 502 pops out under the action of the fourth spring 503 to jam the long piece 403. Then the cylinder 301 drives the shell 302, the detection convex head 303, the wedge rod 305, the support rod 201 and the block 502 to move left and reset. During the reset, the detection convex head 303 is separated from the frame and automatically resets by moving a certain distance to the right relative to the shell 302 under the action of the first spring 304. At this time, the wedge rod 305 is also automatically reset by moving a certain distance backward relative to the shell 302 under the action of the second spring 306. At this time, the long piece 403 is stuck by the block 502 and moves to the left with the block 502. When moving to the left, the long piece 403 pulls the first pull rope 402 to make the cylinder 401 rotate clockwise and drive the telescopic rod 405 to move synchronously. The cylinder 401 drives the base 202 and the partition 203 to rotate synchronously through the support rod 201. When rotating, the partition 203 slides relatively away from the base 202, so that the frame that fails the inspection automatically falls down. When the long rod 501 is reset along with the shell 302, the block 502 and the push rod 6 are resisted and retracted into the slide groove. At this time, the long piece 403 moves away from the long rod 501 under the action of the third spring 406, separates from the long rod 501 and resumes the fitting state with the wedge rod 305.

[0042] To sum up, through the coordination of structures such as the detection convex head 303, the wedge-shaped rod 305, the long piece 403 and the card block 502, the rapid detection of the positioning hole of the mobile phone frame can be achieved. When the detection convex head 303 cannot smoothly enter the positioning hole, it is unqualified. At this time, the base 202 can be rotated to make the unqualified frame fall automatically to complete the screening and classification. It will not affect the qualified frame (that is, the detection convex head 303 can enter the positioning hole), which can effectively improve the detection efficiency and ensure the qualified rate of the frame, while also reducing the labor burden of the staff, and the overall practicality is higher.

[0043] Embodiment 2:

[0044] See also Figures 1 to 7 On the basis of the first embodiment, in order to further improve the accuracy of detection, the right end of the detection convex head 303 is rectangular when viewed from the right side, and a short slot 12 is provided inside the detection convex head 303, and four grooves 13 are provided on the outer surface of the right end of the detection convex head 303, and the four grooves 13 are connected to the short slot 12 and arranged in a cross along the outer surface of the detection convex head 303, and a re-inspection component 8 that can move relative to the detection convex head 303 and is fixedly connected to the wedge rod 305 is provided between the four grooves 13 and the short slots 12. The rear end of the housing 302 penetrates and slidably installs an adjustment component that protrudes relative to the rear surface of the housing 302 and is fixedly connected to the re-inspection component 8.

[0045] In the above structure, the detection protrusion 303 still starts detection as the shell 302 moves to the left. When the detection protrusion 303 is misaligned with the positioning hole, it can still retract into the shell 302. When the detection protrusion 303 enters the positioning hole accurately, the adjustment component is in contact with the inner left wall of the workbench 1 (the side wall on the left side of the opening) and is acted upon to move forward into the shell 302, providing feasibility for the movement of the re-inspection component 8. If the size of the positioning hole and the detection protrusion 303 is exactly matched (i.e. qualified), the re-inspection component 8 cannot protrude relative to the detection protrusion 303. If the size of the positioning hole is larger than the detection protrusion 303 (i.e. unqualified), the re-inspection component 8 can protrude relative to the detection protrusion 303 under the forward action of the adjustment component, and finally the wedge rod 305 also moves forward relative to the shell 302, driving the long piece 403 to move synchronously and engage with the block 502.

[0046] See also Figures 1 to 9In this embodiment, preferably: the re-inspection component 8 includes a protrusion 801 slidably mounted in the groove 13 and a connector 804 slidably mounted in the short groove 12 and fixedly connected to the adjustment component. The four protrusions 801 are arranged in a cross corresponding to the groove 13. The surface of the protrusion 801 located in the detection convex head 303 is fixedly mounted with a second pull rope 803 fixedly connected to the connector 804. At the same time, a fifth spring 802 is fixedly mounted between the surface and the groove wall of the groove 13. Under the action of the fifth spring 802, the protrusion 801 tends to move outward relative to the detection convex head 303. However, under the limitation of the adjustment component, the connector 804 and the second pull rope 803, the corresponding surface of the protrusion 801 and the detection convex head 303 is finally kept flush, which will not affect the detection convex head 303 from entering the positioning hole. The surface of the connector 804 away from the second pull rope 803 is fixedly mounted with a third pull rope 806 fixedly connected to the wedge rod 305. When the connector 804 moves right along the short groove 12 ( Fig. 9 viewing angle) The wedge rod 305 can be driven to move forward along the shell 302 by the third pull rope 806; in order to ensure that the wedge rod 305 can move forward stably, a steering wheel 805 is rotatably installed on the inner front wall of the shell 302, and the third pull rope 806 is led out from the detection protrusion 303, first bypasses the steering wheel 805 and then is fixedly connected to the front surface of the wedge rod 305.

[0047] The adjustment assembly includes a slide bar 9 that penetrates the rear surface of the housing 302 and slides forward and backward with the housing 302. The rear end of the slide bar 9 is designed in an arc shape and protrudes outward relative to the housing 302. When the housing 302 moves to the left to drive the detection protrusion 303 to move and complete the detection, the slide bar 9 just abuts against the inner left wall of the workbench 1 and can be squeezed into the housing 302. The slide bar 9 is designed in a T shape as a whole. The outer surface of the slide bar 9 and the interior of the housing 302 are provided with a sixth spring 10 for automatic reset of the slide bar 9 after it is retracted into the housing 302. The surface of the slide bar 9 is fixedly installed with a fourth pull rope 11 fixedly connected to the connector 804. The end of the fourth pull rope 11 away from the slide bar 9 extends to the interior of the detection protrusion 303.

[0048] In the above structure, the distance between the slide rod 9 and the inner left wall of the workbench 1 (i.e., the side wall on the left side of the opening) needs to be equal to the moving stroke of the shell 302 driven by the cylinder 301, so that after the detection protrusion 303 enters the positioning hole, the slide rod 9 can drive the re-inspection component 8 to move accordingly through the fourth pull rope 11; at the same time, when the detection protrusion 303 enters the positioning hole, the protrusion 801 corresponds to the position of the hole wall of the positioning hole.

[0049] When in use, first, the frame is inverted to complete the support through the base 202 and the partition 203, and then the cylinder 301 is started to drive the shell 302, the detection boss 303, the protrusion 801, the slide bar 9, the wedge rod 305, and the support rod 201 to move to the right. When the detection boss 303 can smoothly enter the positioning hole of the frame, the slide bar 9 contacts the inner left wall of the workbench 1 (that is, the side wall on the left side of the opening) and shrinks into the shell 302. The slide bar 9 releases the fourth pull rope 11 when moving. The release of the fourth pull rope 11 allows the connecting piece 804 to move away from the shell 302.

[0050] At this time, there are four situations: the first one is that when the size of the positioning hole and the detection convex head 303 are adapted and just correspond (i.e. qualified), because the surface of the convex block 801 has been against the hole wall of the positioning hole, the convex block 801 cannot move relative to the detection convex head 303, and the fifth spring 802, the connecting piece 804 and the third pull rope 806 are also not moving, and the subsequent cylinder 301 can drive the detection convex head 303, the slide bar 9 and the convex block 801 to reset normally; the second one is that when the size of the positioning hole is larger than the detection convex head 303 (i.e. unqualified), because there is a gap between the surface of the convex block 801 and the hole wall of the positioning hole, the convex block 801 cannot move relative to the detection convex head 303. At the spacing, under the action of the fifth spring 802, the protrusion 801 moves out relative to the detection protrusion 303, and finally abuts against the hole wall of the positioning hole. When the protrusion 801 moves, the third pull rope 806 is pulled by the second pull rope 803 and the connecting member 804, so that the wedge rod 305 is retracted and advanced into the shell 302. After the wedge rod 305 advances, it pushes the long piece 403 to move forward synchronously so that it engages with the block 502 on the long rod 501. Finally, when the cylinder 301 is reset, it pulls the pull rope through the long piece 403 to finally rotate the base 202, so that the unqualified frame with a larger positioning hole size can also be screened out and fall. The third and fourth types are respectively that the size of the positioning hole and the detection protrusion 303 are adapted but staggered and the positioning hole is smaller than the size of the detection protrusion 303 (also equivalent to the staggered situation in the third type). This part of the working process is the same as the unqualified detection in Example 1, and will not be repeated here.

[0051] In Example 1, when the detection boss 303 can enter the positioning hole, it is judged to be qualified. At this time, the base 202 will not rotate to cause the frame to fall. However, when the size of the positioning hole is larger than the detection boss 303, the detection boss 303 can also enter smoothly but the positioning hole is unqualified. That is, the process in Example 1 is only applicable to the detection when the size of the positioning hole is less than or equal to the detection boss 303. When the size of the positioning hole is larger than the detection boss 303, it is impossible to screen out unqualified frames well, and there are certain limitations in use. Compared with the first embodiment, through the cooperation of structures such as the detection boss 303, the protrusion 801, the sliding rod 9 and the connecting piece 804, when the size of the positioning hole is larger than the detection boss 303, as the detection boss 303 enters the positioning hole, the protrusion 801 can be moved relative to the detection boss 303 to abut against the hole wall of the positioning hole, thereby driving the wedge rod 305 to move to complete the engagement of the long piece 403 with the block 502 and the subsequent rotation of the base 202, so that even if the detection boss 303 does not shrink relative to the shell 302, the wedge rod 305 can still move accordingly, and then the positioning holes with a size larger than the detection boss 303 can also be successfully screened out. It is effectively suitable for the situation where the size of the positioning hole in the unqualified frame is larger than the detection boss 303, and can accurately detect frames with positioning holes of different sizes. At the same time, combined with the movement of the detection boss 303, it meets more needs in actual use.

[0052] Embodiment three:

[0053] See also Figures 1 to 10 On the basis of the second embodiment, in order to ensure the moving stroke of the wedge rod 305 when the size of the positioning hole is larger than the detection convex head 303, the connecting member 804 includes a roller 8041, the roller 8041 has a central axis and is movably sleeved on the central axis, and the rear end of the central axis is fixedly connected with a short plate 8042, and the short plate 8042 and the roller 8041 can slide back and forth along the short slot 12; the fourth pull rope 11 extends to the inside of the detection convex head 303 and is fixedly connected to the front end of the central axis. Of course, the installation positions of the fourth pull rope 11 and the short plate 8042 can also be swapped. At this time, the third pull rope 806 is fixedly connected to the short plate 8042, and the third pull rope 806 enters the detection convex head 303 and bypasses the roller 8041 and is fixedly connected to the groove wall of the short slot 12, that is, at this time, the third pull rope 806 cooperates with the roller 8041, the short slot 12 and the short plate 8042 to form a movable pulley group.

[0054] See also Figures 1 to 10In this embodiment, preferably: the size of the short plate 8042 can be set to be compatible with the short groove 12, at this time the diameter of the roller 8041 is smaller than the size of the short plate 8042, the roller 8041 and the short plate 8042 can slide smoothly along the short groove 12, and the roller 8041 can rotate in the short groove 12; of course, the diameter of the roller 8041 can also be set to be compatible with the short groove 12, at this time the size of the roller 8041 is smaller than the diameter of the roller 8041, the roller 8041 and the short plate 8042 can still slide smoothly along the short groove 12, and the roller 8041 can still rotate in the short groove 12.

[0055] During use, when the sliding rod 9 contacts the inner left wall of the workbench 1 (i.e., the side wall on the left side of the opening) and shrinks into the shell 302, the fourth pull rope 11 is released. At this time, if the protrusion 801 moves out relative to the detection protrusion 303 and pulls the short plate 8042 and the roller 8041 through the second pull rope 803, the roller 8041 moves along the short groove 12 in the direction away from the shell 302 and pulls the pull rope. Due to the setting of the sliding roller 8041, the moving stroke of the third pull rope 806 is equal to twice that of the roller 8041. Because the moving stroke of the third pull rope 806 becomes larger, it can stably drive the wedge rod 305 to move forward along the shell 302, ensuring the forward distance of the long piece 403 so that the long piece 403 and the block 502 are successfully engaged.

[0056] In the second embodiment, although it can be applied to the rapid detection of positioning holes of different sizes, because the distance between the positioning hole and the protrusion cannot be too large (the size of the positioning hole is larger than the detection protrusion 303 at this time), the movement range of the wedge rod 305 driven by the second pull rope 803, the connecting piece 804 and the third pull rope 806 is very limited, and it may not necessarily drive the long piece 403 to successfully engage with the block 502. If the two cannot engage, it will affect the subsequent automatic unloading of unqualified frames, and there are certain limitations in use. Compared with the second embodiment, through the cooperation of the second pull rope 803, the short plate 8042, the roller 8041 and the third pull rope 806 and other structures, a movable pulley group is formed so that when the second pull rope 803 drives the roller 8041 to move a certain distance, the third pull rope 806 can move the roller 8041 twice the distance, thereby effectively ensuring the moving stroke of the wedge rod 305, ensuring the stable engagement of the long piece 403 and the block 502 and the smooth automatic unloading of the unqualified frame, and also ensuring the normal progress of the detection work. The overall operation is combined with the movement of the second pull rope 803 and the fourth pull rope 11, and has stronger applicability.

Claims

1. A mobile phone frame positioning hole detection device, comprising a workbench, characterized in that: The surface of the workbench is provided with a limit mechanism for placing a frame and capable of self-rotation, a detection component for detecting the positioning hole is provided through the surface of the workbench, a control component that is movably fitted with the detection component and is used to drive the limit mechanism to self-rotate is provided inside the workbench, and a moving component that is fixedly connected to the detection component and corresponds to the position of the control component is also provided inside the workbench; when the detection component moves toward the positioning hole and detects that it is not suitable, it can drive the control component to move and engage with the moving component, and the moving component drives the limit mechanism to self-rotate through the control component when the detection component is reset; The control assembly includes a cylinder fixedly connected to the limiting mechanism and a telescopic rod slidably matched with the inner wall of the workbench, a long piece movably fitted with the detection assembly is fixedly installed on the movable end of the telescopic rod, a first pull rope wound on the cylinder is fixedly connected to the surface of the long piece, a third spring is fixedly installed between the surface of the long piece and the telescopic rod, and a through hole corresponding to the position of the moving assembly is opened through the surface of the long piece; The moving assembly includes a push rod fixedly connected to the inner wall of the workbench and a long rod fixedly connected to the detection assembly, a block corresponding to the position of the push rod is slidably installed inside the long rod, and a fourth spring is fixedly installed between the block and the long rod; The detection component includes a cylinder fixedly connected to the workbench, and the output shaft of the cylinder is fixedly installed with a shell that passes through the workbench and slidably cooperates with it. A detection boss and a wedge rod pass through and are slidably installed on the surface of the shell. One side of the detection boss protrudes relative to the shell, and a first spring is fixedly installed between the other side and the shell. The wedge rod is movably fitted with the detection boss and the control component, and a second spring is fixedly installed between it and the shell.

2. The mobile phone frame positioning hole detection device according to claim 1, characterized in that: The surface of the clamping block away from the long rod is provided with a sharp portion, which protrudes relatively from the clamping block and is inclined toward the push rod, and the push rod is located on a side of the sharp portion close to the detection component.

3. The mobile phone frame positioning hole detection device according to claim 1, characterized in that: The size of the through hole is larger than the diameter of the long rod, and the size of the through hole is smaller than the width of the sharp portion of the block plus the diameter of the long rod.

4. The mobile phone frame positioning hole detection device according to claim 1, characterized in that: The detection convex head and the wedge-shaped rod are both provided with inclined surfaces on the opposite sides. When the detection convex head moves into the shell, the inclined surface drives the wedge-shaped rod to move into the shell and enables the control component to engage with the moving component.

5. The mobile phone frame positioning hole detection device according to claim 1, characterized in that: The surface of the detection convex head is movably engaged with a re-inspection component that can move relative to the detection convex head. The re-inspection component extends outside the detection convex head and is fixedly connected to the wedge rod. The surface of the shell is penetrated and slidably installed with an adjustment component that protrudes relative to the shell surface and is fixedly connected to the re-inspection component.

6. The mobile phone frame positioning hole detection device according to claim 5, characterized in that: The distance between the side wall of the working table and the housing that are slidably matched and the adjusting component is equal to the moving distance of the housing and the detection convex head driven by the cylinder.

7. The mobile phone frame positioning hole detection device according to any one of claims 4 to 6, characterized in that: The limiting mechanism includes a support rod that passes through the workbench and rotates with it. The support rod is fixedly connected to the control component and a torsion spring is sleeved on the outer surface. A base is fixedly installed on the outer surface of the support rod, and a partition is slidingly sleeved on the top of the base.

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