A screw straightness sorting device

Abstract

The utility model discloses a screw straightness sorting equipment including work table, drive motor and divider, the output of drive motor is linked with the input shaft of divider, the output of divider is provided with flange plate, is provided with the optional carousel on the flange plate, and the edge of carousel is evenly spaced and is provided with the notched, is provided with the vibration feeding mechanism, head detection mechanism, size detection mechanism, straightness detection mechanism, material receiving mechanism and waste recovery mechanism along the rotation direction of carousel on the work table, and straightness detection mechanism includes the second pressure head set up in the upper portion of carousel, the positioning block set up below carousel and three displacement sensing devices along the vertical direction interval, and a first motor drives second pressure head and makes screw rotate around the own axis, and displacement sensing device is contacted with the stem portion of screw, and material receiving mechanism includes the material receiving box set up on the edge of carousel and the push material pneumatic cylinder set up above carousel, the utility model discloses improve detection precision and detection efficiency, and is suitable for different specifications screw.

Description

Technical Field

[0001] This utility model relates to the field of sorting technology, and in particular to a screw straightness sorting device. Background Technology

[0002] Screws are core fasteners in fields such as machinery manufacturing, electronic equipment, and construction engineering. Their dimensional accuracy and appearance defects directly affect assembly quality and product reliability. Manual inspection is not only inefficient but also prone to missed inspections and misjudgments due to fatigue, making it difficult to meet the needs of mass production. Traditional mechanical inspection devices can only screen for dimensional deviations in a single dimension, lacking versatility and failing to meet the requirements of multi-specification, high-precision sorting. With the continuous improvement of automated production levels, the need for efficient and accurate detection and sorting of screw appearance defects and straightness is becoming increasingly urgent. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a screw straightness sorting device that improves detection accuracy and efficiency and is applicable to screws of different specifications.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A screw straightness sorting device includes a worktable, a drive motor, and a divider. The output end of the drive motor is connected to the input shaft of the divider. The output end of the divider is provided with a flange, and an optional turntable is provided on the flange. The edge of the turntable is evenly spaced with slots. The worktable is equipped with a vibratory feeding mechanism, a head detection mechanism, a size detection mechanism, a straightness detection mechanism, a receiving mechanism, and a waste recycling mechanism along the rotation direction of the turntable. The vibratory feeding mechanism is used to place screws into the slots. The head detection mechanism includes a first industrial camera for photographing the appearance of the screw head. The size detection mechanism includes a second industrial camera and a first pressure head positioned above the turntable. The first pressure head is used to press down on the screw head, and the second industrial camera is used to photograph the side dimensions of the screw; the straightness detection mechanism includes a second pressure head set above the turntable, a positioning block set below the turntable, and three displacement sensing devices set at intervals along the vertical direction. The second pressure head is used to clamp the head of the screw, the positioning block is used to limit the position of the tail of the screw, a first motor drives the second pressure head to make the screw rotate around its own axis, and the displacement sensing devices contact the shank of the screw; the receiving mechanism includes a receiving box set on the edge of the turntable and a pushing cylinder set above the turntable. The output end of the pushing cylinder is provided with a push plate near the turntable, and the push plate is used to push qualified screws into the receiving box.

[0006] Preferably, the straightness detection mechanism includes a first cylinder and a second cylinder located below the turntable. The output end of the first cylinder is provided with a vertical first guide rod, and the top end of the first guide rod is provided with a first support block. The second pressure head and the first motor are disposed on the first support block. The output end of the second cylinder is provided with a vertical second guide rod, and the top end of the second guide rod is provided with a second support block located below the first support block. The positioning block is connected to the second support block.

[0007] Preferably, linear bearings are provided at both ends of the second support block, and the first guide rod passes through the linear bearings.

[0008] Preferably, the positioning block includes a base plate, and the base plate is provided with a protrusion surrounding the screw, the inner diameter of the protrusion being adapted to the shank of the screw.

[0009] Preferably, the straightness detection mechanism includes a support rod and three adjusting sliders that are vertically slidably connected to the support rod. The three displacement sensing devices are respectively connected to the adjusting sliders. Each displacement sensing device includes a support fixedly connected to the adjusting slider and a guide rail horizontally slidably connected to the support. A rotary bearing is provided at the end of the guide rail near the screw, and a stop is provided at the end of the guide rail away from the screw. A push cylinder is provided on the support, and the push cylinder is used to push the stop to move the guide rail away from the screw. A return spring is sleeved on the guide rail between the rotary bearing and the support. A displacement sensor for sensing the displacement of the guide rail is provided on the adjusting slider.

[0010] Preferably, a material-blocking cylinder is provided on one side of the receiving box, and a baffle is provided at the output end of the material-blocking cylinder. When the material-blocking cylinder is pushed out, the baffle blocks the slot to prevent the screw from coming out. When the material-blocking cylinder is retracted, the baffle leaves the slot and the screw is pushed out by the push plate.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model screw straightness sorting device includes a worktable, a drive motor, and a divider. The output end of the drive motor is connected to the input shaft of the divider. The output end of the divider is equipped with a flange, and the flange is equipped with an optional turntable suitable for products of different specifications. The worktable is equipped with a vibration feeding mechanism, a head detection mechanism, a size detection mechanism, a straightness detection mechanism, a receiving mechanism, and a waste recycling mechanism along the rotation direction of the turntable, integrating multiple functions to efficiently and orderly detect and sort screws. The straightness detection mechanism includes a second pressure head set above the turntable, a positioning block set below the turntable, and three displacement sensing devices spaced vertically, improving the accuracy of straightness detection and flexibly adapting to screws of different lengths. The receiving mechanism includes a receiving box set at the edge of the turntable and a pushing cylinder set above the turntable. The output end of the pushing cylinder is equipped with a push plate near the turntable. The push plate is used to push qualified screws into the receiving box, avoiding the adverse effects of moisture in the air valve causing screw rust and improving the reliability of the equipment. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0014] Appendix Figure 1 This is a perspective view of the screw straightness sorting device of this utility model;

[0015] Appendix Figure 2 This is a perspective view of the screw straightness sorting device of this utility model;

[0016] Appendix Figure 3 This is a perspective view of the head detection mechanism of the screw straightness sorting device of this utility model;

[0017] Appendix Figure 4 For the appendix Figure 1 A magnified view of part A;

[0018] Appendix Figure 5 For the appendix Figure 2 A magnified view of section B;

[0019] Appendix Figure 6 This is a perspective view of the straightness detection mechanism of the screw straightness sorting device of this utility model;

[0020] Appendix Figure 7 This is a perspective view of the straightness detection mechanism of the screw straightness sorting equipment of this utility model.

[0021] The components include: 1. Workbench; 2. Flange; 3. Turntable; 31. Groove; 4. Vibrating feeding mechanism; 5. Head detection mechanism; 51. First industrial camera; 6. Dimension detection mechanism; 61. First pressure head; 62. Second industrial camera; 7. Straightness detection mechanism; 71. First cylinder; 72. Second cylinder; 73. First guide rod; 74. First support block; 741. First motor; 742. Second pressure head; 75. Second support block; 751. Positioning block; 752. Protrusion. 76. Displacement sensing device; 761. Support; 762. Guide rail; 763. Rotary bearing; 764. Stop block; 765. Push cylinder; 766. Return spring; 767. Displacement sensor; 77. Linear bearing; 78. Support rod; 79. Adjusting slider; 80. Second guide rod; 8. Material receiving mechanism; 81. Material receiving box; 82. Push cylinder; 83. Push plate; 9. Waste recycling mechanism; 10. Screw; 11. Stop cylinder; 12. Baffle; 13. Side abutment structure. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0024] Furthermore, it should be noted that the directional terms such as left, right, up, and down used in the embodiments of this utility model are only relative concepts or references to the normal use of the product, and should not be considered restrictive. The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] As attached Figure 1 Appendix Figure 2The diagram shows a screw straightness sorting device according to this utility model, including a workbench 1, a drive motor, and a divider. The output end of the drive motor is connected to the input shaft of the divider, and the output end of the divider is connected to a flange 2. An optional turntable 3 is installed on the flange 2. The edge of the turntable 3 has evenly spaced slots 31 for placing screws 10. When the screws 10 to be sorted are of different specifications, the original turntable 3 can be disassembled and replaced with a turntable 3 of a suitable size for the slots 31, improving the applicability of the equipment. A vibrating feeding mechanism 4, a head detection mechanism 5, a size detection mechanism 6, a straightness detection mechanism 7, a receiving mechanism 8, and a waste recycling mechanism 9 are installed on the workbench 1 along the rotation direction of the turntable 3. The vibrating feeding mechanism 4 is used to place the screws 10 in the slots 31, so that the head of the screw 10 is above the turntable 3 and the shaft is below the turntable 3. The screws 10 rotate with the turntable 3 to the subsequent work station.

[0026] As attached Figure 3 As shown, the head detection mechanism 5 includes a first industrial camera 51 and a ring light source. When the screw 10 moves to below the first industrial camera 51, the first industrial camera 51 takes a picture of the appearance of the screw 10 head to detect the size at that location.

[0027] As attached Figure 5 As shown, the size detection mechanism 6 includes a second industrial camera 62 and a first pressure head 61 located above the turntable 3. When the screw 10 moves to the first pressure head 61, the first pressure head 61 presses down on the head of the screw 10 to keep the screw 10 stable as a whole. The two second industrial cameras 62 capture the side dimensions of the screw 10.

[0028] As attached Figure 6 Appendix Figure 7As shown, the straightness detection mechanism 7 includes a second pressure head 742 mounted above the turntable 3, a positioning block 751 located below the turntable 3, and three displacement sensing devices 76 spaced apart along the vertical direction. The second pressure head 742 is used to clamp the head of the screw 10, the positioning block 751 is used to limit the position of the tail of the screw 10, a first motor 741 drives the second pressure head 742 to rotate the screw 10 around its own axis, and the displacement sensing devices 76 contact the shank of the screw 10. Specifically, the straightness detection mechanism 7 includes a first cylinder 71 and a second cylinder 72 located below the turntable 3. A vertical first guide rod 73 is mounted on the output end of the first cylinder 71, and a first support block 74 is mounted on the top of the first guide rod 73. A second pressure head 742 and a first motor 741 are mounted on the first support block 74. A vertical second guide rod 80 is connected to the output end of the second cylinder 72, and a second support block 75 located below the first support block 74 is mounted on the top of the second guide rod 80. A positioning block 751 is connected to the second support block 75. Linear bearings 77 are mounted at both ends of the second support block 75, and the first guide rod 73 passes through the linear bearings 77, making the movement smoother and more stable. The positioning block 751 includes a base plate, on which a protrusion 752 surrounding the screw 10 is formed. The inner diameter of the protrusion 752 is adapted to the shank of the screw 10. When the screw 10 moves to the straightness detection mechanism 7, the second pressure head 742 clamps the head of the screw 10, and the second support block 75 moves upward to a position that adapts to the length of the screw 10, so that the tail of the screw 10 is located between the protrusions 752 of the positioning block 751, preventing the screw 10 from shaking when rotating. In addition, there is a side abutment structure 13 driven by a cylinder on the side of the screw 10 that abuts against the rod of the screw 10, further ensuring the stability of the screw 10 when rotating, making the straightness detection results more accurate.

[0029] The straightness detection mechanism 7 includes a support rod 78 and three adjusting sliders 79 vertically slidably connected to the support rod 78. Three displacement sensing devices 76 are respectively connected to the adjusting sliders 79. The displacement sensing devices 76 can be adjusted to different heights according to the length of the screw 10, accommodating screws 10 of different lengths. Each displacement sensing device 76 includes a support 761 fixedly connected to the adjusting slider 79 and a guide rail 762 horizontally slidably connected to the support 761. A rotating bearing 763 is installed at the end of the guide rail 762 closest to the screw 10, making the contact with the screw 10 smoother and preventing wear on the threaded surface. A downwardly extending stop 764 is installed at the end of the guide rail 762 away from the screw 10. A pushing cylinder 765 is installed on the support 761, used to push the stop 764 to move the guide rail 762 away from the screw 10. A return spring 766 is sleeved on the guide rail 762 between the rotating bearing 763 and the support 761. When the screw 10 has not moved below the second pressure head 742, the push cylinder 765 pushes the guide rail 762 away to avoid it colliding with the approaching screw 10. When the screw 10 is in place, the push cylinder 765 retracts, and under the action of the return spring 766, the guide rail approaches the screw 10. The rotating bearing 763 contacts the surface of the screw 10. The adjusting slider 79 is equipped with a displacement sensor 767 for sensing the displacement of the guide rail 762, thereby obtaining the straightness data of the screw.

[0030] The receiving mechanism 8 includes a receiving box 81 mounted on the edge of the turntable 3 and a pushing cylinder 82 located above the turntable 3. The output end of the pushing cylinder 82 is connected to a push plate 83 near the turntable 3. The push plate 83 is used to push qualified screws 10 from the slot 31 into the receiving box 81. (See attached diagram) Figure 4 As shown, a material receiving box 81 is equipped with a material blocking cylinder 11 on one side. A baffle 12 is installed at the output end of the material blocking cylinder 11. When the material blocking cylinder 11 is pushed out, the baffle 12 blocks the slot 31 to prevent the screw 10 from coming out. If the screw 10 is qualified, the material blocking cylinder 11 retracts and the baffle 12 leaves the slot 31, so that the screw 10 is pushed out by the push plate 83, so as to prevent unqualified products from being mixed into qualified materials.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screw straightness sorting device, characterized in that: The system includes a worktable, a drive motor, and a divider. The output end of the drive motor is connected to the input shaft of the divider. The output end of the divider is equipped with a flange, and an optional turntable is mounted on the flange. The turntable has evenly spaced slots along its edge. Along the rotation direction of the turntable, the worktable is equipped with a vibratory feeding mechanism, a head detection mechanism, a size detection mechanism, a straightness detection mechanism, a receiving mechanism, and a waste recycling mechanism. The vibratory feeding mechanism is used to place screws into the slots. The head detection mechanism includes a first industrial camera for photographing the appearance of the screw head. The size detection mechanism includes a second industrial camera and a first pressure head positioned above the turntable. The first pressure head is used for... The screw head is pressed down, and the second industrial camera is used to photograph the side dimensions of the screw; the straightness detection mechanism includes a second pressure head set above the turntable, a positioning block set below the turntable, and three displacement sensing devices set at intervals along the vertical direction. The second pressure head is used to clamp the head of the screw, the positioning block is used to limit the position of the tail of the screw, a first motor drives the second pressure head to rotate the screw around its own axis, and the displacement sensing devices are in contact with the shank of the screw; the receiving mechanism includes a receiving box set on the edge of the turntable and a pushing cylinder set above the turntable. The output end of the pushing cylinder is provided with a push plate near the turntable, and the push plate is used to push qualified screws into the receiving box.

2. The screw straightness sorting device according to claim 1, characterized in that: The straightness detection mechanism includes a first cylinder and a second cylinder located below the turntable. The output end of the first cylinder is provided with a vertical first guide rod, and the top end of the first guide rod is provided with a first support block. The second pressure head and the first motor are provided on the first support block. The output end of the second cylinder is provided with a vertical second guide rod, and the top end of the second guide rod is provided with a second support block located below the first support block. The positioning block is connected to the second support block.

3. The screw straightness sorting device according to claim 2, characterized in that: Linear bearings are provided at both ends of the second support block, and the first guide rod passes through the linear bearings.

4. The screw straightness sorting device according to claim 2, characterized in that: The positioning block includes a base plate, on which a protrusion surrounds the screw, the inner diameter of which is adapted to the shank of the screw.

5. The screw straightness sorting device according to claim 1, characterized in that: The straightness detection mechanism includes a support rod and three adjusting sliders that are vertically slidably connected to the support rod. Three displacement sensing devices are respectively connected to the adjusting sliders. Each displacement sensing device includes a support fixedly connected to the adjusting slider and a guide rail horizontally slidably connected to the support. A rotating bearing is provided at the end of the guide rail near the screw, and a stop is provided at the end of the guide rail away from the screw. A pushing cylinder is provided on the support to push the stop, causing the guide rail to move away from the screw. A return spring is sleeved on the guide rail between the rotating bearing and the support. A displacement sensor for sensing the displacement of the guide rail is provided on the adjusting slider.

6. The screw straightness sorting device according to claim 1, characterized in that: A material-blocking cylinder is provided on one side of the receiving box. A baffle is provided at the output end of the material-blocking cylinder. When the material-blocking cylinder is pushed out, the baffle blocks the slot to prevent the screw from coming out. When the material-blocking cylinder is retracted, the baffle leaves the slot and the screw is pushed out by the push plate.

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