High-precision CCD (Charge Coupled Device) visual screw locking machine

Abstract

The utility model provides a high-precision CCD visual locking screw machine which comprises a workbench, side columns connected to four corners of the bottom end of the workbench, a base connected to the bottom ends of the side columns, a supporting column installed in the center of the base, a displacement assembly installed at the top end of the supporting column, a feeding barrel installed at the left end of the top end of the supporting column, and a limiting assembly installed at the front end of the top end of the supporting column. A rotating disc is installed in the center of the top end of the workbench, a discharging barrel is installed in the center of the right side of the bottom end of the workbench, a CCD visual positioning camera is installed on the displacement assembly, and the high-precision CCD visual screw locking machine is provided with the displacement assembly, the limiting assembly and other structures, so that the screw locking machine can move freely and limit material displacement.

Description

Technical Field

[0001] The utility model relates to the technical field of screw locking machines, and more specifically, to a high-precision CCD vision screw locking machine. Background Art

[0002] Screws are one of the common components in our lives, which can connect two components, and this connection process is called screwing. In the production process of mobile phone casings, several screws are often required for fixation. The screws used for mobile phone casings are generally small, and it is very easy to miss screwing when manually screwing. Therefore, a screw locking machine with a CCD vision positioning function is often used to tighten the screws of the mobile phone casing to avoid missing screwing. In the prior art, existing screw locking machines often only have several placement slots. Workers put the mobile phone casings into the slots, then start the screw locking machine to tighten the screws. After the tightening is completed, the casings with tightened screws need to be taken out and the casings to be screwed need to be put in. During the process of taking and placing, the screw locking machine is in a stopped state and does not work, resulting in a reduction in processing efficiency. Moreover, manual loading and unloading also increases the labor intensity and the labor force input.

[0003] Regarding the above problems and the technical problem of manual loading and unloading of existing screw locking machines, after a large number of searches, a screw locking machine with a CCD vision positioning function with the patent number CN216178259U was found, which includes a base. Two support plates are welded on the upper surface of the base. An operating table is jointly welded on the upper surfaces of the two support plates. The operating table is rotatably connected through a bearing to a rotating rod. A rotating disk is welded on the upper surface of the rotating rod. Several placement holes are opened in the rotating disk. An L-shaped plate is welded on the side wall of the operating table. A servo motor is welded on the side wall of one of the support plates through a bracket. The output shaft of the servo motor is welded to a rotating shaft. The rotating shaft is rotatably connected to the L-shaped plate through a bearing. A disk is in interference fit with the rotating shaft. An installation plate is slidably connected through the L-shaped plate. This utility model can ensure the continuity of the production and processing process, thereby greatly improving the production and processing efficiency. At the same time, it can automatically load and unload, avoiding manual operation, greatly reducing the labor intensity and reducing the input of labor cost. However, the automatic screw locking machine provided by this patent will adhere to the object and take the object away together after tightening the screws on the object, resulting in the displacement of the mobile phone casing. At this time, the automatic screw locking machine will not be able to tighten the screws according to the position located by the previous CCD vision positioning device.

[0004] The utility model can play a role in enabling the screw locking machine to move freely and restricting the displacement of materials. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the technical problems raised in the above-mentioned background technology, and to provide a high-precision CCD vision screw locking machine, so as to achieve the effect of enabling the screw locking machine to move freely and restricting the displacement of materials.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A high-precision CCD vision screw locking machine, comprising: a workbench, four corners of the bottom end of the workbench are connected with side columns, the bottom ends of the side columns are connected with a base, a support column is installed in the center of the base, a displacement component is installed at the top end of the support column, a feeding cylinder is installed at the left end of the top end of the support column, a limiting component is installed at the front end of the top end of the support column, a turntable is installed in the center of the top end of the workbench, and a discharge cylinder is installed at the center of the right side of the bottom end of the workbench. A CCD vision positioning camera is installed on the displacement component.

[0007] Further preferred solution: The displacement component includes: a top plate, a second motor, a threaded column, a first guide rod and a moving plate. A threaded column is installed in the center of the top end of the support column, and a first guide rod is installed on each of the left and right sides of the threaded column. A top plate is installed at the top end of the threaded column, and a second motor is installed at the top end of the top plate. The output end of the second motor is connected with the threaded column.

[0008] Further preferred solution: The displacement component further includes: a second guide rod, a threaded rod, a moving block and a third motor. A moving plate is installed in the center of the threaded column. A displacement hole is opened at the center of the front end of the moving plate. A threaded rod is installed on the left side inside the displacement hole, and a second guide rod is installed on the right side inside the displacement hole. A third motor is installed at the front end of the moving plate. The output end of the third motor is connected with the threaded rod, and a moving block is installed in the center of the threaded rod.

[0009] Further preferred solution: The displacement component further includes: a rotating disc, a screw locking machine and a rotating shaft. A rotating shaft is installed at the bottom end of the moving block, a rotating disc is installed at the bottom end of the rotating shaft, a screw locking machine is installed at the bottom end of the rotating disc, and the axis of the rotating shaft and the rotating disc are not on the same straight line.

[0010] Further preferred solution: A connecting block is installed at the right end of the moving plate, and a CCD vision positioning camera is installed at the bottom end of the connecting block.

[0011] Further preferred solution: The limiting component includes: a limiting frame, mounting holes, springs, a connecting frame, a limiting block and a limiting column. A limiting frame is installed at the front end of the top end of the support column. Mounting holes are opened at the four corners of the bottom end of the front end of the limiting frame. Springs are installed in the mounting holes. The bottom ends of the springs are connected with limiting columns. A connecting frame is installed at the outer bottom end of the limiting column, and a limiting block is installed at the center of the left side of the connecting frame.

[0012] Further preferred solution: The top end of the turntable is a rotating disk, and a number of material grooves are equidistantly arranged around the center of the rotating disk. A discharge hole is opened at the right end of the workbench, and a discharge chute is installed at the bottom end of the discharge hole.

[0013] Further preferred solution: A connecting shaft is connected to the bottom end of the rotating disk, a connecting gear is connected to the bottom end of the connecting shaft, a first motor is installed at the top end of the base, and a driving gear meshing with the connecting gear is connected to the output end of the first motor. An installation through hole is opened in the center of the rotating disk, and a support column is installed in the installation through hole.

[0014] Beneficial effects:

[0015] 1. By providing a displacement component, the effect of enabling the screw locking machine to move freely is achieved. The second motor drives the threaded column to rotate. A first threaded through hole matching the threaded column is opened on the moving plate. When the threaded column rotates, under the limitation of the first guide rod, the moving plate moves up or down. Then, the third motor drives the screw rod column to rotate. A second threaded through hole matching the threaded rod is opened on the moving block. When the threaded rod rotates, under the limitation of the second guide rod, the moving block moves forward or backward. A small motor is installed inside the moving block, which can drive the rotating shaft to rotate, thereby driving the rotating disk to rotate, and then driving the screw locking machine to rotate. Cooperating with other structures of the displacement component, the screw locking machine can move freely according to requirements;

[0016] 2. By providing a limiting component, the effect of restricting the displacement of the material is achieved. When the material trough moves to the designated position, the limiting column is pressed into the material trough under the elastic force of the spring to press the material tightly. The limiting frame connects all the limiting columns, so that only when the material trough moves to the designated position, the limiting column will be pressed into the material trough under the elastic force of the spring to limit the material, and it will not happen that before the material trough moves to the designated position, some limiting columns enter the material trough in advance, resulting in scratches on the material; After the screw is tightened, the rotating disk rotates, the top end of the material trough touches the arc surface of the limiting block, so that the limiting block moves upward, thereby driving the limiting frame to move upward, and then driving the limiting column to move upward. Then continue to rotate the rotating disk. At this time, the material trough will touch the arc surface at the bottom end of the limiting column, and at this time the limiting groove will directly push the limiting column upward to complete the removal of the limiting device;

[0017] 3. In summary, for this high-precision CCD vision screw locking machine, by providing structures such as a displacement component and a limiting component, it can play the role of enabling the screw locking machine to move freely and restricting the displacement of the material. Description of the drawings

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention.

[0019] Figure 2 It is a schematic three-dimensional structure diagram of the rotating disk of the present invention.

[0020] Figure 3 It is a schematic three-dimensional structure diagram of the displacement component of the present invention.

[0021] Figure 4Schematic three-dimensional structure diagram of the partial displacement component of the present utility model.

[0022] Figure 5 Schematic cross-sectional structure diagram of the partial structure of the present utility model.

[0023] Figure 6 Schematic exploded structure diagram of the limit component of the present utility model.

[0024] Figure 1-6 Wherein: 1, workbench; 2, side column; 3, base; 4, first motor; 5, support column; 6, turntable; 601, rotating disk; 602, material groove; 603, mounting through hole; 604, connecting gear; 605, connecting shaft; 7, displacement component; 701, top plate; 702, second motor; 703, threaded column; 704, first guide rod; 705, moving plate; 706, connecting block; 707, CCD vision positioning camera; 708, second guide rod; 709, threaded rod; 710, moving block; 711, third motor; 712, rotating disk; 713, screw locking machine; 714, rotating shaft; 8, limit component; 801, limit frame; 802, mounting hole; 803, spring; 804, connecting frame; 805, limit block; 806, limit column; 9, feeding cylinder; 10, discharge chute. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying Figure 1 - Figure 6 drawings in the embodiments of the present utility model.

[0026] Please refer to Figure 1-6, in the embodiment of the present utility model, a high-precision CCD vision screw locking machine includes: a workbench 1, which serves as the loading platform of the entire machine. The workbench 1 provides a stable operating foundation and ensures the smoothness of the machine during operation. The side column 2 connects the workbench 1 and the base 3, not only providing structural support but also enhancing the stability of the whole machine. The base 3 serves as the foundation of the machine, ensuring the firmness of the machine during operation. The support column 5 is located in the center of the base 3, and a displacement assembly 7 is installed at the top of the support column 5. The displacement assembly 7 is installed at the top of the support column 5 and can achieve precise positioning of the screw fastening tool in three-dimensional space. The feeding cylinder 9 is located at the left end of the top of the support column 5 and is used for storing and supplying materials. The limiting assembly 8 is installed at the front end of the top of the support column 5 and is used to limit the movement of materials to prevent the screw locking machine 713 from driving the materials to displace. The turntable 6 is located in the center of the top of the workbench 1 and is usually used to carry the materials to be processed. The rotation of the turntable 6 can achieve the movement of the workpiece. The discharging cylinder is installed at the center of the right side of the bottom of the workbench 1 and is used to collect the materials that have completed screw locking and unload them. The CCD vision positioning camera 707 is installed on the displacement assembly 7 and is used to capture the images of the workpiece and the screw hole. Through the image processing algorithm, it identifies the position and direction of the screw hole and guides the precise alignment of the screw locking tool, which is the key technology to achieve high-precision screw locking.

[0027] In the embodiment of the present utility model, the displacement assembly 7 includes: a top plate 701, a second motor 702, a threaded column 703, a first guide rod 704, and a moving plate 705. The threaded column 703 is installed at the center of the top of the support column 5. A first guide rod 704 is installed on each of the left and right sides of the threaded column 703. The top plate 701 is installed at the top of the threaded column 703, and the second motor 702 is installed at the top of the top plate 701. The output end of the second motor 702 is connected to the threaded column 703 to drive the moving plate 705 to move up and down. By driving the threaded column 703 to rotate through the second motor 702, a first threaded through hole that fits the threaded column 703 is provided on the moving plate 705, so that when the threaded column 703 rotates, under the limitation of the first guide rod 704, the moving plate 705 moves up or down.

[0028] In the embodiment of the present utility model, the displacement assembly 7 further includes: a second guide rod 708, a threaded rod 709, a moving block 710, and a third motor 711. A moving plate 705 is installed at the center of the threaded column 703. A displacement hole is formed at the center of the front end of the moving plate 705. The left side inside the displacement hole is installed with the threaded rod 709, and the right side inside the displacement hole is installed with the second guide rod 708. The third motor 711 is installed at the front end of the moving plate 705. The output end of the third motor 711 is connected to the threaded rod 709. The moving block 710 is installed at the center of the threaded rod 709, achieving the effect of driving the moving block 710 to move back and forth. By driving the screw column to rotate through the third motor 711, a second threaded through hole that fits the threaded rod 709 is formed in the moving block 710. When the threaded rod 709 rotates, under the limitation of the second guide rod 708, the moving block 710 moves forward or backward.

[0029] In the embodiment of the present utility model, the displacement assembly 7 further includes: a rotating disc 712, a screw locking machine 713, and a rotating shaft 714. The rotating shaft 714 is installed at the bottom end of the moving block 710, the rotating disc 712 is installed at the bottom end of the rotating shaft 714, and the screw locking machine 713 is installed at the bottom end of the rotating disc 712. The axis of the rotating shaft 714 and the axis of the rotating disc 712 are not on the same straight line, achieving the effect that the screw locking machine 713 can rotate around the axis of the rotating shaft 714. A small motor is installed inside the moving block 710, which can drive the rotating shaft 714 to rotate, thereby driving the turntable 6 to rotate, and then driving the screw locking machine 713 to rotate. Cooperating with other structures of the displacement assembly 7, the screw locking machine 713 can move freely according to requirements.

[0030] In the embodiment of the present utility model, a connecting block 706 is installed at the right end of the moving plate 705, and a CCD vision positioning camera 707 is installed at the bottom end of the connecting block 706, achieving the effect of realizing accurate positioning of the position that needs to be fixed with screws. The CCD vision positioning camera 707 is a prior art. The CCD vision positioning camera 707 can provide the accurate position of the place that needs to be fixed with screws for the device, so that the device can drive the screw locking machine 713 to perform accurate punching.

[0031] In the embodiment of the present utility model, the limiting component 8 includes a limiting frame 801, mounting holes 802, springs 803, connecting frames 804, limiting blocks 805 and limiting posts 806. The front end of the top of the support post 5 is provided with the limiting frame 801. Mounting holes 802 are opened at the four corners of the bottom end of the front end of the limiting frame 801. Springs 803 are installed in the mounting holes 802. The bottom ends of the springs 803 are connected to the limiting posts 806. Connecting frames 804 are installed at the outer bottom ends of the limiting posts 806. Limiting blocks 805 are installed at the center of the left side of the connecting frames 804. Through the limiting frame 801, the effect of providing an installation position and support for other limiting components 8 is achieved; through the mounting holes 802, the effect of providing an installation position for the springs 803 and the limiting posts 806 is achieved; through the springs 803, the effect of applying pressure to the limiting posts 806 so that the limiting posts 806 press down on the turntable 6 is achieved; through the connecting frames 804, the effect of connecting the limiting posts 806 is achieved, so that only when the material groove 602 moves to the specified position, the limiting posts 806 will press into the material groove 602 under the elastic force of the springs 803 to limit the material, and it will not happen that before the material groove 602 moves to the specified position, some of the limiting posts 806 enter the material groove 602 in advance, resulting in scratches on the material; through the limiting posts 806, the effect of limiting the material is achieved; through the limiting blocks 805, the effect of lifting the limiting posts 806 is achieved. After the screws are tightened, the turntable 6 rotates. The top end of the material groove 602 contacts the arc surface of the limiting block 805, causing the limiting block 805 to move upward, thereby driving the limiting frame 801 to move upward, and further driving the limiting posts 806 to move upward. Then continue to rotate the turntable 6. At this time, the material groove 602 will contact the arc surface at the bottom end of the limiting post 806. At this time, the limiting groove will directly push the limiting post 806 upward to complete the removal of the limiting device.

[0032] In the embodiment of the present utility model, the top end of the turntable 6 is a rotating disk 601. A number of material grooves 602 are equidistantly arranged around the center of the rotating disk 601. A discharge hole is opened at the right end of the workbench 1. A discharge chute 10 is installed at the bottom end of the discharge hole, achieving the effect of automatic loading and unloading. The material falls into the material groove 602 from the bottom end of the feeding cylinder 9 to complete feeding. Then the material moves to the bottom end of the screw locking machine 713 under the rotation of the rotating disk 601 to complete the tightening of the screws. Finally, it moves to the bottom end of the discharge port hole under the rotation of the rotating disk 601, and then falls into the discharge hole and is removed from the discharge chute 10 to complete unloading.

[0033] In the embodiment of the present utility model, a connecting shaft 605 is connected to the bottom end of the rotating disk 601, a connecting gear 604 is connected to the bottom end of the connecting shaft 605, a first motor 4 is installed at the top end of the base 3, a driving gear meshing with the connecting gear 604 is connected to the output end of the first motor 4, an installation through hole 603 is formed in the center of the rotating disk 601, and a support column 5 is installed in the installation through hole 603, achieving the effect of enabling the rotating disk 601 to rotate around the support column 5. Driven by the first motor 4, the driving gear drives the connecting gear 604 to rotate, thereby driving the rotating disk 601 to rotate through the connecting shaft 605.

[0034] Working principle: During use, first place the material into the feeding cylinder 9, and then the material falls from the bottom end of the feeding cylinder 9 into the material trough 602 to complete the feeding. Driven by the first motor 4, the driving gear drives the connecting gear 604 to rotate, thereby driving the rotating disk 601 to rotate through the connecting shaft 605. Then the material moves to the bottom end of the screw locking machine 713 under the rotation of the rotating disk 601. When the material trough 602 moves to the designated position, the limiting column 806 is pressed into the material trough 602 under the elastic force of the spring 803 to press the material tightly. The limiting frame 801 connects all the limiting columns 806, so that only when the material trough 602 moves to the designated position, the limiting column 806 will be pressed into the material trough 602 under the elastic force of the spring 803 to limit the material, and it will not happen that part of the limiting columns 806 enter the material trough 602 in advance before the material trough 602 moves to the designated position, resulting in scratching of the material; after tightening the screw, the turntable 6 rotates, the top end of the material trough 602 contacts the arc surface of the limiting block 805, causing the limiting block 805 to move upward, thereby driving the limiting frame 801 to move upward, and further driving the limiting column 806 to move upward. Then continue to rotate the turntable 6. At this time, the material trough 602 will contact the arc surface at the bottom end of the limiting column 806. At this time, the limiting groove will directly push the limiting column 806 to move upward to complete the removal of the limiting device. The threaded column 703 is driven to rotate by the second motor 702. A first threaded through hole matching the threaded column 703 is formed in the moving plate 705, so that when the threaded column 703 rotates, under the limitation of the first guide rod 704, the moving plate 705 moves upward or downward. Then the screw rod column is driven to rotate by the third motor 711. A second threaded through hole matching the threaded rod 709 is formed in the moving block 710, so that when the threaded rod 709 rotates, under the limitation of the second guide rod 708, the moving block 710 moves forward or backward. A small motor is installed inside the moving block 710, which can drive the rotating shaft 714 to rotate, thereby driving the turntable 6 to rotate, and then driving the screw locking machine 713 to rotate. Cooperating with other structures of the displacement assembly 7, the screw locking machine 713 can move freely according to requirements, so as to complete the tightening of the screw. Finally, when the rotating disk 601 rotates and moves to the bottom end of the discharge hole, then it falls into the discharge hole, and the material is removed from the discharge trough 10 to complete the discharging.

Claims

1. A high-precision CCD visual screw locking machine, comprising: A workbench (1), characterized in that: the four corners of the bottom end of the workbench (1) are connected to side columns (2), the bottom end of the side columns (2) is connected to a base (3), a support column (5) is installed in the center of the base (3), a displacement assembly (7) is installed at the top of the support column (5), a feed cylinder (9) is installed at the left end of the top of the support column (5), a limit assembly (8) is installed at the front end of the top of the support column (5), a turntable (6) is installed in the center of the top of the workbench (1), a discharge cylinder is installed in the center of the right side of the bottom end of the workbench (1), and a CCD visual positioning camera (707) is installed on the displacement assembly (7).

2. According to claim 1, a high-precision CCD visual screw locking machine is characterized in that: The displacement assembly (7) comprises: a top plate (701), a second motor (702), a threaded column (703), a first guide rod (704) and a moving plate (705); a threaded column (703) is installed at the center of the top of the support column (5); the first guide rods (704) are installed on the left and right sides of the threaded column (703); a top plate (701) is installed at the top of the threaded column (703); a second motor (702) is installed at the top of the top plate (701); and the output end of the second motor (702) is connected to the threaded column (703).

3. According to claim 2, a high-precision CCD visual screw locking machine is characterized in that: The displacement assembly (7) further comprises: a second guide rod (708), a threaded rod (709), a moving block (710) and a third motor (711); a moving plate (705) is mounted in the center of the threaded column (703); a displacement hole is provided in the center of the front end of the moving plate (705); a threaded rod (709) is mounted on the left side of the displacement hole; a second guide rod (708) is mounted on the right side of the displacement hole; a third motor (711) is mounted at the front end of the moving plate (705); an output end of the third motor (711) is connected to the threaded rod (709); and a moving block (710) is mounted in the center of the threaded rod (709).

4. According to claim 3, a high-precision CCD visual screw locking machine is characterized in that: The displacement assembly (7) further comprises: a rotating disc (712), a screw locking machine (713) and a rotating shaft (714); the bottom end of the moving block (710) is provided with a rotating shaft (714); the bottom end of the rotating shaft (714) is provided with a rotating disc (712); the bottom end of the rotating disc (712) is provided with a screw locking machine (713); and the axes of the rotating shaft (714) and the rotating disc (712) are not on the same straight line.

5. According to claim 4, a high-precision CCD visual screw locking machine is characterized in that: A connecting block (706) is installed at the right end of the movable plate (705), and a CCD visual positioning camera (707) is installed at the bottom end of the connecting block (706).

6. The high-precision CCD visual screw locking machine according to claim 1, characterized in that: The limiting assembly (8) comprises: a limiting frame (801), a mounting hole (802), a spring (803), a connecting frame (804), a limiting block (805) and a limiting column (806); the limiting frame (801) is installed at the front end of the top of the support column (5); the four corners of the bottom end of the front end of the limiting frame (801) are provided with mounting holes (802); the spring (803) is installed in the mounting hole (802); the bottom end of the spring (803) is connected to the limiting column (806); the connecting frame (804) is installed at the bottom end outside the limiting column (806); and the limiting block (805) is installed at the center of the left side of the connecting frame (804).

7. The high-precision CCD visual screw locking machine according to claim 1, characterized in that: The top of the turntable (6) is a rotating disk (601), and a plurality of material troughs (602) are provided on the rotating disk (601) at equal intervals around the center of the circle. A discharge hole is provided at the right end of the workbench (1), and a discharge trough (10) is installed at the bottom of the discharge hole.

8. The high-precision CCD visual screw locking machine according to claim 7, characterized in that: The bottom end of the rotating disk (601) is connected to a connecting shaft (605), the bottom end of the connecting shaft (605) is connected to a connecting gear (604), a first motor (4) is installed at the top end of the base (3), an output end of the first motor (4) is connected to a driving gear meshing with the connecting gear (604), a mounting through hole (603) is opened in the center of the rotating disk (601), and a support column (5) is installed in the mounting through hole (603).

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