In-line automatic screwing machine

Abstract

The utility model discloses an online automatic screw locking machine belongs to the technical field of automation equipment, and it includes work plane, intelligent electric screwdriver and product positioning system, including Y axis positioning mechanism, it is by Y axis positioning cylinder one drive Y axis positioning long piece, Y axis positioning cylinder two drive Y axis positioning block constitutes, and the product is clamped in cooperation, X axis positioning mechanism, and it is by X axis positioning cylinder drive X axis positioning block and is positioned, still includes pressing material mechanism, and pressing material lifting motor passes through the belt drive pressing material lifting plate lifting, and pressing material stretches out cylinder drive pressing material rod and stretches out and presses the product tightly. The utility model discloses through the cooperative work of X-Y axis self -adaptation positioning mechanism and Z axis pressing material mechanism, and the vision system is matched, has solved the problem that equipment compatibility is poor, and the problem that the replacement adjustment is complicated, can carry out the full -automatic screw locking of quick, accurate to different length width height's product on line, and production efficiency and automation level are high.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to an online automatic screw fastening machine. Background Technology

[0002] In modern industrial production, especially in the fields of consumer electronics, auto parts, and home appliance manufacturing, automatic screw fastening machines have been widely used as key equipment to improve assembly efficiency and ensure connection quality. They replace traditional manual screw fastening operations with automation, greatly improving production cycle time and assembly consistency.

[0003] Currently, most mainstream automatic screw fastening machines on the market typically use fixtures or positioning modules customized for specific products. Before the fastening operation, the product is placed in these specialized fixtures and fixed by mechanical structure. For mass production of a single product type, this method can complete the task stably and efficiently.

[0004] However, with the increasing diversification of market demands and the accelerated pace of product updates, flexible production models with multiple varieties and small batches have become a trend. Under this model, the production line needs to frequently switch between processing products of different sizes and specifications. The drawbacks of traditional automatic screw fastening machines that rely on fixed fixtures become apparent. Every time a product is changed, the production line must be stopped, and technicians must spend a lot of time manually adjusting, calibrating, or even replacing the entire fixture system. This not only seriously affects production efficiency but also increases the risk of product defects due to human error in adjustment.

[0005] Current positioning systems generally lack sufficient adaptability, making it difficult to automatically adapt to products of different lengths, widths, and heights flowing on the production line without human intervention. This fails to meet the requirements of modern flexible manufacturing for high efficiency and high flexibility.

[0006] Therefore, this utility model proposes an online automatic screw fastening machine to overcome the shortcomings of the prior art. Summary of the Invention

[0007] In view of the problems existing in the field of online automatic screw fastening machines, such as the need for manual adjustment of positioning fixtures when dealing with products of different length, width and height, resulting in low automation, low production efficiency and difficulty in adapting to the needs of flexible production lines, this utility model aims to provide an online automatic screw fastening machine with an improved structure that can effectively solve the above problems.

[0008] This utility model provides an online automatic screw fastening machine, including: a working plane, an intelligent electric screwdriver disposed above the working plane, and a product positioning system installed on the working plane.

[0009] The product positioning system includes a Y-axis positioning mechanism and an X-axis positioning mechanism. The Y-axis positioning mechanism includes a Y-axis positioning cylinder, a Y-axis positioning block, a Y-axis positioning cylinder, a Y-axis connecting block, a Y-axis slider, and a Y-axis positioning block. The X-axis positioning mechanism includes an X-axis positioning cylinder, an X-axis connecting block, and an X-axis positioning block.

[0010] Furthermore, the first Y-axis positioning cylinder is fixedly connected to the long Y-axis positioning block, and the second Y-axis positioning cylinder is fixedly connected to the Y-axis connecting block. The Y-axis connecting block is slidably connected to the Y-axis slide rail on the working plane via the Y-axis slider and is fixedly connected to the Y-axis positioning block. The long Y-axis positioning block and the Y-axis positioning block cooperate to clamp the product from opposite sides. The X-axis positioning cylinder is fixedly connected to the X-axis connecting block, and the X-axis connecting block is slidably connected to the X-axis slide rail on the working plane and is fixedly connected to the X-axis positioning block, thereby achieving positioning of the product in another direction.

[0011] Preferably, the online automatic screw fastening machine further includes a pressing mechanism, which includes a pressing lifting motor, a belt, a pressing lifting plate, a pressing extension cylinder, and a pressing rod. The pressing lifting motor is connected to the pressing lifting plate via the belt to drive the pressing lifting plate to move up and down in a direction perpendicular to the working plane. The pressing extension cylinder is mounted on the pressing lifting plate and drives the pressing rod to extend or retract in a direction parallel to the working plane to achieve a stable pressing of the product.

[0012] Preferably, the online automatic screw fastening machine further includes a vision camera and a light source, both of which are fixed to the intelligent electric screwdriver. This structure not only provides supplementary lighting through the light source and uses the vision camera to photograph and locate the screw holes to be fastened on the product, but also scans the QR code on the product to identify the product model and call the corresponding fastening program, thus achieving intelligent production.

[0013] Preferably, the online automatic screw fastening machine further includes a production line for conveying products. The production line is equipped with a stop mechanism, which consists of a stop cylinder and a stop block. The stop cylinder is fixed to the side of the production line and drives the stop block to rise or fall, precisely blocking or releasing the product-carrying tray. An infrared sensor is also integrated into the stop block to accurately detect whether the tray has reached the predetermined fastening position.

[0014] Preferably, the online automatic screw fastening machine further includes a screw feeder, which is located on one side of the working plane and within the movement range of the intelligent electric screwdriver, thereby enabling convenient automatic screw supply to the intelligent electric screwdriver and ensuring the continuity of the fastening process.

[0015] Preferably, the online automatic screw fastening machine further includes a height adjustment mechanism for adjusting the height of the working plane. The height adjustment mechanism consists of a hand crank, a worm gear, a worm, a lead screw, and a platform guide column. By rotating the hand crank, the lead screw is driven to rotate through the meshing transmission between the worm and the worm gear, thereby driving the working plane, which is fixedly connected to the platform guide column, to achieve overall lifting and lowering to accommodate products of different heights.

[0016] This utility model has the following beneficial effects: 1. This utility model, by setting up a Y-axis positioning long block, a Y-axis positioning block, and an X-axis positioning block driven by a Y-axis positioning cylinder one, a Y-axis positioning cylinder two, and an X-axis positioning cylinder respectively, achieves adaptive clamping of the width and length of the product in the X and Y axes. It solves the problem that existing automatic screw fastening machines require manual intervention to adjust the clamps when dealing with products of different length and width dimensions, resulting in low positioning efficiency and poor compatibility. It achieves the technical effect of quickly and automatically performing precise positioning and limiting of the product in the X and Y axes.

[0017] This invention, by setting up a pressing rod driven by a pressing lifting motor for lifting and a pressing extension cylinder for extension and retraction, and cooperating with a worm gear and screw mechanism driven by a hand crank, achieves vertical pressing of the product and adaptive adjustment of the overall machine height. It solves the problems of product displacement due to insecure fixing during the locking process and the difficulty of adapting the equipment to products of different heights. It achieves the technical effect of stable pressing of products and flexible adaptation to products of different heights, thus enhancing the versatility of the equipment.

[0018] This invention, by setting up a vision camera and light source and linking them with an intelligent electric screwdriver, achieves real-time identification of product models and capture of screw hole coordinates. It solves the problems of traditional equipment relying on preset programs or mechanical blocks to locate screw holes, which has low accuracy and cannot cope with individual product differences or abnormal incoming materials. It achieves the technical effects of automatically identifying product models, accurately locating screw hole coordinates, and detecting foreign objects, significantly improving the intelligence level and accuracy of fastening. Attached Figure Description

[0019] Figure 1 This is a front perspective view of the online automatic screw fastening machine proposed in this utility model; Figure 2 This is a partial structural diagram of the pressing and lifting plate of the online automatic screw fastening machine proposed in this utility model; Figure 3 This is a partial structural diagram of the screw feeder of the online automatic screw fastening machine proposed in this utility model; Figure 4This is a partial structural diagram of the X-axis positioning block of the online automatic screw fastening machine proposed in this utility model; Figure 5 This is a partial structural diagram of the production line of the online automatic screw fastening machine proposed in this utility model; Figure 6 This is a partial structural diagram of the hand crank of the online automatic screw fastening machine proposed in this utility model.

[0020] Legend: 1. Production line; 2. Stop cylinder; 3. Stop block; 4. Hand crank; 5. Worm gear; 6. Worm; 7. Lead screw; 8. Platform guide column; 9. Screw feeder; 10. Electric screwdriver; 11. Working plane; 12. Y-axis positioning cylinder one; 13. Vision camera; 14. Light source; 15. Material lifting motor; 16. Belt; 17. Material lifting plate; 18. Material extension cylinder; 19. Material pressing rod; 20. Y-axis positioning cylinder two; 21. Y-axis connecting block; 22. X-axis positioning cylinder; 23. Y-axis slider; 24. X-axis connecting block; 25. Y-axis positioning block; 26. X-axis positioning block; 27. Y-axis positioning long block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 6 This utility model provides an online automatic screw fastening machine, which aims to solve the problem that in the prior art, automatic screw fastening machines require manual adjustment of positioning fixtures when dealing with products of different length, width and height, resulting in low automation and low production efficiency.

[0023] like Figure 1 , Figure 4 and Figure 5 As shown, the online automatic screw fastening machine includes a working plane 11 and an intelligent electric screwdriver 10 set above the working plane 11. The working plane 11 is used to hold the product to be fastened with screws, and the intelligent electric screwdriver 10 is used to perform the screw fastening action. In order to achieve automatic positioning of products of different sizes, a product positioning system is also installed on the working plane 11. The product positioning system specifically includes a Y-axis positioning mechanism and an X-axis positioning mechanism. Please refer to Figure 4The Y-axis positioning mechanism includes a Y-axis positioning cylinder 12, a Y-axis positioning block 27, a Y-axis positioning cylinder 20, a Y-axis connecting block 21, a Y-axis slider 23, and a Y-axis positioning block 25. The driving end of the Y-axis positioning cylinder 12 is fixedly connected to the Y-axis positioning block 27 and is used to drive the Y-axis positioning block 27 to reciprocate along the Y-axis direction. The driving end of the Y-axis positioning cylinder 20 is fixedly connected to the Y-axis connecting block 21. The Y-axis connecting block 21 is slidably connected to the Y-axis slide rail set on the working plane 11 through the Y-axis slider 23. The Y-axis connecting block 21 is also fixedly connected to the Y-axis positioning block 25. Thus, the Y-axis positioning cylinder 20 drives the Y-axis connecting block 21 to move the Y-axis positioning block 25. When positioning the product, the Y-axis positioning block 27 and the Y-axis positioning block 25 push and clamp from two opposite sides of the product to jointly complete the coordinated positioning and limiting of the product in the Y-axis direction. The X-axis positioning mechanism includes an X-axis positioning cylinder 22, an X-axis connecting block 24, and an X-axis positioning block 26. The drive end of the X-axis positioning cylinder 22 is fixedly connected to the X-axis connecting block 24. The X-axis connecting block 24 is slidably connected to the X-axis slide rail on the working plane 11. The X-axis connecting block 24 is also fixedly connected to the X-axis positioning block 26. The X-axis positioning cylinder 22 drives the X-axis connecting block 24 to move the X-axis positioning block 26. The X-axis positioning block 26 is used to position and limit the product in the X-axis direction.

[0024] Based on the above embodiments, the present invention may further include the following preferred technical solutions: Please refer to Figure 2 In order to securely clamp the product after positioning, the online automatic screw fastening machine also includes a clamping mechanism. The clamping mechanism includes a clamping lifting motor 15, a belt 16, a clamping lifting plate 17, a clamping extension cylinder 18, and a clamping rod 19. The clamping lifting motor 15 is connected to the clamping lifting plate 17 through the belt 16 to drive the clamping lifting plate 17 to rise and fall in a direction perpendicular to the working plane 11. The clamping extension cylinder 18 is installed on the clamping lifting plate 17 and drives the clamping rod 19 to extend or retract in a direction parallel to the working plane 11, thereby realizing the clamping or release of the product. Please refer to Figure 3 In order to achieve accurate identification and positioning of screw holes, the device also includes a vision camera 13 and a light source 14. Both the vision camera 13 and the light source 14 are fixed on the intelligent electric screwdriver 10. The vision camera 13 is used to take pictures and locate the screw holes to be locked on the product, and transmit the coordinate information to the control system of the intelligent electric screwdriver 10. In addition, the vision camera 13 is also used to scan the QR code on the product to identify the product model and call the corresponding locking program. Please refer to Figure 5In order to achieve automated product conveying and stopping, the equipment also includes a production line 1. The production line 1 is equipped with a stop mechanism, which includes a stop cylinder 2 and a stop block 3. The stop cylinder 2 is fixed to the side of the production line 1 and drives the stop block 3 to rise or fall to block or release the pallet carrying the product. The stop block 3 also integrates an infrared sensor, which is used to detect whether the pallet has reached the predetermined locking position and feeds the signal back to the control system of the whole machine. Please refer to Figure 3 The equipment also includes a screw feeder 9, which is located on one side of the working plane 11 and within the movement range of the intelligent electric screwdriver 10, and is used to automatically supply screws to the intelligent electric screwdriver 10. Please refer to Figure 6 To accommodate products of different heights, the equipment also includes a height adjustment mechanism for adjusting the height of the working plane 11. The height adjustment mechanism includes a hand crank 4, a worm gear 5, a worm 6, a lead screw 7, and a platform guide post 8. The working plane 11 is fixedly connected to the upper end of the platform guide post 8. The shaft of the hand crank 4 is fixedly connected to the worm 6. The worm 6 meshes with the worm gear 5. The worm gear 5 is coaxially fixedly connected to the lead screw 7. The lead screw 7 is threaded into the threaded hole of the equipment frame. At the same time, the platform guide post 8 is slidably engaged in the guide hole of the equipment frame.

[0025] Working principle: The pressing and lifting motor 15 drives the belt 16 to rotate, thereby raising and lowering the pressing and lifting plate 17, which in turn drives the pressing rod 19 to press the product. The pressing extension cylinder 18 drives the pressing rod 19 to extend and retract. At the same time, the hand crank 4 drives the worm gear 5 and worm 6, thereby driving the lead screw 7 and platform guide column 8 to rise and fall. After the height is adjusted, the platform is locked with screws. Then, the product processed by the previous machine is placed on the pallet and flows along the production line 1 to this machine. When the pallet reaches the stop block 3, the stop cylinder 2 drives the stop block 3 to clamp the pallet. The stop block 3 is equipped with... With an infrared sensor, once the pallet is in place, the vision camera 13 on the working plane 11 scans the QR code on the product to confirm the product. Then, the intelligent electric screwdriver 10 moves to the screw feeding mechanism to feed the screws. The light source 14 on the vision camera 13 then takes a picture of the product, locates the coordinates of the holes to be screwed, and checks for any foreign objects in the product. Once everything is in order, the product is pressed down, and the intelligent electric screwdriver 10 drives the screws from the screw feeder 9 into the various screw holes that need to be drilled. This enables the screwing of shells with different lengths, widths, and heights to be adapted for screwing. Y-axis positioning cylinder 12 drives Y-axis positioning block 27 to push one side of the product; Y-axis positioning cylinder 20 drives Y-axis connecting block 21 to move along Y-axis slide rail, thereby moving Y-axis positioning block 25, while Y-axis slider 23 slides, pushing the other side of the product; the two work together to complete the Y-axis positioning and limiting. X-axis positioning cylinder 22 drives X-axis connecting block 24 to move along X-axis slide rail, thereby moving X-axis positioning block 26, completing the X-axis positioning and limiting, thus enabling rapid positioning and limiting of the product.

Claims

1. An online automatic screw fastening machine, comprising: The working plane (11) and the intelligent electric screwdriver (10) disposed above the working plane (11). The online automatic screw fastening machine is characterized by further including a product positioning system, which is installed on the working plane (11) and includes: a Y-axis positioning mechanism, which includes a Y-axis positioning cylinder one (12), a Y-axis positioning long block (27), a Y-axis positioning cylinder two (20), a Y-axis connecting block (21), a Y-axis slider (23), and a Y-axis positioning block (25). The Y-axis positioning cylinder one (12) drives the Y-axis positioning long block (27) to move along the Y-axis direction, and the Y-axis positioning cylinder two (20) drives the Y-axis connecting block (21). The Y-axis connecting block (21) is slidably connected to the Y-axis slide rail on the working plane (11) through the Y-axis slider (23) and drives the Y-axis positioning block (25) to move. The Y-axis positioning long block (27) and the Y-axis positioning block (25) are used to coordinately position and limit the Y-axis direction of the product. The X-axis positioning mechanism includes an X-axis positioning cylinder (22), an X-axis connecting block (24), and an X-axis positioning block (26). The X-axis positioning cylinder (22) drives the X-axis connecting block (24), which is slidably connected to the X-axis slide rail on the working plane (11) and drives the X-axis positioning block (26) to move. The X-axis positioning block (26) is used to position and limit the product in the X-axis direction.

2. The online automatic screw fastening machine according to claim 1, characterized in that, The online automatic screw fastening machine also includes a pressing mechanism, which includes a pressing lifting motor (15), a belt (16), a pressing lifting plate (17), a pressing extension cylinder (18), and a pressing rod (19). The pressing lifting motor (15) is connected to the pressing lifting plate (17) via the belt (16) to drive the pressing lifting plate (17) to lift. The pressing extension cylinder (18) is installed on the pressing lifting plate (17) and drives the pressing rod (19) to extend or retract to press or release the product.

3. The online automatic screw fastening machine according to claim 1, characterized in that, It also includes a vision camera (13) and a light source (14). The vision camera (13) and the light source (14) are both fixed on the intelligent electric screwdriver (10). The vision camera (13) is used to take pictures and locate the screw holes to be locked on the product, and transmit the coordinate information to the control system of the intelligent electric screwdriver (10).

4. The online automatic screw fastening machine according to claim 1, characterized in that, It also includes a production line (1) for conveying products, the production line (1) is provided with a stop mechanism, the stop mechanism includes a stop cylinder (2) and a stop block (3), the stop cylinder (2) is fixed to the side of the production line (1) and drives the stop block (3) to rise or fall to block or release the pallet carrying the product.

5. The online automatic screw fastening machine according to claim 1, characterized in that, It also includes a screw feeder (9), which is located on one side of the working plane (11) and within the movement range of the intelligent electric screwdriver (10), for automatically supplying screws to the intelligent electric screwdriver (10).

6. The online automatic screw fastening machine according to any one of claims 1 to 5, characterized in that, It also includes a height adjustment mechanism for adjusting the height of the working plane (11), the height adjustment mechanism including a hand crank (4), a worm gear (5), a worm (6), a lead screw (7) and a platform guide column (8), the working plane (11) being fixedly connected to the upper end of the platform guide column (8).

7. The online automatic screw fastening machine according to claim 6, characterized in that, The shaft of the hand crank (4) is fixedly connected to the worm (6), the worm (6) meshes with the worm wheel (5), the worm wheel (5) is coaxially fixedly connected to the lead screw (7), the lead screw (7) is threaded into the threaded hole of the equipment frame, and the platform guide post (8) is slidably fitted into the guide hole of the equipment frame.

8. The online automatic screw fastening machine according to claim 4, characterized in that, An infrared sensor is integrated at the stop block (3). The infrared sensor is used to detect whether the pallet has reached the predetermined locking position and to feed the signal back to the control system of the whole machine.

9. The online automatic screw fastening machine according to claim 2, characterized in that, The movement direction of the pressing lifting plate (17) is perpendicular to the working plane (11), and the extension and retraction direction of the pressing rod (19) is parallel to the working plane (11).

10. The online automatic screw fastening machine according to claim 3, characterized in that, The visual camera (13) is also used to scan the QR code on the product to identify the product model and call the corresponding lock.

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