Semi-automatic screw locking equipment

Abstract

The invention relates to the technical field of screw locking of vehicle-mounted cameras, in particular to semi-automatic screw locking equipment which comprises a machine shell, feeding mechanisms are arranged at the left end and the right end of the interior of the machine shell, and a code scanning mechanism is installed on the surface of the machine shell and located on one side of the feeding mechanisms. A torsion testing mechanism used for detecting torsion is arranged on one side of the code scanning mechanism, two sets of screw feeding mechanisms are arranged in the center of the surface of the machine shell, and a mechanical arm locking mechanism is arranged above the feeding mechanisms. Through the arrangement, automatic feeding and automatic locking are achieved, the problem that manual locking is needed in the prior art is solved, and the locking quality is guaranteed; double-Y-axis ping-pong type operation is achieved, meanwhile, manual feeding and discharging, one-station manual feeding, one-station automatic locking and applying and two-station alternate operation are adopted, and the working efficiency is improved; by arranging the double height detection assemblies and cooperating with the torsion tester, it is ensured that screws can be locked in place, and the screw locking yield is increased.

Description

Technical Field

[0001] This invention relates to the field of screw fastening technology for vehicle cameras, specifically a semi-automatic screw fastening device. Background Technology

[0002] An automotive camera is an optical imaging electronic device specifically designed and installed on a car to collect visual information about the vehicle's surroundings or interior. It acts as the "eyes" of the vehicle's perception system, converting light signals into electrical signals to provide image and video data to the driver or in-vehicle intelligent systems. It is one of the core sensors for achieving active safety, driver assistance, autonomous driving, and smart cockpit functions. Automotive cameras require screw fastening during assembly.

[0003] Currently, the screw fastening of existing vehicle cameras is done manually, which has a low degree of automation and the quality of manual fastening cannot be guaranteed. Moreover, the existing technology fastens vehicle cameras one by one, which is inefficient and has insufficient production capacity. At the same time, when fastening vehicle cameras manually, it is impossible to detect whether there is any floating or to test the torque, which will reduce the yield rate of vehicle cameras during screw fastening. Summary of the Invention

[0004] The purpose of this invention is to provide a semi-automatic screw fastening device to solve the problems mentioned in the background art, which are that the existing technologies are all manual fastening, the quality cannot be guaranteed, the efficiency is low, and the problem of not being able to detect whether there is floating, resulting in a poor yield.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a semi-automatic screw fastening device, comprising a housing, a touch screen mounted on the surface of the housing for controlling the entire device; feeding mechanisms located at the left and right ends inside the housing for feeding products; a barcode scanning mechanism mounted on the surface of the housing and on one side of the feeding mechanism, a torque testing mechanism for detecting torque located on one side of the barcode scanning mechanism; two sets of screw feeding mechanisms located at the center of the surface of the housing; and a robotic arm fastening mechanism located above the feeding mechanism for picking up screws from the screw feeding mechanisms and fastening them onto the products in the feeding mechanism. The robotic screw-locking mechanism includes a dual-height screw-locking assembly, which is used for screw-locking and dual-height detection of screws. The dual-height screw-locking assembly consists of a carrier, a lifting cylinder, an electric screwdriver, a CCD camera, a suction nozzle sleeve, and the dual-height component. The lifting cylinder is mounted on the surface of the carrier, and an electric screwdriver with a bit is slidably connected to the surface of the carrier. The slide of the electric screwdriver is fixedly connected to the output end of the lifting cylinder. The electric screwdriver is used to lock the screw onto the product. A suction nozzle sleeve for adsorbing screws is installed at the bottom of the carrier. The dual-height component is arranged between the carrier, the electric screwdriver, and the suction nozzle sleeve. The dual-height component is used for dual-height detection of screws after locking.

[0006] Preferably, the feeding mechanism includes a Y-axis linear module and a product fixture. The Y-axis linear module is fixed to the surface of the housing, and the product fixture is provided on the sliding seat of the Y-axis linear module.

[0007] Preferably, the product fixture includes a fixture body, a cylinder clamping plate, and a positioning block. The fixture body is fixedly connected to the sliding seat of the Y-axis linear module, and the positioning block for limiting the position is installed on the surface of the fixture body.

[0008] Preferably, cylinder clamps are fixed on both sides of the main surface of the fixture, and the cylinder clamps, together with the positioning blocks, are used for positioning and clamping the vehicle camera product.

[0009] Preferably, the scanning mechanism includes a bracket and a scanning CCD. The bracket is fixed to the surface of the housing, and the scanning CCD is mounted on the surface of the bracket. The scanning CCD is used for scanning the product.

[0010] Preferably, the torque testing mechanism includes a support frame and a torque tester. The support frame is fixed to the surface of the housing, and the torque tester is mounted on the surface of the support frame. The torque tester is used for torque testing of the product after it has been locked.

[0011] Preferably, the robotic arm locking mechanism further includes an X-axis linear module and a Z-axis linear module. The X-axis linear module is fixed to the surface of the housing, and the Z-axis linear module is mounted on the sliding seat of the X-axis linear module. The carrier is mounted on the sliding seat of the Z-axis linear module.

[0012] Preferably, the screw feeding mechanism includes a fixed frame, a feeder, a limit block, and an adjusting screw. The fixed frame is fixed to the surface of the machine housing, and the feeder is placed on the surface of the fixed frame.

[0013] Preferably, the surface of the fixing frame is equipped with multiple sets of limiting blocks, which are used to limit the position of the feeder after it is placed. One side of the fixing frame is threadedly connected to an adjusting screw through a connecting plate, which is used to lock and fix the feeder.

[0014] Preferably, a CCD camera is also fixed on the surface of the carrier. The CCD camera is used for visual positioning during product screw installation. The dual height probe assembly includes two upper and lower distance sensors mounted on the surface of the carrier. An upper sensing plate is mounted on the surface of the electric screwdriver and directly below the upper distance sensor. A lower sensing plate is mounted on the surface of the suction nozzle sleeve and directly below the lower distance sensor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The semi-automatic screw fastening equipment is equipped with a feeding mechanism, a barcode scanning mechanism, a torque testing mechanism, a screw feeding mechanism, and a robotic arm fastening mechanism. In practice, a person manually feeds screws into the screw feeding mechanism, then a person manually places a vehicle-mounted camera on the feeding mechanism. The screws are fed to the barcode scanning mechanism for scanning. After scanning, the screws continue to the torque testing mechanism, where the robotic arm fastening mechanism fastens the screws onto the vehicle-mounted camera. After fastening, the torque testing mechanism performs the test, and after the test, the feeding mechanism drives the product back to its original position. After returning to its original position, the screws are manually unloaded. This invention achieves automatic feeding and screw fastening by setting up a feeding mechanism, a screw feeding mechanism, and a robotic arm fastening mechanism, solving the problem of manual fastening required in existing technologies and ensuring fastening quality. By setting up two sets of Y-axis linear modules, two sets of product fixtures, two sets of barcode scanning CCDs, two sets of feeders, and one set of dual-height-probe screw fastening components, this invention achieves dual Y-axis ping-pong operation, while simultaneously employing manual loading and unloading, with one station manually loading and another automatically fastening, allowing the two stations to operate alternately, thus improving work efficiency. Furthermore, by setting up a dual-height-probe component in conjunction with a torque tester, this invention achieves floating height detection and torque testing during screw fastening, thereby ensuring that the screws are fastened in place and improving the yield rate of screw fastening. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional internal structure diagram of the present invention; Figure 3 This is a top-view enlarged structural schematic diagram of the present invention; Figure 4 This is an enlarged structural schematic diagram of the feeding mechanism of the present invention; Figure 5 This is an enlarged structural schematic diagram of the screw feeding mechanism of the present invention; Figure 6 This is an enlarged structural schematic diagram of the robotic arm locking mechanism of the present invention; Figure 7 This is an enlarged structural schematic diagram of the dual-probe screw locking assembly of the present invention; Figure 8This is an exploded structural diagram of the dual-probe screw locking assembly of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the suction nozzle sleeve of the present invention.

[0017] In the diagram: 1. Housing; 11. Touch screen; 2. Feeding mechanism; 21. Y-axis linear module; 22. Product fixture; 221. Fixture body; 222. Cylinder clamp; 223. Positioning block; 3. Scanning mechanism; 31. Bracket; 32. Scanning CCD; 4. Torque testing mechanism; 41. Support frame; 42. Torque tester; 5. Screw feeding mechanism; 51. Fixing frame; 52. Feeder; 53. Limit block; 54. Adjusting screw; 6. Robotic arm locking mechanism; 61. X-axis linear module; 62. Z-axis linear module; 63. Double-height screw locking assembly; 631. Carrier; 632. Lifting cylinder; 633. Electric screwdriver; 634. CCD camera; 635. Suction nozzle sleeve; 636. Double-height assembly. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. In addition, the terms "first," "second," "third," "upper," "lower," "left," "right," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The structure of a semi-automatic screw-locking device provided by this invention is as follows: Figure 1 , Figure 3 as well as Figure 4As shown, the device includes a housing 1, on the surface of which a touch screen 11 is mounted for controlling the entire device. Feeding mechanisms 2 are located at the left and right ends inside the housing 1 for loading products. The feeding mechanism 2 includes a Y-axis linear module 21 and a product fixture 22. The Y-axis linear module 21 is fixed to the surface of the housing 1, and the product fixture 22 is mounted on the sliding seat of the Y-axis linear module 21. The product fixture 22 includes a fixture body 221, a cylinder clamping plate 222, and a positioning block 223. The fixture body 221 is fixed to the sliding seat of the Y-axis linear module 21. The surface of the fixture body 221 is fitted with a positioning block 223 for limiting positioning. Cylinder clamping plates 222 are fixed to both sides of the surface of the fixture body 221. These cylinder clamping plates 222, in conjunction with the positioning blocks 223, are used for positioning and clamping the vehicle-mounted camera product.

[0020] During implementation, the vehicle-mounted camera is manually placed on the surface of the fixture body 221. During placement, it is positioned by the positioning block 223. Then, the vehicle-mounted camera is fixed by the cylinder clamp 222. After the fixation is completed, the device is controlled by operating the touch screen 11. The Y-axis linear module 21 will drive the vehicle-mounted camera on the surface of the fixture body 221 to the barcode scanning mechanism 3.

[0021] Furthermore, such as Figure 2 as well as Figure 3 As shown, a barcode scanning mechanism 3 is installed on the surface of the housing 1 and on one side of the feeding mechanism 2. The barcode scanning mechanism 3 includes a bracket 31 and a barcode scanning CCD 32. The bracket 31 is fixed to the surface of the housing 1, and the barcode scanning CCD 32 is installed on the surface of the bracket 31. The barcode scanning CCD 32 is used for barcode scanning of the product. A torque testing mechanism 4 for detecting torque is provided on one side of the barcode scanning mechanism 3. The torque testing mechanism 4 includes a support frame 41 and a torque tester 42. The support frame 41 is fixed to the surface of the housing 1, and the torque tester 42 is installed on the surface of the support frame 41. The torque tester 42 is used for torque testing of the product after it is locked.

[0022] During implementation, the vehicle-mounted camera is scanned by the CCD 32 on the surface of the bracket 31. After scanning, the Y-axis linear module 21 continues to move the vehicle-mounted camera to the torque testing mechanism 4.

[0023] Furthermore, such as Figure 3 as well as Figure 5As shown, two sets of screw feeding mechanisms 5 are provided at the center of the surface of the housing 1. The screw feeding mechanism 5 includes a fixed frame 51, a feeder 52, a limiting block 53 and an adjusting screw 54. The fixed frame 51 is fixed to the surface of the housing 1. The feeder 52 is placed on the surface of the fixed frame 51. Multiple sets of limiting blocks 53 are installed on the surface of the fixed frame 51. The limiting blocks 53 are used to limit the position of the feeder 52 after it is placed. An adjusting screw 54 is threadedly connected to one side of the fixed frame 51 through a connecting plate. The adjusting screw 54 is used to lock and fix the feeder 52.

[0024] During implementation, the feeder 52, which is filled with screws, is placed on the surface of the fixed frame 51 by hand. The feeder 52 is then fixed by rotating the adjusting screw 54.

[0025] Furthermore, such as Figure 3 , Figure 6 as well as Figure 7 As shown, a robotic arm locking mechanism 6 is provided above the feeding mechanism 2. The robotic arm locking mechanism 6 is used to pick up the screws from the screw feeding mechanism 5 and lock them onto the product in the feeding mechanism 2. The robotic arm locking mechanism 6 includes an X-axis linear module 61 and a Z-axis linear module 62. The X-axis linear module 61 is fixed to the surface of the housing 1, and the Z-axis linear module 62 is installed on the sliding seat of the X-axis linear module 61. The robotic arm locking mechanism 6 also includes a double-height screw locking assembly 63. The double-height screw locking assembly 63 is used for screw locking and screw double-height detection. The double-height screw locking assembly 63 includes a carrier 631, a lifting cylinder 632, an electric screwdriver 633, a CCD camera 634, a suction nozzle sleeve 635, and a double-height component 636.

[0026] During implementation, the X-axis linear module 61 and the Z-axis linear module 62 drive the double-probe screw fastening assembly 63 to absorb the screws in the feeder 52 and fasten the vehicle-mounted camera in the fixture body 221.

[0027] Furthermore, such as Figure 7 , Figure 8 as well as Figure 9As shown, a lifting cylinder 632 is mounted on the surface of the carrier 631. An electric screwdriver 633 with a bit is slidably connected to the surface of the carrier 631, and the slide of the electric screwdriver 633 is fixedly connected to the output end of the lifting cylinder 632. The electric screwdriver 633 is used to attach screws to the product. The carrier 631 is mounted on the sliding seat of the Z-axis linear module 62. A CCD camera 634 is also fixed to the surface of the carrier 631. The CCD camera 634 is used for visual positioning during screw attachment. A suction nozzle sleeve 635 for screw adsorption is installed at the bottom of the carrier 631. A double height probe assembly 6 is provided between the carrier 631, the electric screwdriver 633, and the suction nozzle sleeve 635. 36. The dual height probe assembly 636 is used for dual height detection after screw fastening. The dual height probe assembly 636 includes two upper and lower distance sensors mounted on the surface of the carrier 631. An upper sensing plate is mounted on the surface of the electric screwdriver 633 and directly below the upper distance sensor. The upper distance sensor, in conjunction with the upper sensing plate, is used to test the height of the screwdriver bit, and the test value is A1. A lower sensing plate is mounted on the surface of the suction sleeve 635 and directly below the lower distance sensor. The lower distance sensor, in conjunction with the lower sensing plate, is used to test the height of the screwdriver bit, and the test value is A2. In specific implementation, when A1-A2>AA is the height of the screw cap, it is judged as floating height.

[0028] During implementation, dual height detection is performed using the dual height detection component 636. During detection, the upper distance sensor, in conjunction with the upper sensing plate, is used to test the height of the bit, and the test value is A1. The lower distance sensor, in conjunction with the lower sensing plate, is used to test the height of the bit, and the test value is A2. When A1-A2>A (A is the height of the screw cap), it is judged as floating height, indicating that it is not properly locked. After the detection, the torque tester 42 on the surface of the support frame 41 is used for torque detection. After the detection is qualified, the product is driven back to its original position by the Y-axis linear module 21. After returning to its original position, the part is manually unloaded.

[0029] Working principle: When in use, the feeder 52 filled with screws is placed on the surface of the fixed frame 51 by the operator. The feeder 52 is then fixed by rotating the adjusting screw 54.

[0030] The vehicle-mounted camera is then manually placed on the surface of the fixture body 221. During placement, it is positioned by the positioning block 223. Then, the vehicle-mounted camera is fixed by the cylinder clamp 222. After the fixation is completed, the device is operated by the touch screen 11. The Y-axis linear module 21 will move the vehicle-mounted camera on the surface of the fixture body 221 to the barcode scanning mechanism 3. The barcode scanning CCD 32 on the surface of the bracket 31 will scan the barcode of the vehicle-mounted camera. After scanning, the Y-axis linear module 21 will continue to move the vehicle-mounted camera to the torque testing mechanism 4.

[0031] Then, the X-axis linear module 61 and the Z-axis linear module 62 drive the double-probe high-profile screw fastening assembly 63 to adsorb the screws in the feeder 52 and fasten them to the vehicle-mounted camera in the fixture body 221. In specific implementation, the robotic arm fastening mechanism 6 first drives the suction nozzle sleeve 635 to move down into the feeder 52 to adsorb the screws. After adsorption, the Z-axis linear module 62 drives the double-probe high-profile screw fastening assembly 63 to return to its original position. Then, the X-axis linear module 61 drives the double probes on the surface of the Z-axis linear module 62 to fasten the screws. The high-strength screw fastening assembly 63 moves to the top of the vehicle camera in the feeding mechanism 2. Then, the Z-axis linear module 62 drives the double-probe high-strength screw fastening assembly 63 to move down. During the downward movement, the CCD camera 634 monitors the positioning of the area to be fastened on the vehicle camera. When the screw adsorbed by the suction sleeve 635 contacts the area to be fastened on the vehicle camera, the lifting cylinder 632 drives the electric screwdriver 633 to move down, so that its bit enters the suction sleeve 635 and presses it against the screw. Finally, the electric screwdriver 633 rotates the screw to fasten it onto the vehicle camera.

[0032] After the screw cap is locked, a dual height detection is performed using the dual height detection component 636. During the detection, the upper distance sensor and the upper sensing plate are used to test the height of the screw cap, and the test value is A1. The lower distance sensor and the lower sensing plate are used to test the height of the screw cap, and the test value is A2. When A1-A2>A (A is the height of the screw cap), it is judged as floating height, indicating that the screw cap is not locked in place. After the detection, the torque tester 42 on the surface of the support frame 41 is used to continue the torque detection. After the detection is qualified, the product is driven back to its original position by the Y-axis linear module 21. After returning to its original position, the product is manually unloaded.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A semi-automatic screw locking device comprising a casing (1), characterized in that: The surface of the shell (1) is provided with a touch screen (11) for the control of the whole device; the left and right ends of the shell (1) are provided with feeding mechanisms (2) for product feeding; the surface of the shell (1) and on one side of the feeding mechanism (2) is provided with a code scanning mechanism (3), one side of the code scanning mechanism (3) is provided with a torque testing mechanism (4) for torque detection, the center of the surface of the shell (1) is provided with two screw feeding mechanisms (5), and the upper side of the feeding mechanism (2) is provided with a mechanical hand locking mechanism (6) for sucking the screw in the screw feeding mechanism (5) and locking it on the product in the feeding mechanism (2); The mechanical hand locking mechanism (6) comprises a double-probe high screw locking assembly (63) for screw locking and double-probe high detection, and the double-probe high screw locking assembly (63) comprises a carrier (631), a lifting cylinder (632), an electric screwdriver (633), a CCD camera (634), a suction nozzle sleeve (635) and a double-probe high assembly (636). The surface of the carrier (631) is provided with the lifting cylinder (632), the electric screwdriver (633) with a screwdriver head is slidably connected to the surface of the carrier (631), and the sliding table of the electric screwdriver (633) is fixedly connected to the output end of the lifting cylinder (632), and the electric screwdriver (633) is used for locking the screw on the product. The bottom of the carrier (631) is provided with a suction nozzle sleeve (635) for sucking the screw, and the double-probe high assembly (636) is arranged between the carrier (631), the electric screwdriver (633) and the suction nozzle sleeve (635), and the double-probe high assembly (636) is used for double-probe high detection after screw locking.

2. A semi-automatic screw locking device according to claim 1, characterized in that: The feeding mechanism (2) comprises a Y-axis linear module (21) and a product jig (22), the Y-axis linear module (21) is fixedly connected to the surface of the shell (1), and the product jig (22) is arranged on the sliding seat of the Y-axis linear module (21).

3. A semi-automatic screw locking device according to claim 2, characterized in that: The product jig (22) comprises a jig body (221), a cylinder clamping plate (222) and a positioning block (223), the jig body (221) is fixedly connected to the sliding seat of the Y-axis linear module (21), and the surface of the jig body (221) is provided with the positioning block (223) for limiting.

4. A semi-automatic screw locking device according to claim 3, characterized in that: The both sides of the surface of the jig body (221) are fixedly provided with the cylinder clamping plate (222), and the cylinder clamping plate (222) cooperates with the positioning block (223) to clamp and position the vehicle-mounted camera product.

5. The semi-automatic screw locking device according to claim 1, characterized in that: The code scanning mechanism (3) comprises a bracket (31) and a code scanning CCD (32), the bracket (31) is fixedly connected to the surface of the shell (1), and the code scanning CCD (32) is arranged on the surface of the bracket (31), and the code scanning CCD (32) is used for code scanning of the product.

6. The semi-automatic screw locking device according to claim 1, characterized in that: The torsion test mechanism (4) comprises a support frame (41) and a torsion tester (42), the support frame (41) is fixedly connected to the surface of the casing (1), and the surface of the support frame (41) is provided with the torsion tester (42), which is used for torsion test work after the product is locked.

7. The semi-automatic screw locking device according to claim 1, characterized in that: The mechanical hand locking mechanism (6) further comprises an X-axis linear module (61) and a Z-axis linear module (62), the X-axis linear module (61) is fixedly connected to the surface of the casing (1), the Z-axis linear module (62) is installed on the sliding seat of the X-axis linear module (61), and the carrier (631) is installed on the sliding seat of the Z-axis linear module (62).

8. The semi-automatic screw locking device according to claim 1, characterized in that: The screw feeding mechanism (5) comprises a fixing frame (51), a feeder (52), a limiting block (53) and an adjusting screw (54), the fixing frame (51) is fixedly connected to the surface of the casing (1), and the surface of the fixing frame (51) is provided with the feeder (52).

9. A semi-automatic screw locking device according to claim 8, characterized in that: The surface of the fixing frame (51) is provided with a plurality of limiting blocks (53), which are used for limiting work after the feeder (52) is placed, and the adjusting screw (54) is screwed on one side of the fixing frame (51) through the connecting plate, which is used for locking and fixing work of the feeder (52).

10. The semi-automatic screw locking device according to claim 1, characterized in that: The surface of the carrier (631) is further fixed with a CCD camera (634), which is used for visual positioning work when the product screw is locked, the double probe high assembly (636) comprises two upper and lower distance sensors installed on the surface of the carrier (631), and the upper sensing sheet is installed on the surface of the electric screwdriver (633) and directly below the upper distance sensor; the lower sensing sheet is installed on the surface of the suction nozzle sleeve (635) and directly below the lower distance sensor.

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