A semi-automatic screw locking device

Abstract

The present application relates to the technical field of screw locking of vehicle-mounted camera, in particular to a kind of semi-automatic screw locking equipment, including shell, the left and right ends in the shell are provided with feeding mechanism, the surface of the shell and located the side of feeding mechanism is equipped with code scanning mechanism, the side of code scanning mechanism is provided with the torsion testing mechanism for detecting torsion, the center of the surface of the shell is provided with two groups of screw supply mechanism, the top of feeding mechanism is provided with mechanical hand locking mechanism.The present application is realized by being provided with automatic feeding, automatic locking, solves the problem that existing technology needs manual locking, ensures locking quality;The present application realizes double Y axis ping-pong type operation, while using manual feeding and discharging, one station manual feeding, one station automatic locking, two stations work in turn, improve work efficiency;The present application is provided with double height detection components and cooperates with torsion tester, to ensure that screw can be locked in place, improve the yield of screw locking.

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, screw fastening of existing vehicle cameras is done manually, resulting in low automation and inconsistent quality. Furthermore, existing technologies perform screw fastening on vehicle cameras one by one, leading to low efficiency and insufficient production capacity. Additionally, manual screw fastening cannot detect any unevenness or test the torque of vehicle cameras, thus reducing 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 arm fastening mechanism includes a dual-height screw fastening assembly, which is used for screw fastening and dual-height detection of screws. The dual-height screw fastening assembly includes a carrier, a lifting cylinder, an electric screwdriver, a CCD camera, a suction nozzle sleeve, and the dual-height assembly. 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 fasten screws onto the product. A suction nozzle sleeve for adsorbing screws is mounted at the bottom of the carrier. The dual-height assembly is arranged between the carrier, the electric screwdriver, and the suction nozzle sleeve. The dual-height assembly is used for dual-height detection after screw fastening.

[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 is locked in place.

[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 to the surface of the carrier. The CCD camera is used for visual positioning during product screw fastening. 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 float detection and torque testing during screw fastening, thereby ensuring that the screws are properly fastened 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 double-probe screw fastening assembly of the present invention; Figure 8This is an exploded view of the double-probe screw fastening 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 products 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 suck up the screws in the feeder 52 and fasten them to 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 fasten screws onto 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 fastening. A suction nozzle sleeve 635 for adsorbing screws 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 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-profile 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-profile screw fastening assembly 63 to move down. During the downward movement, the CCD camera 634 monitors the positioning of the part of the vehicle camera to be fastened. When the screw adsorbed by the suction sleeve 635 contacts the part of the vehicle camera to be fastened, 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 locking, 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 bit, and the test value is A1. The lower distance sensor and the lower sensing plate are 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 locked in place. 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, it 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 fastening device, comprising a housing (1), characterized in that: A touch screen (11) is installed on the surface of the housing (1), which is used for the control of the entire device. Feeding mechanisms (2) are provided at both ends inside the housing (1), which are used for product loading. 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 provided on the sliding seat of the Y-axis linear module (21). A barcode scanning mechanism (3) is installed on the surface of the housing (1) and on one side of the feeding mechanism (2). A barcode scanning mechanism (3) is provided on one side of the barcode scanning mechanism (3) for... A torque testing mechanism (4) for detecting torque 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. Two sets of screw feeding mechanisms (5) are provided at the center of the surface of the housing (1). 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 in the screw feeding mechanism (5) and lock them onto the product in the feeding mechanism (2). The robotic arm fastening mechanism (6) includes a double-probe screw fastening assembly (63), which is used for screw fastening and double-probe screw detection. The double-probe screw fastening 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-probe assembly (636). The lifting cylinder (632) is mounted on the surface of the carrier (631), and an electric screwdriver (633) with a bit is slidably connected to the surface of the carrier (631). 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 fasten screws onto the product. The bottom of the carrier (631) A suction sleeve (635) for adsorbing screws is installed. A dual height detection assembly (636) is provided between the carrier (631), the electric screwdriver (633), and the suction sleeve (635). The dual height detection assembly (636) is used for dual height detection after screw fastening. A CCD camera (634) is also fixed on the surface of the carrier (631). The CCD camera (634) is used for visual positioning when screws are fastened. The dual height detection assembly (636) includes two upper and lower distance sensors installed on the surface of the carrier (631). An upper sensing plate is installed on the surface of the electric screwdriver (633) and directly below the upper distance sensor. A lower sensing plate is installed on the surface of the suction sleeve (635) and directly below the lower distance sensor.

2. The semi-automatic screw fastening device according to claim 1, characterized in that: The product fixture (22) includes a fixture body (221), a cylinder clamp (222) and a positioning block (223). The fixture body (221) is fixed to the sliding seat of the Y-axis linear module (21), and the positioning block (223) for limiting is installed on the surface of the fixture body (221).

3. The semi-automatic screw fastening device according to claim 2, characterized in that: Both sides of the surface of the fixture body (221) are fixed with cylinder clamps (222), which, together with the positioning block (223), are used for positioning and clamping of the vehicle camera product.

4. A semi-automatic screw-locking device according to claim 1, characterized in that: The scanning mechanism (3) includes a bracket (31) and a scanning CCD (32). The bracket (31) is fixed to the surface of the housing (1), and the scanning CCD (32) is installed on the surface of the bracket (31). The scanning CCD (32) is used for scanning the product.

5. A semi-automatic screw fastening device according to claim 1, characterized in that: The robotic arm locking mechanism (6) further 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 mounted on the sliding seat of the X-axis linear module (61). The carrier (631) is mounted on the sliding seat of the Z-axis linear module (62).

6. A semi-automatic screw-fastening device according to claim 1, characterized in that: The screw feeding mechanism (5) includes a fixed frame (51), a feeder (52), a limit block (53) and an adjusting screw (54). The fixed frame (51) is fixed to the surface of the housing (1), and the feeder (52) is placed on the surface of the fixed frame (51).

7. A semi-automatic screw fastening device according to claim 6, characterized in that: The surface of the fixed frame (51) is equipped with multiple sets of limiting blocks (53), which are used to limit the position of the feeder (52) after it is placed. One side of the fixed frame (51) is connected to an adjusting screw (54) through a connecting plate, which is used to lock and fix the feeder (52).

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