Connection testing machine with labor-saving mechanical arm, heightened precision and large-torque gun

Abstract

The invention relates to a labor-saving mechanical arm heightening precision large-torque gun connective testing machine which comprises a stand column and a stand column rotating joint arranged at the top end of the stand column, one side of the stand column rotating joint is rotationally connected with a middle rotating joint rotating around the Y axis, and one side of the middle rotating joint is connected with a lifting arm through a lifting assembly. The right end of the lifting arm is rotationally connected with a rack through a tail end rotating joint, and an electric screw machine is arranged in the rack. According to the labor-saving mechanical arm heightening precision large-torque gun connective testing machine, the mechanical arm moves flexibly, and through cooperation of a stand column rotating joint (Y-axis), a middle rotating joint (Y-axis), a lifting air cylinder and a tail end joint, accurate adjustment of the position and angle of an electric screw machine in a three-dimensional space is achieved, and rapid positioning is achieved; and by combining the holding handle and the control box, the operation process is simplified, and the test preparation time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of screw joint testing, in particular to a joint testing machine comprising a labor-saving mechanical arm and a high-precision, high-torque gun. Background Art

[0002] Traditional electric screw machines have the following problems when performing high torque tests (such as bolt destruction tests and high torque tightening / loosening operations):

[0003] Safety hazards: Screws or fragments may fly due to high torque. Traditional fixed protective devices cannot completely cover the working area and cannot adapt to the height differences of the workpiece surface, resulting in blind spots in protection.

[0004] Poor adjustment flexibility: The robotic arm joints have insufficient degrees of freedom, making it difficult to accurately adjust the spatial position (height, angle) of the electric screw machine, affecting test efficiency.

[0005] Complex operation: Traditional multi-point protection requires independent drive mechanisms, structural redundancy, and high maintenance costs. At the same time, the protective device may block the line of sight, affecting the operator's real-time observation of the test status. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a bonding tester comprising a labor-saving mechanical arm and a high-precision, high-torque gun, which solves the above-mentioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A labor-saving mechanical arm plus a high-precision high-torque gun bonding tester, comprising a column and a column rotary joint provided at the top of the column, one side of the column rotary joint being rotatably connected to an intermediate rotary joint that rotates around the Y-axis, one side of the intermediate rotary joint being connected to a lifting arm via a lifting assembly, and the right end of the lifting arm being rotatably connected to a frame with a built-in electric screw driver via a terminal rotary joint;

[0008] The surface of the frame is provided with a protective mechanism sleeved on the surface of the electric screw machine;

[0009] The protective mechanism includes a sleeve mounted on the top of the frame, the inner cavity of the sleeve is provided with a plurality of sliding grooves arranged in a ring array, the inner cavities of the plurality of sliding grooves are all slidably connected with lifting rods, the bottom ends of the plurality of lifting rods are all fixedly connected with protective plates, the plurality of protective plates are combined to form a circular ring, and the sides of two adjacent protective plates are slidably connected, and the plurality of protective plates are all lifted by a lifting mechanism.

[0010] As a further solution of the present invention: a control box for controlling the electric screw machine is provided on the side of the column.

[0011] As a further solution of the present invention: the lifting assembly includes a rotating frame rotatably arranged at the right end of the middle rotating joint, a lifting cylinder is rotatably connected to one side of the rotating frame, the left end of the lifting arm is rotatably connected to the right side of the rotating frame, and the end of the lifting cylinder piston rod is rotatably connected to the bottom of the lifting arm through a rotating member. When in use, the middle rotating joint and the rotating frame can be rotated around the Y axis to adjust the orientation, and then the lifting arm is driven to rise by the lifting cylinder to adjust the height of the frame, and the electric screw machine is driven to move up and down, and the position of the electric screw machine can be quickly adjusted. After the adjustment is in place, the screw is trapped by the collar under the electric screw machine and is ready for testing. At this time, through The protective mechanism performs protection, starts the motor to rotate the drive gear, drives the ring to rotate counterclockwise on the surface of the sleeve, releases the pulling rope, and under the action of gravity, the protective plate drives the lifting rod to automatically descend in the sliding groove, and when the protective plate descends and contacts the workpiece below, it will stop descending. At this time, other protective plates can still continue to descend. Through a single driving component, it can be driven synchronously at multiple points in time, and can adapt to the height of the contact plane, which has a better protective effect. At this time, multiple protective plates are surrounded by the screws, and then the screws are tested, and various bolts are subjected to destructive tests, tightening and loosening operations. The safety performance is higher and can effectively prevent possible flying injuries during the test.

[0012] As a further solution of the present invention: both sides of the frame are fixedly connected with gripping handles, and the surface of the gripping handles is provided with a control switch electrically connected to the control box. After the electric screw machine is moved into place by the gripping handles, the electric screw machine can be opened and closed by pressing the control switch.

[0013] As a further solution of the present invention: the lifting mechanism includes a ring rotatably arranged on the surface of the sleeve and a motor fixed on the surface of the sleeve, the output end of the motor is fixedly connected to a gear meshing with the surface of the ring, the bottom of the ring is fixedly connected to the top of the protective plate through a lifting rope, and the motor drives the gear to rotate, driving the ring to rotate on the surface of the sleeve, pulling the lifting rope to retract and release, to adjust the height of the protective plate, and by retracting and releasing the lifting rope, when the protective plate descends and contacts the workpiece below, it will stop descending. At this time, other protective plates can still continue to descend. A single driving component can synchronously drive multiple points in time, and can adapt to the height of the contact plane, so as to provide better protection.

[0014] As a further solution of the present invention: the surface of the sleeve is rotatably connected to a fixed pulley for guiding the pulling rope. Through the setting of the fixed pulley, the pulling rope is guided so that its lower section always remains vertical, thereby effectively lifting the protective plate.

[0015] As a further solution of the present invention: the plurality of protection plates are all transparent plastic arc plates, which can provide protection without blocking the sight, so that the operator can observe the status of the screws.

[0016] Robotic arm positioning

[0017] Through the control box operation, the column rotation joint and the middle rotation joint rotate around the Y axis to adjust the horizontal position; the lifting cylinder drives the lifting arm to move up and down, driving the electric screw machine to the target height.

[0018] The operator fine-tunes the position of the frame by holding the handle so that the collar of the electric screw machine is aligned with the screw to be tested.

[0019] Protection agency activated

[0020] The motor drives the gear to rotate the collar counterclockwise, releasing the lifting rope, and the protective plate descends along the sliding groove under the action of gravity.

[0021] When a protective plate contacts the surface of the workpiece, the corresponding lifting rod stops moving, and the remaining protective plates continue to descend until they are completely in contact with the workpiece, forming a closed protective ring.

[0022] Test Execution

[0023] The electric screw machine performs high torque operation, the protective plate blocks splashes, and the transparent design allows the operator to observe the screw status.

[0024] After the test is completed, the motor reverses to retract the pull rope, the protection plate resets, and the robotic arm moves to the next test position.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] Adaptive security protection

[0027] Multi-point linkage protection: A single motor drives the gear-ring mechanism to synchronously control multiple lifting rods and protection plates, reducing system complexity.

[0028] Highly adaptive: The protective plate automatically stops descending after contacting the workpiece, and the remaining protective plates continue to descend to fit the surface, adapting to uneven workpieces to form a fully wrapped protective ring to prevent debris from flying.

[0029] Transparent visual design: The protective plate is made of transparent plastic, which takes into account both protection and operational visibility, making it easy to monitor the screw status in real time.

[0030] High-precision multi-degree-of-freedom adjustment

[0031] Flexible movement of the robotic arm: Through the coordination of the column rotation joint (Y-axis), the intermediate rotation joint (Y-axis), the lifting cylinder and the end joint, the position and angle of the electric screw machine in three-dimensional space can be accurately adjusted.

[0032] Quick positioning: The lifting cylinder drives the lifting arm up and down, and the combination of the grip handle and the control box simplifies the operation process and shortens the test preparation time.

[0033] Stable and reliable power transmission

[0034] Guide optimization: The fixed pulley ensures the vertical movement of the lifting rope, avoids the protection plate from tilting and getting stuck, and improves the stability of the protection mechanism.

[0035] Modular design: The protection mechanism and the frame are connected by a sleeve type, which is convenient for disassembly and maintenance and prolongs the life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the protective mechanism installed in the present invention;

[0038] Figure 3 It is a structural schematic diagram of the protection mechanism of the present invention.

[0039] In the figure: 1. Column; 2. Control box; 3. Column rotation joint; 4. Intermediate rotation joint; 5. Lifting cylinder; 6. Lifting arm; 7. Frame; 8. Electric screw driver; 9. Holding handle; 10. Sleeve; 11. Gear; 12. Ring; 13. Fixed pulley; 14. Sliding groove; 15. Lifting rod; 16. Pull rope; 17. Protective plate. DETAILED DESCRIPTION

[0040] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0041] See also Figure 1-3 The present invention provides a technical solution: a bonding tester with a labor-saving robotic arm and a high-precision, high-torque gun, comprising a column 1 and a column rotary joint 3 provided at the top of the column 1, one side of the column rotary joint 3 being rotatably connected to an intermediate rotary joint 4 rotating around a Y-axis, one side of the intermediate rotary joint 4 being connected to a lifting arm 6 via a lifting assembly, the right end of the lifting arm 6 being rotatably connected to a frame 7 with a built-in electric screw driver 8 via a terminal rotary joint;

[0042] The surface of the frame 7 is provided with a protective mechanism sleeved on the surface of the electric screw machine 8;

[0043] The protective mechanism includes a sleeve 10 mounted on the frame 7. The inner cavity of the sleeve 10 is provided with a plurality of sliding grooves 14 arranged in a ring array. The inner cavities of the plurality of sliding grooves 14 are all slidably connected with lifting rods 15. The bottom ends of the plurality of lifting rods 15 are all fixedly connected with protective plates 17. The plurality of protective plates 17 are combined to form a circular ring, and the sides of two adjacent protective plates 17 are slidably connected. The plurality of protective plates 17 are all lifted by a lifting mechanism.

[0044] As a further solution of the present invention: a control box 2 for controlling the electric screw machine 8 is provided on the side of the column 1.

[0045] As a further solution of the present invention: the lifting component includes a rotating frame rotatably arranged at the right end of the middle rotating joint 4, a lifting cylinder 5 is rotatably connected to one side of the rotating frame, the left end of the lifting arm 6 is rotatably connected to the right side of the rotating frame, and the end of the piston rod of the lifting cylinder 5 is rotatably connected to the bottom of the lifting arm 6 through a rotating member. When in use, the middle rotating joint 4 and the rotating frame can be rotated around the Y axis to adjust the orientation, and then the lifting arm 6 is driven to rise by the lifting cylinder 5 to adjust the height of the frame 7, and the electric screw machine 8 is driven to move up and down, and the position of the electric screw machine 8 can be quickly adjusted. After the adjustment is in place, the screw is trapped by the collar under the electric screw machine 8 and is ready for testing. At this time, the protective mechanism is used to Protection, start the motor to rotate the drive gear 11, drive the ring 12 to rotate counterclockwise on the surface of the sleeve 10, release the pulling rope 16, and under the action of gravity, the protection plate 17 drives the lifting rod 15 to automatically descend in the sliding groove 14, and when the protection plate 17 descends and contacts the workpiece below, it will stop descending. At this time, other protection plates 17 can still continue to descend. Through a single driving component, it can be driven synchronously at multiple points in time, and can adapt to the height of the contact plane, with better protection. At this time, multiple protection plates 17 are surrounded by the screws, and then the screws are tested, and various bolts are subjected to destructive tests, tightening and loosening operations, with higher safety performance, which can effectively prevent possible flying injuries during testing.

[0046] As a further solution of the present invention: gripping handles 9 are fixedly connected to both sides of the frame 7, and the surface of the gripping handles 9 is provided with a control switch electrically connected to the control box 2. After the electric screw machine 8 is moved into place by gripping the handles 9, the electric screw machine 8 is controlled to open and close by pressing the control switch.

[0047] As a further solution of the present invention: the lifting mechanism includes a ring 12 rotatably arranged on the surface of the sleeve 10 and a motor fixed on the surface of the sleeve 10, and the output end of the motor is fixedly connected to a gear 11 meshing with the surface of the ring 12, and the bottom of the ring 12 is fixedly connected to the top of the protective plate 17 through a lifting rope 16. The motor drives the gear 11 to rotate, driving the ring 12 to rotate on the surface of the sleeve 10, pulling the lifting rope 16 to retract and release, to adjust the height of the protective plate 17, and by the way of retracting and releasing the lifting rope 16, when the protective plate 17 descends and contacts the workpiece below, it will stop descending. At this time, other protective plates 17 can still continue to descend. Through a single driving component, it can be driven synchronously at multiple points in time, and can adapt to the height of the contact plane, so as to have a better protective effect.

[0048] As a further solution of the present invention, the surface of the sleeve 10 is rotatably connected to a fixed pulley 13 for guiding the pulling rope 16. Through the setting of the fixed pulley 13, the pulling rope 16 is guided so that its lower section is always kept vertical, thereby effectively lifting the protective plate 17.

[0049] As a further solution of the present invention, the plurality of protection plates 17 are all transparent plastic arc plates, which can provide protection without blocking the sight, so that the operator can observe the status of the screws.

[0050] Robotic arm positioning

[0051] Through the control box operation, the column rotation joint 3 and the middle rotation joint 4 rotate around the Y axis to adjust the horizontal position; the lifting cylinder 5 drives the lifting arm 6 to move up and down, driving the electric screw machine 8 to the target height.

[0052] The operator fine-tunes the position of the frame 7 by holding the handle 9 so that the collar of the electric screw machine is aligned with the screw to be tested.

[0053] Protection agency activated

[0054] The motor drives the gear 11 to drive the ring 12 to rotate counterclockwise, releasing the pulling rope 16, and the protection plate 17 descends along the sliding groove 14 under the action of gravity.

[0055] When a certain protective plate contacts the surface of the workpiece, the corresponding lifting rod 15 stops moving, and the remaining protective plates 17 continue to descend until they are completely in contact with the workpiece, forming a closed protective ring.

[0056] Test Execution

[0057] The electric screw machine 8 performs high torque operations for tightening, loosening or destructive testing, the protective plate 17 blocks splashes, and the transparent design allows the operator to observe the status of the screw.

[0058] After the test is completed, the motor reverses and retracts the pull rope 16, the protection plate 17 is reset, and the robotic arm moves to the next test position.

[0059] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A labor-saving mechanical arm and a high-precision high-torque gun bonding tester, comprising a column (1) and a column rotation joint (3) arranged at the top of the column (1), characterized in that: One side of the column rotary joint (3) is rotatably connected to an intermediate rotary joint (4) that rotates around the Y axis, one side of the intermediate rotary joint (4) is connected to a lifting arm (6) via a lifting assembly, and the right end of the lifting arm (6) is rotatably connected to a frame (7) with a built-in electric screw machine (8) via a terminal rotary joint; The surface of the frame (7) is provided with a protective mechanism sleeved on the surface of the electric screw machine (8); The protection mechanism includes a sleeve (10) sleeved on the frame (7), the inner cavity of the sleeve (10) is provided with a plurality of sliding grooves (14) arranged in a ring array, the inner cavities of the plurality of sliding grooves (14) are all slidably connected to lifting rods (15), the bottom ends of the plurality of lifting rods (15) are all fixedly connected to protection plates (17), the plurality of protection plates (17) are combined to form a ring, and the sides of two adjacent protection plates (17) are slidably connected, and the plurality of protection plates (17) are all lifted by a lifting mechanism.

2. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: A control box (2) for controlling an electric screw machine (8) is provided on the side of the column (1).

3. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: The lifting assembly includes a rotating frame rotatably arranged at the right end of the middle rotating joint (4), a lifting cylinder (5) is rotatably connected to one side of the rotating frame, the left end of the lifting arm (6) is rotatably connected to the right side of the rotating frame, and the end of the piston rod of the lifting cylinder (5) is rotatably connected to the bottom of the lifting arm (6) through a rotating member.

4. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: Both sides of the frame (7) are fixedly connected with gripping handles (9), and the surfaces of the gripping handles (9) are provided with control switches electrically connected to the control box (2).

5. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: The lifting mechanism comprises a collar (12) rotatably arranged on the surface of the sleeve (10) and a motor fixed on the surface of the sleeve (10); the output end of the motor is fixedly connected to a gear (11) meshing with the surface of the collar (12); the bottom of the collar (12) is fixedly connected to the top of the protective plate (17) via a lifting rope (16).

6. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: The surface of the sleeve (10) is rotatably connected to a fixed pulley (13) for guiding the pulling rope (16).

7. The bonding tester with a labor-saving mechanical arm and a high-precision, high-torque gun according to claim 1, characterized in that: The plurality of protection plates (17) are all transparent plastic arc plates.

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