Anti-misoperation threaded fastener accurate tightening device

Abstract

The invention discloses an anti-misoperation precise screwing device for a threaded fastener. The anti-misoperation precise screwing device comprises a workbench; pressing and attaching assemblies are arranged on the positioning platforms; the torsion gun comprises a driving motor, a rotating bit and a movable plate, one end of the rotating bit is driven to be rotationally arranged in a connecting cavity of the driving motor, the movable plate is arranged in a movable groove in the surface of the other end of the rotating bit in a radial sliding mode, and the adjusting mechanism is used for driving the movable plate to slide in the movable groove so as to adjust the size of the end of the rotating bit. Fasteners of different models can be connected in a butt joint mode. And the sensing assembly is used for sensing the position of the movable plate and is associated with a torsion controller on the workbench so as to control the driving motor to output corresponding torsion. The torque gun can solve the problems that when an existing torque gun is used, a screwdriver needs to be replaced on the basis of the type of a fastener, operation is tedious, the equipment cost is increased, the working time is prolonged, appropriate torque cannot be applied on the basis of the corresponding type, and the assembly quality and the assembly efficiency are poor.

Description

Technical Field

[0001] The present invention relates to the technical field of screw tightening devices, and more particularly to an anti-misoperation precise tightening device for threaded fasteners. Background Art

[0002] Currently, screw tightening operations are generally carried out manually using a screwdriver or by applying torque with a torque gun. However, when using existing torque guns, the bit needs to be replaced based on the model of the fastener, which is cumbersome to operate, increases equipment costs and operation time, and cannot apply the appropriate torque based on the corresponding model, resulting in poor assembly quality and efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an anti-misoperation precise tightening device for threaded fasteners to solve the problems that when using existing torque guns, the bit needs to be replaced based on the model of the fastener, which is cumbersome to operate, increases equipment costs and operation time, and cannot apply the appropriate torque based on the corresponding model, resulting in poor assembly quality and efficiency.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: An anti-misoperation precise tightening device for threaded fasteners, comprising:

[0005] A workbench;

[0006] A plurality of positioning platforms are arranged on the workbench, and an extension mounting plate is provided thereon, and a pressing component is arranged on the mounting plate;

[0007] A torque gun, which includes a driving motor, a rotating bit, and a movable plate. One end of the rotating bit is rotatably arranged in the connection cavity of the driving motor, and the movable plate is radially slidably arranged in the movable groove on the other end surface of the rotating bit. An adjusting mechanism is used to drive the movable plate to slide in the movable groove, thereby adjusting the size of the end of the rotating bit to dock with fasteners of different models;

[0008] An induction component is used to sense the position of the movable plate and associate with a torque controller on the workbench to control the driving motor to output corresponding torque;

[0009] A switch box is arranged on the workbench.

[0010] As a further description of the above technical solution:

[0011] The pressing component is an elbow clamp.

[0012] As a further description of the above technical solution:

[0013] The induction assembly includes a first induction module and a second induction module. The first induction module and the second induction module, which are inductively associated with each other, are respectively disposed on the opposite end faces of the drive motor and the movable plate. A plurality of the first induction modules are arranged at intervals along the radial direction of the end face of the drive motor.

[0014] As a further description of the above technical solution:

[0015] The first induction module and the second induction module are ray sensors.

[0016] As a further description of the above technical solution:

[0017] A storage box is arranged on the workbench. A placement groove is formed in the storage box. The torque wrench is placed in the placement groove, and the bottom of the groove extends obliquely downward from one side of its opening to the other side.

[0018] As a further description of the above technical solution:

[0019] The adjusting mechanism includes a first pressure regulating inner cavity and a second pressure regulating inner cavity. The first pressure regulating inner cavity is connected to the air supply mechanism. The air supply mechanism pumps high-pressure air into the second pressure regulating inner cavity through the first pressure regulating inner cavity to push the movable plate outwards along its radial direction.

[0020] As a further description of the above technical solution:

[0021] A plurality of insertion blocks are arranged on the inner side of the movable plate. The second pressure regulating inner cavity communicates with the movable groove through a plurality of insertion holes. The insertion blocks are slidably and sealingly inserted into the insertion holes.

[0022] As a further description of the above technical solution:

[0023] Inner guide blocks are arranged on the side surface of the movable groove. The inner guide grooves on the side surface of the movable plate are slidably butted against the inner guide blocks in the radial direction.

[0024] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0025] When the screw - tightening device of the present invention is in use, place the workpiece to be screwed and fixed on the positioning platform. Then, press and position the workpiece through the elbow clamp. Initially position the threaded fastener at the mounting hole of the workpiece. Hold the torque gun and insert the rotating bit into the counter - sunk head structure at the nut of the fastener. Start the air - supply mechanism, so that the inside of the first pressure - regulating cavity and the second pressure - regulating cavity is pressurized. The insertion block is pushed outwards along the insertion hole until the end of the movable plate firmly abuts against the side of the counter - sunk head structure. Thus, a full and stable docking between the bit and the fastener is achieved. At the same time, the sensing component senses the position of the movable plate and is associated with the torque controller to control the driving motor to output the corresponding torque, thereby achieving the precise tightening of the fastener. This screw - tightening device can automatically dock with different types of fasteners and automatically apply the corresponding torque based on type recognition, thus achieving efficient and precise fastener tightening operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of an anti - misoperation precise tightening device for threaded fasteners.

[0028] Figure 2 It is a schematic structural diagram of the torque gun in an anti - misoperation precise tightening device for threaded fasteners.

[0029] Figure 3 It is a partial cross - sectional view of the driving motor and the rotating bit in an anti - misoperation precise tightening device for threaded fasteners.

[0030] Figure 4 It is a partial cross - sectional view of the rotating bit and the movable plate in an anti - misoperation precise tightening device for threaded fasteners.

[0031] LEGEND DESCRIPTION:

[0032] 1. Workbench; 2. Positioning platform; 3. Mounting plate; 4. Press - attaching component; 5. Torque gun; 6. Driving motor; 61. Connection cavity; 62. First sensing module; 63. First pressure - regulating cavity; 7. Rotating bit; 71. Movable slot; 72. Insertion hole; 73. Second pressure - regulating cavity; 74. Inner guide block; 8. Movable plate; 81. Second sensing module; 82. Insertion block; 83. Inner guide slot; 9. Torque controller; 10. Switch box; 11. Storage box; 12. Placement slot; 13. Air - supply mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0037] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] Please refer to Figures 1-4 , the present invention provides a technical solution: an anti-misoperation threaded fastener precise tightening device, comprising:

[0040] Workbench 1;

[0041] A plurality of positioning platforms 2, which are arranged on the workbench 1, on which an extended mounting plate 3 is installed, and a pressing component 4 is arranged on the mounting plate 3;

[0042] A torque gun 5, which includes a driving motor 6, a rotating bit 7, and a movable plate 8. One end of the rotating bit 7 is rotatably arranged in a connection cavity 61 of the driving motor 6 under driving. The movable plate 8 is radially slidably arranged in a movable groove 71 on the surface of the other end of the rotating bit 7. An adjusting mechanism is used to drive the movable plate 8 to slide in the movable groove 71, thereby adjusting the size of the end of the rotating bit 7 to dock with fasteners of different models;

[0043] An induction component, which is used to sense the position of the movable plate 8 and is associated with a torque controller 9 on the workbench 1 to control the driving motor 6 to output corresponding torque;

[0044] A switch box 10, which is arranged on the workbench 1.

[0045] The pressing component 4 is an elbow clamp. During use, the workpiece to be screwed and fixed is placed on the positioning platform 2, and then the workpiece is pressed and positioned by the elbow clamp to ensure the positioning strength.

[0046] The adjusting mechanism includes a first pressure regulating inner cavity 63 and a second pressure regulating inner cavity 73. The first pressure regulating inner cavity 63 is connected to a gas supply mechanism 13. The gas supply mechanism 13 pumps high-pressure air into the second pressure regulating inner cavity 73 through the first pressure regulating inner cavity 63 to push the movable plate 8 outwards along its radial direction. A plurality of insertion blocks 82 are arranged on the inner side of the movable plate 8. The second pressure regulating inner cavity 73 communicates with the movable groove 71 through a plurality of insertion holes 72. The insertion blocks 82 are slidably and sealingly inserted into the insertion holes 72. An inner guide block 74 is arranged on the side of the movable groove 71. The inner guide groove 83 on the side of the movable plate 8 is radially slidably docked with the inner guide block 74. Thus, the stability of the movable plate 8 being radially pushed out and sliding in the movable groove 71 is ensured.

[0047] The working principle of the device for accurately tightening threaded fasteners to prevent misoperation of the present embodiment includes: when in use, the workpiece to be screwed and fixed is placed on the positioning platform 2, and then the workpiece is pressed and positioned by the elbow clamp; the threaded fastener is initially positioned at the mounting hole of the workpiece, the torque gun 5 is held, and the rotating screwdriver bit 7 is inserted into the countersunk structure at the nut of the fastener, and the air supply mechanism 13 is started, so that the first pressure regulating inner cavity 63 and the second pressure regulating inner cavity 73 are pressurized, and the plug block 82 is pushed outward along the insertion hole 72 until the end of the movable plate 8 is firmly abutted against the side of the countersunk structure, thereby achieving full and stable docking between the screwdriver bit and the fastener, and at the same time, the sensing component senses the position of the movable plate 8 and associates with the torque controller 9 to control the drive motor 6 to output the corresponding torque, thereby achieving accurate tightening of the fastener. The pressurization amount of the pressure regulating inner cavity can be a set fixed value, which needs to ensure that the movable plate 8 can achieve stable abutment and full docking with the fastener when it is in different positions. In addition, the screwdriver bit can also be set as a structure that is sleeved on the fastener nut, so that the pressure regulating cavity is in a negative pressure state during use. At this time, the movable plate 8 moves radially inward to be sleeved on the fastener to achieve docking positioning.

[0048] Embodiment 2:

[0049] See also Figures 2-4 On the basis of the above-mentioned embodiment 1, preferably, the sensing component includes a first sensing module 62 and a second sensing module 81, and the first sensing module 62 and the second sensing module 81, which are inductively associated with each other, are respectively arranged on the opposite end faces of the driving motor 6 and the movable plate 8, and a plurality of the first sensing modules 62 are arranged radially at intervals along the end face of the driving motor 6. Among them, the first sensing module 62 and the second sensing module 81 are radiation sensors. When this embodiment is used, after the screwdriver bit and the fastener are fully and stably docked, the switch is manually triggered, the second sensing module 81 emits radiation, and the first sensing module 62 at the corresponding position receives the radiation, thereby identifying the position of the movable plate 8, that is, obtaining the corresponding size after the rotating screwdriver bit 7 is opened, and then outputting the corresponding torque based on the fastener model, thereby ensuring efficient and accurate tightening.

[0050] Embodiment three:

[0051] See also Figure 1 On the basis of the above-mentioned embodiment 1, preferably, a storage box 11 is provided on the workbench 1, and a placement groove 12 is provided on the storage box 11. The torque gun 5 is placed in the placement groove 12, and the bottom of the groove extends downward from one side of the opening to the other side. This facilitates the storage and use of the torque gun 5.

[0052] In summary, due to the adoption of the above technical solution, the device for accurately tightening threaded fasteners to prevent misoperation in this embodiment has the following beneficial effects compared with the prior art:

[0053] When the screw tightening device of the present invention is in use, the workpiece to be screwed and fixed is placed on the positioning platform. Then, the workpiece is pressed and positioned by the elbow clamp. The threaded fastener is preliminarily positioned at the mounting hole of the workpiece. Hold the torque gun and insert the rotating bit into the counterbore structure at the nut of the fastener. Start the air supply mechanism to pressurize the inside of the first pressure regulating cavity and the second pressure regulating cavity. The insert block is pushed out along the insertion hole until the end of the movable plate firmly abuts against the side of the counterbore structure, thereby realizing the full and stable docking of the bit and the fastener. At the same time, the sensing component senses the position of the movable plate and is associated with the torque controller to control the drive motor to output the corresponding torque, thereby realizing the precise tightening of the fastener. This screw tightening device can automatically dock different types of fasteners and automatically apply the corresponding torque based on type recognition, thereby realizing efficient and precise fastener tightening operations.

[0054] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An anti-misoperation precise tightening device for threaded fasteners, characterized in that, Including: Workbench; A plurality of positioning platforms, which are arranged on the workbench, and an extension mounting plate is provided thereon, and a pressing component is arranged on the mounting plate; A torque gun, which includes a driving motor, a rotating bit, and a movable plate. One end of the rotating bit is rotatably arranged in the connection cavity of the driving motor, and the movable plate is radially slidably arranged in the movable groove on the other end surface of the rotating bit. The adjusting mechanism is used to drive the movable plate to slide in the movable groove, thereby adjusting the size of the end of the rotating bit to dock with fasteners of different models; An induction component, which is used to sense the position of the movable plate and is associated with a torque controller on the workbench to control the driving motor to output corresponding torque; A switch box, which is arranged on the workbench.

2. The precise tightening device for anti-misoperation threaded fasteners according to claim 1, characterized in that, The pressing component is an elbow clamp.

3. The precise tightening device for anti-misoperation threaded fasteners according to claim 1, characterized in that, The induction component includes a first induction module and a second induction module. The mutually inductively associated first induction module and second induction module are respectively arranged on the opposite end faces of the driving motor and the movable plate, and a plurality of the first induction modules are radially spaced along the end face of the driving motor.

4. The precise tightening device for anti-misoperation threaded fasteners according to claim 3, characterized in that, The first induction module and the second induction module are ray sensors.

5. The precise tightening device for anti-misoperation threaded fasteners according to claim 1, characterized in that, A storage box is arranged on the workbench, a placement groove is opened on the storage box, the torque gun is placed in the placement groove, and the bottom of the groove extends obliquely downward from one side of its opening to the other side.

6. The precise tightening device for anti-misoperation threaded fasteners according to claim 1, characterized in that, The adjusting mechanism includes a first pressure regulating inner cavity and a second pressure regulating inner cavity. The first pressure regulating inner cavity is connected to a gas supply mechanism, and the gas supply mechanism pumps high-pressure air into the second pressure regulating inner cavity through the first pressure regulating inner cavity to push the movable plate out radially outward.

7. An anti-misoperation threaded fastener precise tightening device according to claim 6, characterized in that, A plurality of insertion blocks are arranged on the inner side of the movable plate, the second pressure regulating inner cavity communicates with the movable groove through a plurality of insertion holes, and the insertion blocks are slidably and sealingly inserted into the insertion holes.

8. An anti-misoperation thread fastener precise tightening device according to claim 1, characterized in that, An inner guide block is arranged on the side of the movable groove, and the inner guide groove on the side of the movable plate is slidably and radially docked with the inner guide block.

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