Automatic head changing and arranging type gun hanging module

Abstract

The utility model discloses a kind of automatic head-changing arrangement type gun hanging module, including vertically arranged mounting base plate, electric screwdriver is arranged on mounting base plate and can be moved up and down, the lower end of mounting base plate is provided with horizontal mounting rack, horizontal mounting rack is provided with movable plate and can be moved left and right, movable plate is provided with several screwing heads arranged along its movement direction, the upper end of screwing head is set to be connected with the lower end of electric screwdriver, the lower end of screwing head is set to be connected with different model screwdriver, the position of screwing head and the position of electric screwdriver are correspondingly set. Automatic head-changing arrangement type gun hanging module designed by the utility model, through single electric screwdriver cooperation horizontal movement multiple screwing head layout, the quick switching of multiple model screwdriver is realized, and the efficiency of multi-specification screw mixed-line assembly is greatly improved. Adopt photoelectric sensor and baffle linkage positioning, ensure the accurate docking of screwdriver and electric screwdriver, and the reliability of the switching process is guaranteed by spring buffer design.

Description

Technical Field

[0001] This utility model belongs to the field of automation technology, specifically relating to an automatic head-changing, arranged gun-hanging module. Background Technology

[0002] In the field of automated assembly, screw tightening is a common process, especially when assembling screws of various sizes, often requiring frequent bit changes to accommodate different screw types. Traditional automated tightening equipment typically uses a single electric screwdriver in conjunction with a manual or robotic bit-changing mechanism, resulting in long bit-changing times, complex structures, high costs, and low efficiency. Some equipment uses a parallel arrangement of multiple electric screwdrivers, which avoids bit-changing time but leads to bulky modules, significantly increased costs, and difficulty in flexibly adapting to production line layouts. Furthermore, existing bit-changing mechanisms often lack efficient and accurate bit positioning and identification mechanisms, easily leading to misalignment or failed docking between the electric screwdriver and the bit, affecting assembly accuracy and production efficiency. Therefore, there is an urgent need for an automated tightening module that is compact, allows for rapid bit changing, provides accurate positioning, and can accommodate multiple bit types to solve these problems.

[0003] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide an automatic head-changing, arranged gun-hanging module.

[0005] To achieve the above and other related objectives, the technical solution provided by this utility model is: an automatic head-changing, arranged screwdriver hanging module, including a vertically arranged mounting base plate, on which an electric screwdriver that can move up and down is mounted. A horizontal mounting frame is provided at the lower end of the mounting base plate, and a movable moving plate that can move left and right is mounted on the horizontal mounting frame. Several tightening heads are arranged along the direction of movement on the moving plate. The upper end of each tightening head is configured to connect to the lower end of the electric screwdriver, and the lower end of each tightening head is configured to connect to different types of screwdriver bits. The positions of the tightening heads correspond to the positions of the electric screwdriver. In this solution, commonly used screwdriver bits of various types are first connected to the lower ends of the tightening heads. The product to be screwed is placed below the electric screwdriver. The moving plate moves the tightening head with the required screwdriver bit above the screw. Then, the electric screwdriver moves downwards and connects to the tightening head, and the tightening head rotates the electric screwdriver to tighten the screw.

[0006] Furthermore, the tightening head includes a rotating shaft with a sleeve mounted on it. A bearing is positioned between the sleeve and the rotating shaft. A return spring is fitted onto the upper end of the rotating shaft, and the bearing is located below the return spring. The sleeve is fixed to the lower end of the moving plate, and a tightening sleeve, which can be connected to the screwdriver bit, is fixed to the lower end of the rotating shaft. In this design, different types of screwdriver bits can be connected to the tightening head via the tightening sleeve, and then an electric screwdriver can be used to automatically tighten the screws. Furthermore, the moving plate is mounted on a horizontal guide rail, which is fixed to a horizontal mounting frame. The moving plate is connected to a horizontal cylinder, which is mounted on the horizontal mounting frame. In this design, the horizontal mounting frame is an angled component, and the horizontal cylinder and the horizontal guide rail are respectively mounted on the two side plates of the angled component's bending line.

[0007] Furthermore, the lower end face of the horizontal mounting bracket is provided with a plurality of photoelectric sensors arranged along the moving direction of the moving plate, and the tightening head is provided with a baffle corresponding to the photoelectric sensors. In this scheme, the number m of photoelectric sensors and the number n of tightening heads satisfy: m ≥ n - 1.

[0008] Furthermore, a connecting plate is provided below the moving plate, the sleeve is located between the moving plate and the connecting plate, the connecting plate is sleeved on the tightening head, and the baffle is fixed on the connecting plate. In this design, the baffle can move left and right synchronously with the moving plate, and works with a photoelectric sensor to achieve position detection and stop functionality at any time.

[0009] Furthermore, a vertical guide rail is provided on the mounting base plate, and the electric screwdriver is mounted on the vertical guide rail via a mounting base.

[0010] Furthermore, a vertical cylinder is provided on the mounting base plate, and the extended end of the vertical cylinder is connected to the mounting seat and drives it to move up and down.

[0011] Furthermore, the extended end of the vertical cylinder is connected to a T-shaped connecting post. The lower end of the connecting post passes through the mounting base and is fixed with a bolt. A compression spring is fitted onto the connecting post, and the compression spring is located above the mounting base. In this design, the lower end of the connecting post moves vertically through the mounting base, allowing the compression spring to provide a buffering effect when the vertical cylinder moves.

[0012] Furthermore, the inner wall of the tightening sleeve is provided with several locking protrusions. In this design, the locking protrusions can be spring-loaded steel balls, and a spring can be configured inside the steel balls.

[0013] Furthermore, the lower end of the tightening sleeve has a hexagonal interface. Under suitable conditions, this design allows the hexagonal interface to be used for tightening bolts without a screwdriver bit.

[0014] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: 1. High-efficiency head changing and compatibility with multiple bits: The horizontally moving and arranged tightening heads quickly move the required bits to the bottom of the electric screwdriver, eliminating the complex movements of traditional mechanical head changing mechanisms, greatly shortening the head changing time, and supporting the pre-installation and on-demand use of multiple types of bits, improving the efficiency of multi-specification screw production.

[0015] 2. Compact structure and cost optimization: The layout of a single electric screwdriver with multiple tightening heads avoids the bulky size and high cost caused by multiple electric screwdrivers in parallel. The screwdriver head switching is achieved by driving the moving plate with a horizontal cylinder. The structure is simple and reliable and easy to integrate into existing production lines.

[0016] 3. Precise positioning and reliable docking: Through the cooperation of photoelectric sensors and baffles, the position of the moving plate is detected and controlled in real time to ensure that the target tightening head stops precisely under the electric screwdriver; during the downward pressing of the electric screwdriver, the stability of the docking between the electric screwdriver and the screwdriver head is protected by the double buffer of the return spring and the compression spring, avoiding rigid impact damage to the components.

[0017] 4. High flexibility and scalability: The number of tightening heads can be flexibly configured according to actual needs, the number of photoelectric sensors can be adapted to the layout of tightening heads, and it supports the integration of the module's overall lifting and transfer mechanism, making it easy to adapt to working scenarios and automated production line layouts of different heights. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the module of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the module of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the horizontal mounting bracket and related structures of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the horizontal mounting bracket and related structures of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of multiple tightening heads and related structures of this utility model; Figure 6 This is a schematic diagram of a single tightening head structure of this utility model; In the attached diagrams above, 1. Mounting base plate; 2. Electric screwdriver; 3. Horizontal mounting bracket; 4. Moving plate; 5. Tightening head; 51. Rotating shaft; 52. Sleeve; 53. Return spring; 54. Tightening sleeve; 6. Screwdriver bit; 7. Horizontal guide rail; 8. Horizontal cylinder; 9. Photoelectric sensor; 10. Baffle; 11. Connecting plate; 12. Vertical guide rail; 13. Mounting base; 14. Vertical cylinder; 15. Connecting column; 16. Compression spring; 17. Cover; 18. Housing. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0024] Example 1: See appendix Figure 1 and attached Figure 2 As shown, this embodiment provides an automatic head-changing, arranged screwdriver hanging module, including a vertically arranged mounting base plate 1. An electric screwdriver 2 that can move up and down is mounted on the mounting base plate 1. A horizontal mounting frame 3 is located at the lower end of the mounting base plate 1, and the horizontal mounting frame 3 is equipped with a cover 17. A movable moving plate 4 that can move left and right is mounted on the horizontal mounting frame 3. Several tightening heads 5 are arranged along the direction of movement on the moving plate 4. The upper end of each tightening head 5 is configured to connect to the lower end of the electric screwdriver 2, and the lower end of each tightening head 5 is configured to connect to screwdriver bits 6 of different models. The positions of the tightening heads 5 correspond to the positions of the electric screwdriver 2. The tightening heads 5 can move horizontally to below the position of the electric screwdriver 2.

[0025] In use, first connect commonly used screwdriver bits 6 of various types to the lower end of several tightening heads 5. Place the product to be screwed below the corresponding position of the electric screwdriver 2. The moving plate 4 moves the tightening head 5 with the required screwdriver bit 6 above the screw. Then, the electric screwdriver 2 moves downward and connects with the tightening head 5, and the tightening head 5 rotates the electric screwdriver 2 to tighten the screw. It should be noted that the automatic head-changing arrangement gun module can be used with a corresponding transfer mechanism for overall lifting and lowering.

[0026] See appendix Figure 5 and attached Figure 6 As shown, the tightening head 5 includes a rotating shaft 51, a sleeve 52 is provided on the rotating shaft 51, a bearing is provided between the sleeve 52 and the rotating shaft 51, a return spring 53 is sleeved on the upper end of the rotating shaft 51, and the bearing is located below the return spring 53; the sleeve 52 is fixed to the lower end of the moving plate 4, and a tightening sleeve 54 that can be connected to the bit 6 is fixed to the lower end of the rotating shaft 51.

[0027] Different types of screwdriver bits 6 can be connected to the tightening head 5 via the tightening sleeve 54, and then the screws can be automatically tightened via the electric screwdriver 2. It should be noted that the upper structure of different types of screwdriver bits 6 is the same, and they can all be detachably connected to the tightening sleeve 54.

[0028] See appendix Figure 3 and attached Figure 4 As shown, the moving plate 4 is mounted on a horizontal guide rail 7, which is fixed to a horizontal mounting frame 3. The moving plate 4 is connected to a horizontal cylinder 8, which is mounted on the horizontal mounting frame 3. The horizontal mounting frame 3 is an angled component, with the horizontal cylinder 8 and the horizontal guide rail 7 mounted on two side plates along the bending line of the angled component. Several photoelectric sensors 9 are arranged along the moving direction of the moving plate 4 on the lower end face of the horizontal mounting frame 3, and a baffle 10 corresponding to the photoelectric sensors 9 is provided on the tightening head 5.

[0029] The number m of photoelectric sensors 9 and the number n of tightening heads 5 satisfy the condition: m ≥ n - 1. In specific embodiments, the number of photoelectric sensors 9 is usually one less than the number of tightening heads 5.

[0030] In a specific implementation, the photoelectric sensor 9 may, but is not limited to, adopt a slot-type photoelectric sensor 9 with model number EE-SX674. The photoelectric sensor 9 has an infrared emitting element and a receiving element placed opposite each other inside. When the object being measured (such as baffle 10) enters this "slot", it will block the infrared light, and the sensor will output a switch signal (ON or OFF).

[0031] See appendix Figure 5 As shown, a connecting plate 11 is provided below the moving plate 4, and a sleeve 52 is located between the moving plate 4 and the connecting plate 11. A housing 18 is provided between the moving plate 4 and the connecting plate 11. The connecting plate 11 is sleeved on the tightening head 5, and a baffle 10 is fixed on the connecting plate 11. The baffle 10 can move left and right synchronously with the moving plate 4, and works with the photoelectric sensor 9 to realize the functions of position detection and stopping at any time.

[0032] See appendix Figure 1 and attached Figure 2As shown, a vertical guide rail 12 is provided on the mounting base 1, and the electric screwdriver 2 is mounted on the vertical guide rail 12 via a mounting seat 13. A vertical cylinder 14 is provided on the mounting base 1, and the extended end of the vertical cylinder 14 is connected to the mounting seat 13 and drives it to move up and down. In a specific embodiment, the vertical cylinder 14 can be, but is not limited to, a mini cylinder of model MAJ16X80-30S. The extended end of the vertical cylinder 14 is connected to a T-shaped connecting post 15, the lower end of which passes through the mounting seat 13 and is fixed with a bolt. A compression spring 16 is sleeved on the connecting post 15, and the compression spring 16 is located above the mounting seat 13. The lower end of the connecting post 15 moves up and down through the mounting seat 13, and the compression spring 16 can buffer the vertical cylinder 14 when it moves.

[0033] Working principle: 1. Initial preparation stage: Install the commonly used screwdriver bits 6 into the tightening sleeves 54 at the lower end of the multiple tightening heads 5 on the moving plate 4, and fix the screwdriver bits 6 through the interface of the tightening sleeves 54; the electric screwdriver 2 is initially in the upper position, and the moving plate 4 drives all the tightening heads 5 to the standby position.

[0034] 2. Selection and Positioning of Bit 6: After the product is conveyed to the workstation below the electric screwdriver 2, the control system issues a command according to the screw type. The horizontal cylinder 8 drives the moving plate 4 to move along the horizontal guide rail 7, so that the tightening head 5 corresponding to the target bit 6 faces directly below the electric screwdriver 2. During the movement, the baffle 10 fixed on the connecting plate 11 moves synchronously with the moving plate 4. When the baffle 10 enters the slot of the target photoelectric sensor 9 and blocks the infrared light, the photoelectric sensor 9 outputs a switch signal, and the control system brakes the horizontal cylinder 8, so that the moving plate 4 stops precisely, ensuring that the axis of the tightening head 5 coincides with the rotation axis of the electric screwdriver 2.

[0035] 3. Pressing down and connecting the electric screwdriver 2: The vertical cylinder 14 is activated, pushing the mounting base 13 to move down along the vertical guide rail 12, which in turn drives the electric screwdriver 2 to descend. The lower end of the electric screwdriver 2 abuts against the rotating shaft 51 at the upper end of the tightening head 5. The downward pressure compresses the reset spring 53 (located at the upper end of the rotating shaft 51) and the compression spring 16 on the connecting column 15 (located above the mounting base 13), realizing flexible buffering and axial force transmission, ensuring that the output shaft of the electric screwdriver 2 is tightly coupled with the rotating shaft 51.

[0036] 4. Tightening operation: When the electric screwdriver 2 is started, the torque is transmitted to the lower tightening sleeve 54 and the screwdriver bit 6 through the rotating shaft 51 to tighten the screws of the product. The sleeve 52 supports the rotation of the rotating shaft 51 through the bearing, and at the same time remains stationary by being fixed between the moving plate 4 and the connecting plate 11 to avoid the back torque affecting the positioning accuracy.

[0037] 5. Reset and Head Changing Cycle: After tightening, the electric screwdriver 2 stops and reverses slightly to release torque. The vertical cylinder 14 retracts, causing the electric screwdriver 2 to rise and separate from the tightening head 5. The horizontal cylinder 8 drives the motion plate 4 to move according to the next screw model, so that the corresponding screwdriver head 6 moves below the electric screwdriver 2. The above process is repeated until all screws are assembled. The entire module can be raised and lowered by the transfer mechanism to adapt to different working height requirements.

[0038] Example 2: This embodiment is a further improvement based on Embodiment 1. Specifically, the inner wall of the tightening sleeve 54 is provided with several locking protrusions. These protrusions can be spring-loaded steel balls, and springs can be configured inside the steel balls. The locking protrusion (such as spring-loaded steel balls) structure inside the tightening sleeve 54 enhances the clamping force of the screwdriver bit 6, preventing it from falling off during operation. A hexagonal interface is provided at the lower end of the tightening sleeve 54. Where conditions permit, the hexagonal interface can be used to tighten bolts without connecting the screwdriver bit 6. This hexagonal interface design expands the module's functionality, allowing direct use for tightening bolts and improving the equipment's versatility.

[0039] This utility model's automatic head-changing, arranged screwdriver module boasts significant advantages in efficiency, compactness, precise positioning, and high flexibility. Through a single electric screwdriver coupled with a horizontally moving multi-tightening head layout, it enables rapid switching between multiple screwdriver bit models, greatly improving the efficiency of assembling mixed-size screws. The photoelectric sensor and baffle linkage positioning ensure precise docking between the screwdriver bit and the electric screwdriver, while its spring-buffered design guarantees the reliability of the switching process. The overall structure cleverly avoids the bulkiness and high cost of multi-electric screwdriver solutions and can be integrated with a transfer mechanism for overall lifting, perfectly adapting to the flexible production needs of modern production lines.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An automatic head-changing, arranged gun-hanging module, characterized in that: The device includes a vertically mounted mounting base plate (1), on which an electric screwdriver (2) is mounted that can move up and down. A horizontal mounting frame (3) is mounted at the lower end of the mounting base plate (1). A moving plate (4) that can move left and right is mounted on the horizontal mounting frame (3). Several tightening heads (5) are arranged along the direction of movement on the moving plate (4). The upper end of the tightening head (5) is configured to be connected to the lower end of the electric screwdriver (2). The lower end of the tightening head (5) is configured to be connected to different types of screwdriver bits (6). The position of the tightening head (5) corresponds to the position of the electric screwdriver (2).

2. The automatic head-changing, arranged gun-hanging module according to claim 1, characterized in that: The tightening head (5) includes a rotating shaft (51), on which a sleeve (52) is provided. A bearing is provided between the sleeve (52) and the rotating shaft (51). A return spring (53) is sleeved on the upper end of the rotating shaft (51), and the bearing is located below the return spring (53). The sleeve (52) is fixed to the lower end of the moving plate (4), and a tightening sleeve (54) that can be connected to the bit (6) is fixed to the lower end of the rotating shaft (51).

3. The automatic head-changing, arranged gun-hanging module according to claim 1, characterized in that: The moving plate (4) is set on a horizontal guide rail (7), which is fixed on the horizontal mounting frame (3); the moving plate (4) is connected to a horizontal cylinder (8) for transmission, which is mounted on the horizontal mounting frame (3).

4. The automatic head-changing, arranged gun-hanging module according to claim 2, characterized in that: The lower end face of the horizontal mounting bracket (3) is provided with a plurality of photoelectric sensors (9) arranged along the moving direction of the moving plate (4), and the tightening head (5) is provided with a baffle (10) corresponding to the photoelectric sensor (9).

5. The automatic head-changing, arranged gun-hanging module according to claim 4, characterized in that: A connecting plate (11) is provided below the moving plate (4), the sleeve (52) is located between the moving plate (4) and the connecting plate (11), the connecting plate (11) is sleeved on the tightening head (5), and the baffle (10) is fixed on the connecting plate (11).

6. The automatic head-changing, arranged gun-hanging module according to claim 1, characterized in that: A vertical guide rail (12) is provided on the mounting base plate (1), and the electric screwdriver (2) is mounted on the vertical guide rail (12) through the mounting seat (13).

7. The automatic head-changing, arranged gun-hanging module according to claim 6, characterized in that: A vertical cylinder (14) is provided on the mounting base plate (1). The extended end of the vertical cylinder (14) is connected to the mounting seat (13) and drives it to move up and down.

8. The automatic head-changing, arranged gun-hanging module according to claim 7, characterized in that: The extended end of the vertical cylinder (14) is connected to a T-shaped connecting post (15). The lower end of the connecting post (15) passes through the mounting base (13). The lower end of the connecting post (15) is fixed with a bolt. A compression spring (16) is sleeved on the connecting post (15). The compression spring (16) is located above the mounting base (13).

9. An automatic head-changing, arranged gun-hanging module according to claim 2, characterized in that: The inner wall of the tightening sleeve (54) is provided with several locking protrusions.

10. An automatic head-changing, arranged gun-hanging module according to claim 2, characterized in that: The lower end of the tightening sleeve (54) has a hexagonal interface.

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