Rotary locking assembly device

Abstract

The utility model belongs to the technical field of assembling machinery, and particularly relates to a rotary locking and assembling device which comprises a mounting seat, a motor seat, a rotary driving motor, a rotating shaft, a lifting shaft, a lifting driving motor, a cam, a lifting seat and a height detection assembly, the motor base is arranged on one side of the mounting plate, the rotating driving motor is arranged on the motor base, and the rotating shaft is connected with a spindle of the rotating driving motor; a central hole is formed in the rotating shaft; the rotating shaft is provided with a limiting piece, the upper end of the lifting shaft slidably extends into the center hole, the lifting shaft is provided with a limiting surface matched with the limiting piece, the bottom end of the lifting shaft is provided with an adsorption hole, and the bottom end of the adsorption hole is provided with a positioning part; the lifting seat sleeves the lifting shaft, is in sliding connection with the mounting plate and is provided with an air pipe, and the air pipe is communicated with the adsorption hole; the lifting driving motor is arranged on one side of the mounting plate, the cam is arranged on the lifting driving motor, the outer edge of the cam is provided with a track surface, the lifting seat is provided with a roller, and the roller is supported on the track surface only by gravity; the height detection assembly is arranged on the mounting plate.

Description

Technical Field

[0001] This utility model belongs to the field of assembly machinery technology, and in particular relates to a rotary locking assembly device. Background Technology

[0002] In automated production lines, robotic arms are typically used to assemble parts, such as using industrial robots to tighten screws, thereby replacing manual labor and improving production efficiency and quality.

[0003] For example, Chinese invention patent document CN115502710B discloses an automatic screw fastening device and an automatic assembly system, including: a moving module, an installation platform coupled to the moving module, and multiple screw fastening modules disposed on the installation platform. The moving module is used to drive the installation platform to move along a first direction. The screw fastening module includes: a rotating head, a rotating drive component, and a telescopic spring-loaded device. One end of the rotating head is used to be coupled to a screw. The output end of the rotating drive component is coupled to the other end of the rotating head. The fixed end of the telescopic spring-loaded device is installed on the installation platform, and the telescopic end of the telescopic spring-loaded device is coupled to the rotating drive component. The telescopic spring-loaded device is used to drive the rotating drive component to move along the first direction.

[0004] The installation platform includes an installation section and a clamping section; the installation section is coupled to the mobile module, and the fixed end of the telescopic rebound device is fixedly connected; the clamping section is movably connected to the installation section, and the clamping section is used to clamp the first assembly.

[0005] The clamping part includes a gripper and a first translation drive device; the fixed end of the first translation drive device is mounted on the mounting part, and the telescopic end of the first translation drive device is coupled to the gripper for driving the gripper to move along a second direction so that the gripper can clamp and release under the drive of the first translation drive device; the second direction is perpendicular to the first direction.

[0006] The mobile module includes a second translation drive device and a power device; the fixed end of the second translation drive device is connected to the power device, and the telescopic end of the second translation drive device is coupled to the mounting platform; the second translation drive device is used to drive the mounting platform to move along a first direction; the power device is used to cooperate with the automatic assembly system to move along a second direction and a third direction, the third direction being perpendicular to the first direction and the second direction, respectively.

[0007] By setting multiple screw-locking modules, each with a rotating head coupled to the output end of a rotary drive, and by setting the same torque for the multiple rotary drives of the multiple screw-locking modules, the same torque is applied to the multiple screws, ensuring uniform force distribution on the screws. Furthermore, by incorporating a telescopic spring-loaded device connected to the rotary drive, when the mounting platform moves the rotating head close to the screw tip, if the first assembly is tilted relative to other assemblies, the telescopic spring-loaded device provides the rotating head with a flexible space for vertical movement. This allows the rotating head to adaptively extend and retract, ensuring proper engagement between the rotating head and the screw, thus achieving uniform force distribution on the multiple screws during the locking process.

[0008] In the aforementioned patent documents, the technical solution relies on a rotating head to pick up the screw, a rotating drive mechanism to drive the screw to rotate, and a second translation drive device to drive the rotating head to descend, thereby achieving screw locking. However, using the second translation drive device to drive the lifting and lowering makes it difficult to control the height of the screw, and applying pressure to the screw using the second translation drive device can result in excessive driving force, causing damage to parts, especially light and brittle products. Utility Model Content

[0009] The purpose of this invention is to provide a rotary locking assembly device to solve the problems of existing locking machines being unable to control the assembly height and easily causing damage to light and brittle parts.

[0010] To achieve the above objectives, this utility model provides a rotary locking assembly device for rotating parts assembly, including a mounting base and at least one set of rotary assembly mechanisms disposed on one side of the mounting base; the rotary assembly mechanism includes a motor base, a rotary drive motor, a rotary shaft, a lifting shaft, a lifting drive motor, a cam, a lifting seat, and a height detection component; a mounting plate is provided on one side of the mounting base, the motor base is disposed on one side of the mounting plate, the rotary drive motor is disposed on the motor base, the rotary shaft is connected to the main shaft of the rotary drive motor and rotatably connected to the motor base; the rotary shaft has a central hole that extends through the bottom end of the rotary shaft; the central hole has a first limiting surface or the rotary shaft has a limiting element; the upper end of the lifting shaft slides out... The lifting shaft is provided with a second limiting surface, which cooperates with the first limiting surface or the limiting member, so that the lifting shaft can only move up and down relative to the rotating shaft. The bottom end of the lifting shaft is provided with an adsorption hole, and the bottom end of the adsorption hole is provided with a positioning part. The lifting seat is sleeved on the lifting shaft and slidably connected to the mounting plate. The lifting seat is provided with an air pipe, which communicates with the adsorption hole and is used to connect a negative pressure device. The lifting drive motor is located on one side of the mounting plate. The cam is located on the lifting drive motor. The outer edge of the cam is provided with a track surface. The lifting seat is provided with rollers, which are supported only by gravity on the track surface. The height detection component is located on the mounting plate and is used to detect the height position of the lifting seat.

[0011] Furthermore, the height detection component includes a connecting block, a grating reading head, and a grating ruler; the grating ruler is located on one side of the lifting seat, the connecting block is located on one side of the mounting plate, and the grating reading head is located on the connecting block for reading the value of the grating ruler.

[0012] Furthermore, the mounting plate has a support block on its bottom side, and the support block has a reference surface on its bottom side, which is used to support the reference boss on the worktable.

[0013] Furthermore, the outer edge of the cam is provided with a groove to prevent the roller from being obstructed.

[0014] Furthermore, the bottom side of the rotating shaft is provided with a mounting groove, the limiting member includes two rollers disposed in the mounting groove, a limiting gap is formed between the two rollers, the upper end of the lifting shaft is provided with a flat part passing through the limiting gap; the side of the rotating shaft is also provided with a through waist-shaped hole.

[0015] Furthermore, the lifting shaft is provided with a transition position, the lifting seat is provided with a connecting hole, the transition position is rotatably connected to the connecting hole, the air pipe is connected to the connecting hole, the transition position is provided with multiple air holes, and the air holes are used to connect the adsorption hole and the air pipe.

[0016] Furthermore, the adapter is rotatably fitted with a copper sleeve, which is fixedly connected to the connecting hole. The outer side of the copper sleeve is provided with a through hole, which communicates with the air pipe.

[0017] Furthermore, the rotating assembly mechanism consists of two sets, which are symmetrically arranged on one side of the mounting plate.

[0018] The rotary locking assembly device provided in this utility model embodiment has at least the following technical effects:

[0019] During the locking assembly process, the locking attachment is adsorbed into the suction hole. A lifting drive motor drives the cam to rotate. As the roller gradually contacts the lowest point of the cam, the lifting seat descends due to gravity, and the lifting shaft and the locking attachment at the bottom of the lifting shaft also descend together. This allows the locking attachment to contact another assembly component. With the continued rotation of the cam, the roller disengages from the guide rail surface, ensuring the assembly component is only subjected to the weight of the lifting seat, lifting shaft, and locking attachment, and the force is always uniform, preventing damage from excessive stress. A rotary drive motor drives the rotary shaft to rotate. Through the cooperation of the first limiting surface or limiting component of the rotary shaft with the second limiting surface of the lifting shaft, the lifting shaft rotates together. With the cooperation of the positioning part and the locking attachment, the locking attachment rotates together, connecting the locking attachment to the assembly component. Simultaneously, the locking attachment descends. The height detection component detects the descent height of the lifting seat and thus the descent height of the locking attachment, allowing for accurate control of the locking attachment's assembly height and improving assembly precision and quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the material handling and assembly head assembly provided in an embodiment of the present utility model.

[0022] Figure 2 This is a structural diagram of the bottom side of the rotary locking assembly device provided in an embodiment of the present invention.

[0023] Figure 3 A structural diagram of the rotary assembly mechanism of the rotary locking assembly device provided in this embodiment of the utility model.

[0024] Figure 4A cross-sectional view of the rotary assembly mechanism of the rotary locking assembly device provided in an embodiment of this utility model.

[0025] Figure 5 A structural diagram of the lifting shaft of the rotary locking assembly device provided in this embodiment of the utility model. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of the rotary locking assembly device of this utility model, please refer to... Figures 1 to 5The rotary locking assembly device of this embodiment is used to be installed on a moving mechanism to realize the automatic assembly of workpieces. Specifically, the rotary locking assembly device of this embodiment includes a mounting base 100 and at least one set of rotary assembly mechanisms disposed on one side of the mounting base 100. The rotary assembly mechanism includes a motor base 200, a rotary drive motor 300, a rotary shaft 400, a lifting shaft 500, a lifting drive motor 600, a cam 700, a lifting seat 800, and a height detection component 900. A mounting plate 110 is provided on one side of the mounting base 100, the motor base 200 is disposed on one side of the mounting plate 110, the rotary drive motor 300 is disposed on the motor base 200, and the rotary shaft 400 is connected to the main shaft of the rotary drive motor 300 and rotatably connected to the motor base 200. The rotary shaft 400 has a central hole that extends through the bottom end of the rotary shaft 400; the central hole has a first limiting surface or the rotary shaft has a limiting member 410. The upper end of the lifting shaft 500 slides into the central hole. The lifting shaft 500 is provided with a second limiting surface, which cooperates with the first limiting surface or the limiting member 410, so that the lifting shaft 500 can only move up and down relative to the rotating shaft 400. Specifically, when the rotating shaft 400 rotates, it can drive the lifting shaft 500 to rotate together. The bottom end of the lifting shaft 500 is provided with an adsorption hole 501, and the bottom end of the adsorption hole 501 is provided with a positioning part 502; the lock accessory to be assembled can be positioned in the adsorption hole 501, and the positioning part 502 limits the lock accessory, so that the lock accessory can rotate with the lifting shaft 500. The lifting seat 800 is sleeved on the lifting shaft 500 and slidably connected to the mounting plate 110. The lifting seat 800 is provided with an air pipe 810, which communicates with the adsorption hole 501 and is used to connect a negative pressure device. Therefore, a negative pressure device can be used to generate negative pressure in the adsorption hole 501. The lifting drive motor 600 is located on one side of the mounting plate 110, and the cam 700 is located on the lifting drive motor 600. The outer edge of the cam 700 is provided with a track surface 701. The lifting seat 800 is provided with rollers 820, which are supported on the track surface 701 by gravity alone. The height detection component 900 is located on the mounting plate 100 and is used to detect the height position of the lifting seat 800.

[0031] Furthermore, referring to Figure 1 and Figure 2 The rotating assembly mechanism consists of two sets, symmetrically arranged on one side of the mounting plate 110. This improves assembly efficiency.

[0032] Specifically, in the rotary locking assembly device of the above embodiment, during the locking assembly process, the locking attachment is adsorbed in the adsorption hole 501. The lifting drive motor 600 drives the cam 700 to rotate. As the roller 820 gradually contacts the lowest point of the cam 700 from the highest point, the lifting seat 800 drops due to gravity. The lifting shaft 500 and the locking attachment at the bottom of the lifting shaft 500 also drop together, allowing the locking attachment to contact another assembly. As the cam 700 continues to rotate, the roller disengages from the track surface 701, allowing the assembly to support the locking attachment. The assembly is only subjected to the gravity of the lifting seat 800, the lifting shaft 500, and the locking attachment, and the force is always uniform, avoiding the problem of excessive force causing damage to the assembly. A rotary drive motor drives a rotary shaft to rotate. The first limiting surface of the rotary shaft 400 or the limiting member 410 cooperates with the second limiting surface of the lifting shaft 500, causing the lifting shaft 500 to rotate together. With the cooperation of the positioning part 502 and the lock accessory, the lock accessory is also rotated, thereby connecting the lock accessory to the assembly. As the lock accessory rotates, it also descends. The height detection component 900 detects the descent height of the lifting seat 800, thereby detecting the descent height of the lock accessory. This allows for accurate control of the assembly height of the lock accessory, improving the precision and quality of the assembly.

[0033] Furthermore, referring to Figure 3 The height detection component 900 includes a connecting block 901, a grating reading head 902, and a grating ruler 903. The grating ruler 903 is located on one side of the lifting platform 800, the connecting block 901 is located on one side of the mounting plate 110, and the grating reading head 902 is located on the connecting block 901 for reading the value of the grating ruler 903. Specifically, when the lifting platform 800 is raised or lowered, the grating reading head 902 is relatively displaced relative to the grating ruler 903 and can read the scale in real time, thereby controlling the raising and lowering height of the lifting platform 800.

[0034] Furthermore, refer to Figure 2 The mounting plate 110 has a support block 120 on its bottom side, and a reference surface 121 on its bottom side. The reference surface 121 is used to support the reference boss on the worktable. Specifically, in this embodiment, when assembling the lock accessory with another part, the reference surface 121 first supports it on the reference of the worktable to ensure the assembly reference, and then the rotary locking assembly device completes the assembly, further improving the assembly accuracy.

[0035] Furthermore, refer to Figure 1 and Figure 2 The outer edge of the cam 700 is also provided with a groove 702 to prevent the roller 820 from being pulled. Specifically, when the locking attachment adsorbed in the adsorption hole 501 is connected to the assembly, as the cam 700 continues to rotate, the roller 820 will be located above the groove 702, preventing the roller 820 from contacting the track surface 701 and causing interference in the assembly.

[0036] Furthermore, refer to Figure 3 The bottom side of the rotating shaft 400 is provided with a mounting groove 401, and the limiting member 410 includes two rollers disposed in the mounting groove 401, forming a limiting gap between the two rollers. The upper end of the lifting shaft 500 is provided with a flat part 501 passing through the limiting gap; the side of the rotating shaft 400 is also provided with a through-hole 402. Therefore, the friction of the lifting shaft 500 during lifting can be reduced, making the downward movement of the lifting shaft 500 under the action of gravity smoother.

[0037] Furthermore, refer to Figure 4 and Figure 5 The lifting shaft 500 is provided with a transition position 503, and the lifting seat 800 is provided with a connecting hole 801. The transition position 503 is rotatably connected to the connecting hole 801, and the air pipe 810 is connected to the connecting hole 801. The transition position 503 is provided with multiple air holes 504, which are used to connect the adsorption hole 501 and the air pipe 810. This ensures that the adsorption hole 501 is connected to the negative pressure device when rotating.

[0038] Furthermore, refer to Figure 4 and Figure 5 A copper sleeve 510 is rotatably fitted onto the adapter 503. The copper sleeve 510 is fixedly connected to the connecting hole 801. A through hole 511 is provided on the outer side of the copper sleeve 510, which communicates with the air pipe 810. In this embodiment, the wear of the lifting shaft 500 during rotation can be reduced, and the airtightness of the connection between the adsorption hole 501 and the air pipe 810 can be ensured.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary locking assembly device for rotary assembly of parts, characterized in that, The system includes a mounting base and at least one set of rotating assembly mechanisms disposed on one side of the mounting base. The rotating assembly mechanism includes a motor base, a rotary drive motor, a rotating shaft, a lifting shaft, a lifting drive motor, a cam, a lifting seat, and a height detection component. A mounting plate is provided on one side of the mounting base, the motor base is disposed on one side of the mounting plate, the rotary drive motor is disposed on the motor base, and the rotating shaft is connected to the main shaft of the rotary drive motor and rotatably connected to the motor base. The rotating shaft has a central hole that extends through the bottom end of the rotating shaft. The central hole has a first limiting surface, or the rotating shaft has a limiting element. The upper end of the lifting shaft slides into the central hole, and the lifting shaft has a second limiting surface. The second limiting surface cooperates with the first limiting surface or the limiting member, so that the lifting shaft can only move up and down relative to the rotating shaft; the bottom end of the lifting shaft is provided with an adsorption hole, and the bottom end of the adsorption hole is provided with a positioning part; the lifting seat is sleeved on the lifting shaft and slidably connected to the mounting plate; the lifting seat is provided with an air pipe, which communicates with the adsorption hole and is used to connect a negative pressure device; the lifting drive motor is located on one side of the mounting plate, the cam is located on the lifting drive motor, the outer edge of the cam is provided with a track surface, the lifting seat is provided with rollers, and the rollers are supported only by gravity on the track surface; the height detection component is located on the mounting plate and is used to detect the height position of the lifting seat.

2. The rotary locking assembly device according to claim 1, characterized in that: The height detection component includes a connecting block, a grating reading head, and a grating ruler; the grating ruler is located on one side of the lifting seat, the connecting block is located on one side of the mounting plate, and the grating reading head is located on the connecting block for reading the value of the grating ruler.

3. The rotary locking assembly device according to claim 1, characterized in that: The mounting plate has a support block on its bottom side, and the support block has a reference surface on its bottom side. The reference surface is used to support the reference boss on the worktable.

4. The rotary locking assembly device according to any one of claims 1 to 3, characterized in that: The outer edge of the cam is also provided with a groove to prevent the roller from being obstructed.

5. The rotary locking assembly device according to any one of claims 1 to 3, characterized in that: The bottom side of the rotating shaft is provided with a mounting groove, and the limiting member includes two rollers disposed in the mounting groove, forming a limiting gap between the two rollers. The upper end of the lifting shaft is provided with a flat part passing through the limiting gap; the side of the rotating shaft is also provided with a through waist-shaped hole.

6. The rotary locking assembly device according to claim 1, characterized in that: The lifting shaft is provided with a transition position, the lifting seat is provided with a connecting hole, the transition position is rotatably connected to the connecting hole, the air pipe is connected to the connecting hole, the transition position is provided with multiple air holes, and the air holes are used to connect the adsorption hole and the air pipe.

7. The rotary locking assembly device according to claim 6, characterized in that: The adapter is rotatably fitted with a copper sleeve, which is fixedly connected to the connecting hole. The outer side of the copper sleeve has a through hole that communicates with the air pipe.

8. The rotary locking assembly device according to claim 1, characterized in that: The rotating assembly mechanism consists of two sets, which are symmetrically arranged on one side of the mounting plate.

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