A center wheel flat key press fitting device

Abstract

This application relates to a center wheel key pressing device, comprising: a feeding mechanism; a pressing mechanism; and a guide limiting structure disposed on the pressing mechanism; wherein, the guide limiting structure has a limiting groove extending along the pressing direction, the limiting groove being adapted to the key to provide lateral limiting for the key; the feeding mechanism is used to convey the key to the limiting groove, positioning the key along the extending direction of the limiting groove; the pressing mechanism is used to move along the pressing direction, pressing the key into the keyway of the center wheel while the key is limited by the limiting groove. After the feeding mechanism conveys the key to the limiting groove, the key is positioned along the extending direction of the limiting groove, thus remaining under control throughout the pressing process; compared to the traditional method of supplying the key by pushing or free-falling, this embodiment can effectively limit the key before pressing, preventing the key from shifting, tilting, or misaligning during the pressing process.

Description

Technical Field

[0001] This application relates to the field of mechanical assembly equipment technology, and in particular to a center wheel flat key press-fitting device. Background Technology

[0002] In the manufacturing process of motors and related transmission components, the center wheel typically needs to be connected to the shaft or other components via a key. The assembly quality of the key directly affects the transmission stability and reliability, thus requiring high precision and consistency in assembly. Currently, key installation largely relies on manual operation or semi-automatic equipment, usually requiring manual alignment of the key with the keyway of the center wheel before press-fitting. This method is not only labor-intensive but also susceptible to the operator's experience and skill level, leading to problems such as key misalignment, tilting, or incomplete press-fitting during the process, thereby affecting assembly quality.

[0003] Furthermore, while some automated solutions can achieve automatic feeding and pressing of flat keys, the lack of effective attitude control before the flat keys enter the pressing position makes them prone to misalignment or stacking during conveying or unloading, leading to pressing failure or jamming. Additionally, existing equipment often requires significant manual adjustment when switching between different sized center wheels, resulting in poor adaptability and impacting production efficiency.

[0004] Therefore, how to improve the positioning stability of the flat key before pressing while ensuring the degree of automation, and to achieve precise control of the pressing process, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] One object of this application is to provide a center wheel flat key press-fitting device, which at least solves the above-mentioned problems.

[0006] To achieve the above objectives, some embodiments of this application provide a center wheel flat key press-fitting device, comprising:

[0007] Feeding mechanism;

[0008] Press-fitting mechanism;

[0009] A guide and limit structure is installed on the pressing mechanism;

[0010] The guide limiting structure is provided with a limiting groove extending along the pressing direction. The limiting groove is adapted to the flat key to form a lateral limiting for the flat key.

[0011] The feeding mechanism is used to convey the flat key to the limiting groove, so that the flat key is positioned along the extension direction of the limiting groove;

[0012] The pressing mechanism is used to move along the pressing direction and, under the condition that the limiting groove limits the flat key, press the flat key into the keyway of the center wheel.

[0013] Compared with related technologies, the solution provided in this application embodiment, by setting a guide limiting structure on the pressing mechanism and forming a limiting groove extending along the pressing direction on the guide limiting structure, the flat key is constrained in a stable position and posture before pressing; after the feeding mechanism conveys the flat key into the limiting groove, the flat key is positioned along the extension direction of the limiting groove, thus always being in a controlled state during the pressing process; compared with the traditional method of supplying flat keys by pushing or free dropping, this embodiment can effectively limit the flat key before pressing, avoiding the flat key from shifting, tilting or misaligning during the pressing process.

[0014] Furthermore, under the condition that the limiting groove is continuously limited, the pressing mechanism drives the flat key to press into the keyway of the center wheel, so that the pressing process is synchronized with the guiding constraint, thereby ensuring the alignment accuracy between the flat key and the keyway and improving the consistency and stability of the pressing. Through the above structural cooperation, problems such as jamming, damage or incomplete pressing caused by inaccurate positioning can be effectively reduced, and the assembly yield can be improved.

[0015] Meanwhile, this embodiment integrates the feeding, positioning, and pressing processes, creating a continuous workflow from conveying to pressing of the flat key. This reduces uncertainties in intermediate steps and improves overall automation and production efficiency. Overall, this embodiment achieves stable control of the flat key pressing process while maintaining a relatively simple structure, demonstrating good engineering applicability.

[0016] Therefore, this embodiment improves pressing accuracy while also taking into account structural reliability and operational continuity, and has good potential for widespread application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a partial structural schematic diagram of the center wheel flat key press-fitting device provided in the embodiments of this disclosure;

[0019] Figure 2 This is a schematic diagram of the lower structure of the feeding mechanism and pressing mechanism provided in the embodiments of this disclosure;

[0020] Figure 3 This is a schematic diagram of the feeding mechanism provided in the embodiments of this disclosure;

[0021] Figure 4 This is a partial structural schematic diagram of the feeding mechanism provided in an embodiment of this disclosure;

[0022] Figure 5 This is a partial cross-sectional schematic diagram of the feeding mechanism provided in an embodiment of this disclosure;

[0023] Figure 6 This is a schematic diagram of the connection structure between the feeding mechanism and the vibrating hopper provided in the embodiments of this disclosure;

[0024] Figure 7 This is a schematic diagram of the upper servo press and pressing head of the pressing mechanism provided in this embodiment of the present disclosure;

[0025] Figure 8 This is a schematic diagram of the guiding lifting and limiting structure of the pressing mechanism provided in the embodiments of this disclosure;

[0026] Figure 9 This is a structural schematic diagram of the center wheel flat key pressing device provided in an embodiment of this disclosure from another perspective;

[0027] Figure 10 This is a structural schematic diagram of the center wheel flat key pressing device provided in an embodiment of this disclosure from another perspective;

[0028] Figure 11 This is a schematic diagram of the clamping fixture structure provided in the embodiments of this disclosure;

[0029] Figure 12 This is a schematic diagram of the adhesive application mechanism provided in an embodiment of this disclosure;

[0030] Figure 13 This is a schematic diagram of the structure of the visual inspection device provided in the embodiments of this disclosure;

[0031] Figure 14 This is a schematic diagram of the overall assembly line layout of the device provided in the embodiments of this disclosure;

[0032] Figure 15 This is a schematic diagram of the gripping mechanism structure provided in an embodiment of this disclosure;

[0033] Figure 16 This is a schematic diagram of the storage fixture and pallet structure provided in an embodiment of this disclosure;

[0034] Figure 17 This is a schematic diagram of the assembly of the center wheel, flat key, and keyway provided in an embodiment of this disclosure.

[0035] Figure label:

[0036] 1: Feeding mechanism; 11: Receiving part; 111: Mounting frame; 112: Receiving plate; 1121: Receiving groove; 113: Receiving cavity; 114: Guide block; 1141: First material channel; 115: Switching cylinder; 116: Second material channel; 117: Guide column; 12: Adapter plate; 121: Discharge chute; 13: Sliding block; 14: Push-out cylinder; 15: Drive motor; 16: Lead screw; 17: Base plate; 171: Stop; 18: Support plate; 191: First slide rail; 192: Second slide rail; 20: Vibrating hopper; 201: Material guide channel;

[0037] 2: Pressing mechanism; 21: Servo press; 22: Pressing head; 23: Pressing frame; 231: Top plate; 232: Side plate; 2321: Guide rail; 2322: Hollowed-out part; 24: Guide lifting cylinder; 25: Connector; 26: Rotary table; 27: Track fixture; 281: Rotary drive unit; 282: Linear drive unit;

[0038] 3: Guide and limiting structure; 31: Limiting groove;

[0039] 4: Glue application mechanism; 41: Glue application head; 42: Glue application lifting module; 43: Glue application moving module;

[0040] 5: Visual inspection device; 51: Support frame; 52: Camera assembly; 53: Light source; 54: Camera lifting module;

[0041] 6: Clamping fixture; 61: Clamping bracket; 62: Clamping assembly; 621: Clamping cylinder; 622: Gripper; 63: Pressure detection unit;

[0042] 7: Storage fixture; 71: Storage rack; 72: Clamping mechanism;

[0043] 8: Gripping mechanism; 81: Robotic arm; 82: Clamping assembly;

[0044] 9: Center wheel; 91: Keyway;

[0045] 10: Flat key;

[0046] 110: Tray. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0053] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0055] Combination Figures 1 to 17As shown in the embodiment of this disclosure, a center wheel key pressing device includes: a feeding mechanism 1, a pressing mechanism 2, and a guide limiting structure 3; the guide limiting structure 3 is disposed on the pressing mechanism 2; wherein, the guide limiting structure 3 is provided with a limiting groove 31 extending along the pressing direction, the limiting groove 31 being adapted to the flat key 10 to form a lateral limiting on the flat key 10; the feeding mechanism 1 is used to convey the flat key 10 to the limiting groove 31, so that the flat key 10 is positioned along the extending direction of the limiting groove 31; the pressing mechanism 2 is used to move along the pressing direction, and press the flat key 10 into the keyway 91 of the center wheel 9 while the limiting groove 31 limits the flat key 10. The pressing direction is the movement direction of the pressing head and is defined as the direction from the pressing head to the center wheel.

[0056] The center wheel flat key pressing device provided in this embodiment uses a guide limiting structure 3 on the pressing mechanism 2 and a limiting groove 31 extending along the pressing direction on the guide limiting structure 3, so that the flat key 10 is constrained in a stable position and posture before pressing. After the feeding mechanism 1 conveys the flat key 10 into the limiting groove 31, the flat key 10 is positioned along the extension direction of the limiting groove 31, so that it is always in a controlled state during the pressing process. Compared with the traditional method of supplying the flat key 10 by pushing or free dropping, this embodiment can effectively limit the flat key 10 before pressing, so as to avoid the flat key 10 from shifting, tilting or misaligning during the pressing process.

[0057] Furthermore, under the condition that the limiting groove 31 continuously limits the pressing mechanism 2, the flat key 10 is driven to press into the keyway 91 of the center wheel 9, so that the pressing process is synchronized with the guiding constraint, thereby ensuring the alignment accuracy between the flat key 10 and the keyway 91 and improving the consistency and stability of the pressing. Through the above structural cooperation, problems such as jamming, damage or incomplete pressing caused by inaccurate positioning can be effectively reduced, and the assembly yield can be improved.

[0058] Meanwhile, this embodiment integrates the feeding, positioning, and pressing processes, creating a continuous workflow for the flat key 10 from conveying to pressing completion. This reduces uncertainties in intermediate steps and improves overall automation and production efficiency. Overall, this embodiment achieves stable control over the pressing process of the flat key 10 while maintaining a relatively simple structure, demonstrating good engineering applicability.

[0059] Therefore, this embodiment improves pressing accuracy while also taking into account structural reliability and operational continuity, and has good potential for widespread application.

[0060] The limiting groove can be a U-shaped through groove or a rectangular through groove, the width of which matches the width of the flat key, and the groove depth is greater than a portion of the height of the flat key.

[0061] Optionally, the feeding mechanism 1 includes a receiving part 11, which includes a mounting frame 111 and a receiving plate 112 disposed on the mounting frame 111. The receiving plate 112 is provided with a receiving groove 1121, which is used to communicate with the material guide channel 201 of the vibrating hopper 20 to receive the flat key 10.

[0062] By providing a receiving part 11 in the feeding mechanism 1 and connecting the receiving groove 1121 on the receiving plate 112 with the guiding channel 201 of the vibrating hopper 20, the flat key 10 can be stably transferred from the vibrating hopper 20 into the receiving groove 1121. This structure realizes the transformation of the flat key 10 from disordered feeding to orderly receiving, so that the flat key 10 is initially sorted before entering the subsequent feeding path, reducing stacking or jamming, and improving the continuity and stability of the feeding process.

[0063] Optionally, the mounting frame 111 and the receiving plate 112 surround to form a receiving cavity 113, and a guide block 114 is provided in the receiving cavity 113. The guide block 114 moves back and forth along its axis under the drive of the switching cylinder 115.

[0064] By forming a receiving cavity 113 between the mounting frame 111 and the receiving plate 112, and setting a reciprocating guide block 114 in the receiving cavity 113, the reciprocating motion of the guide block 114 driven by the switching cylinder 115 changes the conveying of the flat key 10 from continuous flow to controlled step-by-step transmission, thereby effectively avoiding the situation where multiple pieces enter the subsequent channel at the same time, and improving the feeding cycle control capability and reliability.

[0065] Optionally, the guide block 114 is provided with a through first material channel 1141, and the mounting frame 111 is provided with a through second material channel 116. The guide block 114 connects the first material channel 1141 with the receiving groove 1121 and connects the first material channel 1141 with the second material channel 116 at different positions to realize the segmented transfer of the flat key 10.

[0066] By setting a first material channel 1141 in the guide block 114 and a second material channel 116 in the mounting frame 111, and by utilizing the guide block 114 to achieve selective connectivity between the receiving groove 1121, the first material channel 1141, and the second material channel 116 at different positions, the flat key 10 forms a segmented transfer path during the feeding process. This structure divides the feeding process into multiple controlled stages, allowing the flat key 10 to transition to subsequent workstations step by step, avoiding the impact or misalignment problems caused by direct material drop, thereby improving feeding accuracy and reducing the risk of material jamming.

[0067] In some embodiments, the mounting frame 111 is provided with a guide post 117, and the two ends of the guide block 114 are respectively sleeved on the guide post 117 and slide along it.

[0068] By setting guide posts 117 within the mounting frame 111 and allowing the guide block 114 to slide along the guide posts 117, the movement trajectory of the guide block 114 is constrained, ensuring a stable motion posture during reciprocating movement. This structure reduces the possibility of the guide block 114 swaying or jamming, ensuring the docking accuracy between the first material channel 1141 and the receiving groove 1121 and the second material channel 116, thereby improving the reliability and repeatability of the overall feeding process.

[0069] Optionally, the feeding mechanism 1 also includes a transition plate 12, which is connected to the mounting frame 111. The transition plate 12 is provided with a through discharge groove 121. When the discharge groove 121 corresponds to the second material channel 116, the flat key 10 in the second material channel 116 falls into the discharge groove 121.

[0070] By setting up an adapter plate 12 connected to the mounting frame 111 and forming a discharge groove 121 on the adapter plate 12, the flat key 10 output from the second material channel 116 can be received in the discharge groove 121, thus forming a transition buffer before entering the guide limiting structure 3. This structure allows the flat key 10 to have a stable temporary storage state before entering the pressing-related structure, avoiding the problem of impact or unstable posture caused by the flat key 10 directly entering the limiting groove 31 from the upstream channel, which is beneficial to improving the connection stability between the feeding process and the pressing process.

[0071] Optionally, the feeding mechanism 1 further includes a sliding block 13, which is located at the bottom of the adapter plate 12 and can slide relative to the adapter plate 12; the sliding block 13 is slidably connected to the second slide rail 192 and is used to block the discharge trough 121 so that the flat key 10 is temporarily stored in the discharge trough 121.

[0072] By blocking the discharge chute 121 with the sliding block 13, the flat key 10 is temporarily stored in a confined space within the discharge chute 121, thereby enabling cycle control of the flat key 10 during the feeding process. This structure prevents the flat key 10 from falling prematurely before reaching the target position, effectively avoiding multiple parts entering the limiting groove 31 simultaneously or misalignment, making the feeding process more controllable and improving the consistency of subsequent pressing.

[0073] In some embodiments, the feeding mechanism 1 further includes an ejector cylinder 14, which drives the sliding block 13 to move in order to release the blockage of the discharge chute 121.

[0074] By setting the ejector cylinder 14 to drive the sliding block 13 to move, the blockage of the discharge chute 121 is released when needed, allowing the flat key 10 to be released into the limiting groove 31 at a predetermined time, thereby achieving active control over the timing of the flat key 10's feeding. This structure transforms the feeding process from passive feeding to active release, which helps to match the pressing cycle, reduces malfunctions caused by timing asynchrony, and improves the overall coordination and stability of the operation.

[0075] In some embodiments, the feeding mechanism 1 further includes a drive motor 15 and a lead screw 16 connected thereto, and the adapter plate 12 moves along the extension direction of the first slide rail 191 and the second slide rail 192 under the drive of the drive motor 15.

[0076] The drive motor 15 and lead screw 16 drive the adapter plate 12 to move along the first slide rail 191 and the second slide rail 192, enabling the discharge chute 121 to precisely switch positions between different workstations, thereby realizing the spatial transfer of the flat key 10 from the second material channel 116 to the guide and limiting structure 3. This structure gives the feeding path controllable displacement capability, enabling cross-position conveying while maintaining the stability of the flat key 10's posture, thus improving the flexibility and adaptability of the feeding system.

[0077] Optionally, when the adapter plate 12 moves to the preset position, the discharge chute 121 is connected to the limiting groove 31 of the guide limiting structure 3 so that the flat key 10 enters the limiting groove 31.

[0078] By aligning the adapter plate 12 with the limiting groove 31 of the guide limiting structure 3 at a preset position, the flat key 10 can enter the limiting groove 31 under aligned conditions, thus ensuring the spatial accuracy of the flat key 10 when entering the limiting groove 31. This structure avoids the flat key 10 from shifting or getting stuck when entering the limiting groove 31, allowing the flat key 10 to be stably positioned along the limiting groove 31, providing a reliable prerequisite for subsequent press-fitting.

[0079] Through the above-mentioned structural cooperation, the feeding mechanism 1 of this embodiment realizes a continuous process from receiving, segmented transfer, temporary storage control to fixed-point release, so that the flat key 10 is always in a controlled state before entering the guide limit structure 3, thereby significantly improving the coordination stability between feeding and pressing.

[0080] In some embodiments, the receiving groove 1121, the first material channel 1141, the second material channel 116, and the discharge groove 121 are all provided in multiple ways to accommodate flat keys 10 of different specifications.

[0081] In some embodiments, when multiple receiving slots 1121 are provided, each receiving slot 1121 corresponds to a material guiding channel 201, and each material guiding channel 201 is connected to a vibrating hopper 20. Different vibrating hoppers 20 respectively contain different types of flat keys 10, so as to realize the sorting and supply of flat keys 10 of different specifications.

[0082] The vibrating hopper 20 is internally configured with a spiral feeding structure. The flat key 10 is sequentially conveyed to the guide channel 201 along the spiral path inside the vibrating hopper 20. The guide channel 201 is configured as a single-piece passage structure so that the flat key 10 enters the receiving groove 1121 one by one.

[0083] In some embodiments, a transition guide surface is provided at the junction of the first feed channel 1141 and the second feed channel 116.

[0084] The transition guide surface can be constructed as a slope, arc, or chamfer to create a smooth transition path between the first material channel 1141 and the second material channel 116. When the flat key 10 is transferred from the first material channel 1141 to the second material channel 116, the transition guide surface can guide the movement direction of the flat key 10, allowing it to gradually transition into the second material channel 116, avoiding jamming, collision, or sudden changes in posture at the junction. This structural design reduces the impact on the flat key 10 during the transfer process, improves the smoothness and stability of the feeding process, reduces downtime or abnormalities caused by jamming, and improves the continuity and reliability of the overall operation.

[0085] In some embodiments, the feeding mechanism 1 further includes a base plate 17 and a support plate 18. The drive motor 15, the first slide rail 191 and the lead screw are all disposed on the base plate 17, and the support plate 18 is used to support the bottom of the mounting frame 111.

[0086] By centrally mounting the driving components on the base plate 17 and supporting the receiving part 11 with the support plate 18, the feeding mechanism 1 can form a relatively independent and structurally stable installation unit, which helps to reduce the impact of relative displacement or vibration between components on the feeding accuracy. At the same time, this structure facilitates the overall installation and maintenance of the device, improves structural rigidity and operational stability, thereby ensuring the alignment accuracy of the feeding path and further enhancing the reliability of the whole machine.

[0087] In one embodiment, the feeding mechanism 1 operates as follows: After the vibrating hopper 20 is started, the flat key 10 gradually rises along the spiral path under the action of its internal spiral feeding structure and enters the guide channel 201 in sequence. Since the guide channel 201 is constructed as a single-piece passage structure, the flat key 10 enters the receiving groove 1121 on the receiving plate 112 one by one, thereby completing the transition from disordered feeding to ordered arrangement.

[0088] After the flat key 10 enters the receiving groove 1121, the switching cylinder 115 drives the guide block 114 to move to the first position, so that the first material channel 1141 in the guide block 114 is connected to the receiving groove 1121, and the flat key 10 in the receiving groove 1121 enters the first material channel 1141 under the action of gravity; then, the switching cylinder 115 drives the guide block 114 to move in the other direction to the second position, so that the first material channel 1141 is connected to the second material channel 116 in the mounting frame 111, thereby transferring the flat key 10 in the first material channel 1141 to the second material channel 116. During this transfer process, the flat key 10 moves down step by step along a predetermined path to achieve segmented conveying.

[0089] When the flat key 10 enters the second material channel 116, the adapter plate 12 moves under the drive of the drive motor 15 and the lead screw 16, aligning the discharge groove 121 on the adapter plate 12 with the second material channel 116, and the flat key 10 in the second material channel 116 falls into the discharge groove 121. At this time, the sliding block 13 blocks the discharge groove 121, so that the flat key 10 is temporarily stored in the discharge groove 121 to prevent it from falling prematurely. The drive motor 15 continues to drive the adapter plate 12 to move. At this time, the push-out cylinder 14 drives the sliding block 13 to move synchronously with the adapter plate 12, so that the sliding block 13 keeps the discharge chute 121 blocked. Until the sliding block 13 moves to the stop member 171 and stops moving after being stopped by the stop member 171, the drive motor 15 continues to drive the adapter plate 12 to move. As the adapter plate 12 continues to move, the sliding block 13 releases the blockage of the discharge chute 121. The adapter plate 12 continues to move to the preset position, so that the discharge chute 121 corresponds to the limiting groove 31 of the guide limiting structure 3. After reaching the corresponding position, the flat key 10 in the discharge chute 121 enters the limiting groove 31 under the action of gravity.

[0090] After the flat key 10 enters the limiting groove 31, the feeding mechanism 1 completes this feeding cycle. The transfer plate 12 is reset under the action of the drive motor 15, the sliding block 13 is also reset, and the guide block 114 returns to its initial position under the drive of the switching cylinder 115, waiting for the next flat key 10 to enter the receiving groove 1121. Through the above process, the flat key 10 successively undergoes steps such as receiving, segmented transfer, temporary storage, and fixed-point release, maintaining a controlled state throughout the feeding process. This ensures that the flat key 10 has a stable position and posture when entering the limiting groove 31, providing a reliable foundation for subsequent pressing.

[0091] Optionally, the pressing mechanism 2 includes a servo press 21 and a pressing head 22 connected to the servo press 21. The pressing head 22 moves along the pressing direction under the drive of the servo press 21. The limiting groove 31 of the guide limiting structure 3 is located directly below the pressing head 22 and aligned with the movement axis of the pressing head 22. The servo press can adopt displacement control or pressure closed-loop control.

[0092] By setting up a servo press 21 and driving the pressing head 22 to move along the pressing direction, while simultaneously arranging the limiting groove 31 of the guide limiting structure 3 directly below the pressing head 22 and aligning it with the movement axis of the pressing head 22, the flat key 10 is placed in a restricted state consistent with the pressing direction after entering the limiting groove 31. This structure allows the force exerted by the pressing head 22 on the flat key 10 to be stably transmitted along its axis, reducing the influence of lateral force on the posture of the flat key 10, thereby avoiding offset, tilting, or jamming during the pressing process, and improving the alignment accuracy between the flat key 10 and the keyway 91 of the center wheel 9.

[0093] Optionally, the pressing mechanism 2 further includes a pressing frame 23, which includes a top plate 231 and a side plate 232; a servo press 21 is mounted through the top plate 231, and a guide rail 2321 extending along the pressing direction is provided on the side plate 232. The pressing head 22 and the guide limiting structure 3 are respectively slidably engaged with the guide rail 2321; the guide limiting structure 3 is driven by a guide lifting cylinder 24 to move up and down along the guide rail 2321 to adjust the distance between it and the top surface of the center wheel 9.

[0094] By setting a press frame 23 in the press mechanism 2 and arranging guide rails 2321 extending along the press direction on the side plate 232, the press head 22 and the guide limiting structure 3 achieve sliding engagement through the guide rails 2321, thus forming a unified motion reference. Simultaneously, the guide limiting structure 3 is driven to move up and down along the guide rails 2321 by the guide lifting cylinder 24. The distance between the guide limiting structure 3 and the top surface of the center wheel 9 can be adjusted according to the size or working conditions of the center wheel 9, ensuring that the limiting groove 31 is always in a suitable working position. This structure can maintain a stable guiding relationship when processing center wheels 9 of different specifications, improve the adaptability of the device, and help ensure positioning accuracy and operational stability during the press process.

[0095] In some embodiments, the side plate 232 is provided with a hollow portion 2322, and the guide limiting structure 3 is connected to the guide lifting cylinder 24 through a connector 25. The connector 25 passes through the hollow portion 2322, and the upper edge and lower edge of the hollow portion 2322 respectively constitute the stroke limiting structure of the connector 25.

[0096] By providing a perforated portion 2322 on the side plate 232, and connecting the guide limiting structure 3 to the guide lifting cylinder 24 via a connector 25, with the connector 25 passing through the perforated portion 2322, and using the upper and lower edges of the perforated portion 2322 to limit the movement of the connector 25, the guide limiting structure 3 has a clear travel boundary during lifting. This structure ensures that the guide limiting structure 3 can be adjusted normally while preventing it from overtraveling or exceeding the preset range, thereby reducing the risk of structural interference or abnormal collisions and improving the safety and reliability of the device operation.

[0097] Optionally, the pressing mechanism 2 further includes a rotary table 26, a track fixture 27, and a rotary drive unit; the rotary table 26 is slidably fitted with the track fixture 27 and is used to fix the center wheel 9; the rotary drive unit includes a rotary drive part 281 and a linear drive part 282, the rotary drive part 281 is used to drive the rotary table 26 to rotate around its axis, and the linear drive part 282 is used to drive the rotary table 26 to reciprocate along the extension direction of the track fixture 27; under the combined action of rotation and linear motion, the keyway 91 of the center wheel 9 corresponds to the limiting groove 31.

[0098] By incorporating a rotary table 26, a track fixture 27, and a rotary drive unit into the pressing mechanism 2, the rotary table 26, under the combined action of the rotary drive unit 281 and the linear drive unit 282, can both rotate around its own axis and reciprocate along the track fixture 27, thereby achieving comprehensive adjustment of the position and angle of the center wheel 9. This structure ensures that the keyway 91 of the center wheel 9 precisely corresponds to the limiting groove 31 of the guide limiting structure 3, avoiding deviations caused by relying on manual alignment or single-direction adjustment, and improving alignment efficiency and accuracy. Simultaneously, the combination of rotation and linear motion gives the device greater flexibility to adapt to different working conditions, contributing to improved stability and automation of the overall pressing process.

[0099] In some embodiments, the rotary table 26 is mounted on the track fixture 27 and moves linearly along the extension direction of the track fixture 27 through a sliding fit; the rotary drive unit 281 in the rotary drive unit can be a servo motor or a stepper motor, which drives the rotary table 26 to rotate around its axis through a transmission structure to achieve the angle adjustment of the center wheel 9; the linear drive unit 282 can be a screw drive structure, a synchronous belt drive structure or a linear module, which is used to drive the rotary table 26 to reciprocate on the track fixture 27 to adjust the spatial position of the center wheel 9.

[0100] In practical applications, after the rotary table 26 moves linearly to a preset position, the central wheel 9 is driven to rotate by the rotary drive unit 281, causing its keyway 91 to gradually adjust to the position corresponding to the limiting groove 31 of the guide limiting structure 3; or, the rotary table 26 achieves synchronous adjustment of position and angle through the combined action of rotation and linear movement to meet the alignment requirements under different working conditions. Through the above methods, automatic alignment between the keyway 91 of the central wheel 9 and the limiting groove 31 can be achieved without manual intervention.

[0101] In some embodiments, the rotary table 26 is provided with a positioning structure for defining the position of the center wheel 9, so that the center wheel 9 maintains a stable installation state during rotation and movement, avoiding the impact of workpiece loosening or positional deviation on alignment accuracy. This structure ensures that the center wheel 9 can be angularly adjusted with the rotary table 26 while constraining its spatial position, which helps to improve the alignment reliability between the keyway 91 of the center wheel 9 and the limiting groove 31, thereby further improving the accuracy and consistency of the flat key 10 press-fitting and reducing assembly errors caused by unstable positioning.

[0102] In some embodiments, the glue application mechanism 4 includes a glue application head 41, a glue application lifting module 42, and a glue application moving module 43. The glue application lifting module 42 drives the glue application head 41 to move up and down along a first direction, and the glue application moving module 43 drives the glue application head 41 to move along a second direction, wherein the first direction and the second direction are perpendicular to each other. The glue application lifting module 42 and the glue application moving module 43 are connected in series to form a two-dimensional displacement adjustment structure for the glue application head 41 to adapt to different models of center wheels 9. The first direction is a vertical direction, the second direction is a horizontal direction, and the second direction is perpendicular to the pressing direction.

[0103] In some embodiments, the adhesive application lifting module 42 can be a cylinder module or an electric lifting module, used to drive the adhesive application head 41 to move up and down in a first direction, so that the adhesive application head 41 can enter or exit the keyway 91 of the center wheel 9; the adhesive application moving module 43 can be a slide module or a linear module, used to drive the adhesive application head 41 to move in a second direction to adjust its position in the horizontal plane. Through the series connection of the adhesive application lifting module 42 and the adhesive application moving module 43, the adhesive application head 41 can be displaced in two mutually perpendicular directions, thus forming a two-dimensional motion path. In practical applications, according to the size of different models of center wheels 9 and the position of the keyway 91, the stroke parameters of the two modules can be adjusted to make the adhesive application head 41 accurately move to the corresponding keyway 91 position and complete the adhesive application operation, thereby improving the adaptability and consistency of the adhesive application position.

[0104] Specifically, the glue application lifting module 42 and the glue application moving module 43 are connected in series. This can be understood as follows: in one case, the glue application lifting module 42 is connected to the glue application head 41, and the glue application moving module 43 drives the glue application lifting module 42 to move, thereby driving the glue application head 41 to move; in another case, the glue application moving module 43 is connected to the glue application head 41, and the glue application lifting module 42 drives the glue application moving module 43 to move, thereby driving the glue application head 41 to move.

[0105] In some embodiments, the glue applicator 41 is provided with a glue dispensing structure for dispensing a measured amount of glue.

[0106] In some embodiments, the dispensing structure on the glue applicator 41 may include a metering valve, a needle valve, or a quantitative dispensing assembly to control the output volume and dispensing rhythm of the glue. The dispensing structure can be connected to an external glue supply system and, under the action of a control signal, dispenses glue according to a set time or stroke, ensuring the glue is evenly applied to the keyway 91 of the center wheel 9. In practical applications, the glue dispensing amount can be adjusted according to the keyway 91 dimensions or process requirements of different models of center wheels 9, thereby avoiding assembly problems caused by excessive or insufficient glue, making the glue application process more stable and reliable, and providing good bonding conditions for the subsequent pressing of the flat key 10.

[0107] In some embodiments, a visual inspection device 5 is also included. The visual inspection device 5 includes a support frame 51, a camera assembly 52, and a light source 53. The camera assembly 52 is mounted on the support frame 51 via a camera lifting module 54 and is used to acquire image information of the keyway 91 area of ​​the center wheel 9. The light source 53 is disposed below the camera assembly 52 to provide illumination to the keyway 91 area. The shooting area of ​​the camera assembly 52 is set to correspond to the working position of the glue applicator 41 so as to detect the keyway 91 area before and after the glue application and pressing process, thereby determining whether the glue application in the keyway 91 is completed and whether the flat key 10 is installed in place.

[0108] In some embodiments, the support frame 51 of the vision inspection device 5 is located adjacent to the gluing mechanism 4 or the pressing mechanism 2. The camera assembly 52 is mounted on the support frame 51 via a camera lifting module 54 and can be adjusted vertically to accommodate center wheels 9 of different heights or sizes. A light source 53 is located below the camera assembly 52 and can be either a ring light source 53 or a strip light source 53 to provide uniform illumination to the keyway 91 area of ​​the center wheel 9, thereby improving the clarity of image acquisition. The shooting area of ​​the camera assembly 52 corresponds to the working position of the gluing head 41. After gluing is completed or before and after pressing, images of the keyway 91 area of ​​the center wheel 9 are acquired to obtain the state information within the keyway 91. By analyzing the acquired images, it can be determined whether gluing has been completed within the keyway 91 and whether the flat key 10 is in the correct installation state, thus achieving online inspection of key processes.

[0109] In some embodiments, the visual inspection device 5 is also used to output a control signal when the inspection result is abnormal, so as to control the pressing mechanism 2 to stop operating.

[0110] In some implementations, the vision inspection device 5 is electrically connected to the control system. When an abnormality is detected, such as incomplete glue application in the keyway 91 or improper installation of the flat key 10, the vision inspection device 5 outputs a control signal to the control system. The control system then controls the pressing mechanism 2 to stop operating or pause the current process, and may trigger an alarm or perform corrective actions. For example, if insufficient glue application is detected, the glue application mechanism 4 can be controlled to reapply glue; if the flat key 10 is not correctly inserted into the limit groove 31 or an installation abnormality is detected, the pressing head 22 can be prevented from continuing to operate. This closed-loop control method allows for timely intervention when abnormalities occur, preventing defective workpieces from entering subsequent processes, thereby improving the reliability of the entire machine and the consistency of product quality.

[0111] In some embodiments, the device further includes a clamping fixture 6, which includes a clamping bracket 61 and a clamping assembly 62. The clamping assembly 62 includes a clamping cylinder 621 and a gripper 622. The gripper 622 clamps the flat key 10 in the keyway 91 of the center wheel 9 under the drive of the clamping cylinder 621. The clamping fixture 6 also includes a pressure detection unit 63, which is used to detect the pressure of the clamping cylinder 621 in real time and output a control signal when an abnormal pressure is detected, so as to control the pressing mechanism 2 to stop or make adjustments, thereby avoiding pressing deviation or workpiece damage.

[0112] In some embodiments, the clamping fixture 6 is positioned adjacent to the pressing mechanism 2, and the clamping bracket 61 is used to mount the clamping assembly 62 and provide a supporting base. The clamping cylinder 621 in the clamping assembly 62 is fixed to the clamping bracket 61, and the gripper 622 is drivenly connected to the output end of the clamping cylinder 621. Under the drive of the clamping cylinder 621, the flat key 10 in the keyway 91 of the center wheel 9 is clamped, so that the flat key 10 is tightly pressed into the keyway 91 of the center wheel 9. The pressure detection unit 63 is connected to the clamping cylinder 621 and can be a pressure sensor or pressure switch, used to acquire the pressure information of the clamping cylinder 621 in real time. In practical applications, when the pressure of the clamping cylinder 621 reaches the set range, the gripper 622 forms a stable clamp on the flat key 10 at the center wheel keyway 91; when an abnormal pressure is detected (such as insufficient pressure or abnormal fluctuation), the pressure detection unit 63 outputs a signal to prompt or trigger the control system to adjust or stop the pressing operation, thereby avoiding damage to the flat key 10 due to unstable clamping.

[0113] In some embodiments, the device further includes a storage fixture 7 and a gripping mechanism 8. The storage fixture 7 is used to position and fix the pallet 110 carrying the center wheel 9. The storage fixture 7 includes a storage rack 71 and a clamping mechanism 72 disposed on the storage rack 71. The clamping mechanism 72 is used to clamp the pallet 110. The gripping mechanism 8 is used to perform loading and unloading operations between the storage fixture 7 and the pressing mechanism 2, including transferring the center wheel 9 without the flat key 10 installed from the pallet 110 to the rotary table 26, and transferring the center wheel 9 with the flat key 10 installed from the rotary table 26 back to the pallet 110.

[0114] In some embodiments, the storage fixture 7 is disposed on one side of the pressing mechanism 2 to hold the pallet 110 carrying the center wheel 9. The storage rack 71 supports the pallet 110 and determines its position. The clamping mechanism 72 is disposed on the storage rack 71 to clamp the pallet 110 to prevent it from moving during handling or handling. The gripping mechanism 8 is disposed between the storage fixture 7 and the pressing mechanism 2 to realize the automatic loading and unloading of the center wheel 9. Specifically, the gripping mechanism 8 grips the center wheel 9 on the pallet 110 without the flat key 10 installed and moves it to the rotary table 26 for subsequent processing; after the flat key 10 is pressed, the center wheel 9 on the rotary table 26 is gripped and placed back on the pallet 110. Through the above structural arrangement, the center wheel 9 can be automatically transferred between the storage fixture 7 and the pressing mechanism 2, reducing manual intervention, improving work efficiency, and helping to maintain the stability and consistency of the workpiece flow process.

[0115] In some embodiments, the gripping mechanism 8 includes a robotic arm 81 and a clamping assembly 82 disposed at the end of the robotic arm 81.

[0116] In some embodiments, the gripping mechanism 8 includes a robotic arm 81 and a clamping assembly 82 disposed at the end of the robotic arm 81. The robotic arm 81 may be a multi-axis robotic arm 81, used to achieve multi-directional movement in space, thereby completing the transfer of the center wheel 9 between the storage fixture 7 and the pressing mechanism 2. The clamping assembly 82 is disposed at the end of the robotic arm 81 and may adopt a pneumatic gripper 622 or an electric gripper 622 structure, used to clamp and release the center wheel 9. In practical applications, the robotic arm 81 moves to the top of the tray 110 according to a preset path, grips the center wheel 9 without the flat key 10 installed by the clamping assembly 82, and moves it to the rotary table 26 for positioning; after pressing is completed, the center wheel 9 with the flat key 10 pressed is gripped from the rotary table 26 and placed back on the tray 110. Through the cooperation of the robotic arm 81 and the clamping assembly 82, the automatic transfer of the center wheel 9 between different workstations can be realized, improving the automation level of the device and helping to ensure the stability and repeatability of the handling process.

[0117] In one implementation scenario, this embodiment is applied to the automated assembly process of the center wheel 9 in a motor production line. Multiple center wheels 9 are pre-placed in a tray 110, which is positioned by a storage fixture 7 and fixed by a clamping mechanism 72. The gripping mechanism 8 grips each center wheel 9 without a flat key 10 installed from the tray 110 according to a preset program and transfers it to the rotary table 26 in the pressing mechanism 2 for positioning. After the rotary table 26 completes its position adjustment on the track fixture 27, the angle of the center wheel 9 is adjusted by the rotation drive unit so that the keyway 91 of the center wheel 9 corresponds to the limiting groove 31 of the guide limiting structure 3.

[0118] After the center wheel 9 is positioned, or the rotary drive unit first drives the center wheel 9 to the glue application mechanism 4, and after the glue application is completed, it drives the center wheel 9 to the guide limit structure 3. The glue application mechanism 4 is started, and the glue application head 41 moves to the keyway 91 position of the center wheel 9 under the drive of the glue application lifting module 42 and the glue application moving module 43, and applies a quantitative amount of glue into the keyway 91. After the glue application is completed, the vision inspection device 5 acquires images of the keyway 91 area, and analyzes and judges whether the glue application in the keyway 91 has been completed and whether the position meets the requirements; if the detection result is abnormal, the control system can interrupt the subsequent process or trigger a compensation operation.

[0119] The feeding mechanism 1 operates, conveying the flat keys 10 one by one from the vibrating hopper 20 into the limiting groove 31 of the guide limiting structure 3, so that the flat keys 10 are positioned in the limiting groove 31. Subsequently, the pressing mechanism 2 drives the pressing head 22 to move along the pressing direction, pressing the flat keys 10 into the keyway 91 of the center wheel 9 while the limiting groove 31 limits the flat keys 10. After pressing is completed, the clamping fixture 6 clamps the center wheel 9, and the clamping status is monitored in real time by the pressure detection unit 63 to ensure the stability of the center wheel 9 during the pressing process.

[0120] After the flat key 10 is pressed into place, the vision inspection device 5 can inspect the keyway 91 area again to confirm that the flat key 10 is installed correctly. Once confirmed, the gripping mechanism 8 removes the center wheel 9, which has been pressed into place, from the rotary table 26 and places it back on the tray 110, thus achieving automatic unloading of the center wheel 9. Subsequently, the rotary table 26 resets, and the feeding mechanism 1 and the gluing mechanism 4 enter the next cycle to continue processing the subsequent center wheels 9.

[0121] Through the above-described workflow, this device achieves continuous automated processing of the center wheel 9 from loading, positioning, gluing, inspection, feeding, pressing to unloading, reducing manual intervention, improving work efficiency, and helping to ensure the consistency of product assembly quality.

[0122] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims, and the foregoing embodiments should be considered exemplary and non-limiting.

Claims

1. A center wheel flat key press-fitting device, characterized in that, include: Feeding mechanism; Press-fitting mechanism; A guide and limit structure is installed on the pressing mechanism; The guide limiting structure is provided with a limiting groove extending along the pressing direction. The limiting groove is adapted to the flat key to form a lateral limiting for the flat key. The feeding mechanism is used to convey the flat key to the limiting groove, so that the flat key is positioned along the extension direction of the limiting groove; The pressing mechanism is used to move along the pressing direction and, under the condition that the limiting groove limits the flat key, press the flat key into the keyway of the center wheel.

2. The center wheel flat key pressing device according to claim 1, characterized in that: The feeding mechanism includes: The receiving part includes a mounting frame and a receiving plate disposed on the mounting frame; The receiving plate is provided with a receiving groove, which is used to communicate with the material guide channel of the vibrating hopper to receive the flat key.

3. The center wheel flat key pressing device according to claim 2, characterized in that: The mounting frame and the receiving plate surround to form a receiving cavity, and a guide block is provided in the receiving cavity. The guide block moves back and forth along the axial direction under the drive of the switching cylinder. The guide block is provided with a through first channel, and the mounting frame is provided with a through second channel. The guide block connects the first channel to the receiving groove and the first channel to the second channel at different positions to achieve segmented transfer of the flat key.

4. The center wheel flat key press-fitting device according to claim 3, characterized in that: The feeding mechanism also includes: An adapter plate is connected to the mounting frame, and the adapter plate is provided with a through discharge chute; When the discharge chute corresponds to the second material channel, the flat key in the second material channel falls into the discharge chute.

5. The center wheel flat key press-fitting device according to claim 4, characterized in that: The feeding mechanism also includes: A sliding block is located at the bottom of the adapter plate and can slide relative to the adapter plate; the sliding block is used to block the discharge chute so that the flat key is temporarily stored in the discharge chute.

6. The center wheel flat key press-fitting device according to claim 4, characterized in that: When the adapter plate moves to the preset position, the discharge chute connects with the limiting groove of the guide limiting structure, so that the flat key enters the limiting groove.

7. The center wheel flat key press-fitting device according to claim 1, characterized in that: The pressing mechanism includes a servo press and a pressing head connected to the servo press. The pressing head moves along the pressing direction under the drive of the servo press. The limiting groove of the guide limiting structure is located directly below the pressing head and aligned with the movement axis of the pressing head.

8. The center wheel flat key press-fitting device according to claim 7, characterized in that: The pressing mechanism further includes: The press frame includes a top plate and side plates; The servo press is mounted through the top plate, and the side plate is provided with a guide rail extending along the pressing direction. The pressing head and the guide limiting structure are respectively slidably engaged with the guide rail. The guide limiting structure is driven by a guide lifting cylinder to move up and down along the guide rail to adjust the distance between itself and the top surface of the center wheel.

9. The center wheel flat key pressing device according to claim 1, characterized in that: The pressing mechanism also includes a rotary table, a track tooling, and a rotary drive unit; The rotary table slides in conjunction with the track fixture and is used to fix the center wheel; The rotary drive unit includes a rotary drive section and a linear drive section. The rotary drive section is used to drive the rotary table to rotate around its axis, and the linear drive section is used to drive the rotary table to reciprocate along the extension direction of the track fixture. The rotary table, through the combined action of rotation and linear motion, aligns the keyway of the central wheel with the limiting groove.

10. The center wheel flat key press-fitting device according to claim 1, characterized in that: Also includes: A clamping fixture includes a clamping bracket and a clamping assembly. The clamping assembly includes a clamping cylinder and a jaw. The jaw clamps the flat key in the keyway of the center wheel under the drive of the clamping cylinder. The clamping fixture also includes a pressure detection unit, which is used to detect the pressure of the clamping cylinder in real time and output a control signal when an abnormal pressure is detected, so as to control the pressing mechanism to stop or make adjustments.

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