A detection device for rivet assembly

Abstract

The utility model provides a detection device for rivet assembly, including first mechanism and second mechanism, first mechanism includes length detection subassembly, second mechanism includes and in position identification subassembly of auxiliary subassembly of material distribution, the utility model discloses a first mechanism for rivet length detection is fixedly arranged at the outlet of the direct vibration track of rivet feeding mechanism, and when the rivet is distributed, the second mechanism is used to detect whether the rivet is in position, the sensor is fixedly arranged, and does not move with the material distribution action, guarantees its service life, reduces the shutdown rate of assembly production line and long -term production cost to some extent.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing, and in particular to a testing device for rivet assembly. Background Technology

[0002] During the production process of motor stators and rotors, the corresponding laminations are usually stacked to a set thickness and then riveted together to form a complete iron core. With the advancement of production automation, existing production lines can basically realize the automation of stator and rotor assembly. Rivets are fed through a vibratory feeder, and other means such as robotic arms are used to pick up the rivets from the vibratory feeder outlet and feed them to the assembly station.

[0003] To ensure the accuracy of riveting, the length of the rivets is usually detected at the discharge port of the vibratory feeder of the rivet feeding mechanism. The rivets are then transferred to the next process via a corresponding material distribution mechanism. Simultaneously, to avoid conflicts, it is necessary to monitor whether the rivets at the material distribution mechanism have been removed. This typically requires the installation of detection components, such as fiber optic sensors, at the discharge port of the rivet feeding mechanism to ensure the sequential operation of each mechanism. However, due to space limitations in existing rivet feeding mechanisms, the existing fiber optic sensors must not only detect the rivet length but also move synchronously with the material distribution mechanism to detect whether the rivets are in place. This constant movement of the fiber optic sensors results in a short lifespan, necessitating frequent replacements and increasing production costs. Summary of the Invention

[0004] To address the aforementioned problems, this utility model proposes a detection device for rivet assembly.

[0005] The main contents of this utility model include: A testing device for rivet assembly is configured at the outlet of the linear vibration track of a rivet feeding mechanism; the testing device includes a testing frame and a first mechanism and a second mechanism disposed on the testing frame. The first mechanism includes a length detection component; the length detection component is fixedly disposed below the outlet of the linear vibration track of the rivet feeding mechanism, and is used to detect the length of the rivet. The second mechanism includes a material distribution auxiliary component and an in-situ identification component; the material distribution auxiliary component includes a first auxiliary unit and a second auxiliary unit, the first auxiliary unit being disposed on one side of the outlet of the linear vibration track of the rivet feeding mechanism; the second auxiliary unit lifts the rivets that have moved above it into the first auxiliary unit; the in-situ identification component is used to detect whether there are rivets in the first auxiliary unit.

[0006] Preferably, the length detection component includes at least one fiber optic sensor.

[0007] Preferably, the second auxiliary unit includes a lifting cylinder fixedly mounted on the testing platform and a lifting plate connected to the lifting cylinder; the lifting cylinder drives a rivet located above it to move upward through the lifting plate.

[0008] Preferably, the first auxiliary unit includes a transfer cylinder and an auxiliary plate connected to the transfer cylinder, wherein the auxiliary plate has a positioning slot for accommodating rivets; In its initial state, the auxiliary plate is pressed against the exit of the linear vibration track; When material needs to be separated, the transfer cylinder drives the auxiliary plate to move to one side of the linear vibration track, so that the positioning slot is opposite to the material trough of the linear vibration track.

[0009] Preferably, the in-situ identification component includes at least one in-situ sensor.

[0010] Preferably, the in-situ identification component includes an identification bracket disposed on one side of the lifting cylinder; the in-situ sensor is disposed above the identification bracket.

[0011] The beneficial effects of this utility model are as follows: This utility model proposes a detection device for rivet assembly. A first mechanism for detecting rivet length is fixedly installed at the exit of the linear vibration track of the rivet feeding mechanism. At the same time, a second mechanism is used to detect whether the rivets are in place when the rivets are being distributed. The sensors used are all fixedly installed and do not move with the distribution action, which ensures their service life and reduces the downtime rate of the assembly line and long-term production costs to a certain extent. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of point C in the middle; Figure 3 This is an assembly diagram of the first mechanism and the second structure of this utility model; Figure label: A - Rivet feeding mechanism; A10 - Straight vibrating track; A100 - Material trough of straight vibrating track; B - Rivet; 1-First mechanism; 100-Detection stand; 10-Length detection component; 11-Fiber optic sensor; 2-Second mechanism; 20-Material distribution auxiliary component; 200-First auxiliary unit; 201-Transfer cylinder; 202-Auxiliary plate; 2020-Positioning slot; 210-Second auxiliary unit; 211-Lifting cylinder; 212-Lifting plate; 30-In-place identification component; 300-Identification bracket; 301-Position sensor. Detailed Implementation

[0013] The technical solution protected by this utility model will be described in detail below with reference to the accompanying drawings.

[0014] Please refer to Figures 1 to 3 This utility model discloses a detection device for rivet assembly, which is configured at the outlet of the linear vibration track A10 of the rivet feeding mechanism A. Figure 1 Two sets of rivet feeding mechanisms arranged in parallel and their matching detection devices are provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the 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 the utility model.

[0015] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of a utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] In utility models, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 the utility model according to the specific circumstances.

[0017] In one embodiment, rivet B moves sequentially to its exit point along the linear vibration track A10 via a vibratory feeder. Figure 2As can be seen, the rivet head is facing upwards and is fed vertically. When it moves to the outlet of the vertical vibration track A10, which is the discharge port of the feeding mechanism, the length of the rivet is detected by the detection device of this utility model. The second mechanism then lifts the rivet to a set position, waiting for the subsequent device to take the rivet out of the material groove A100 of the vertical vibration track and transfer it to the subsequent process. The detection device of this utility model can also detect whether there is a rivet at the position after the rivet is lifted. If the subsequent device does not remove the rivet, the second mechanism will not lift the next rivet. The second mechanism will only continue to work after it is detected that the rivet has been removed, so as to avoid movement conflict. Specifically, the detection device includes a detection stand 100 and a first mechanism 1 and a second mechanism 2 disposed on the detection stand 100; wherein, the first mechanism 1 includes a length detection component 10; the length detection component 10 includes at least one fiber optic sensor 11. In this example, two sets of fiber optic sensors 11 are fixedly disposed below the outlet of the linear vibration track A10 of the rivet feeding mechanism A. When the rivet shank of the rivet that moves to the outlet via the linear vibration track A10 extends into the detection range of the fiber optic sensor 11, the fiber optic sensor detects the length of the rivet; furthermore, each set of fiber optic sensors 11 may include two or more separate fiber optic sensors disposed vertically. With this design, rivets of corresponding lengths can be detected separately and then transported to the corresponding processes by the subsequent material distribution device to realize the feeding of different rivets.

[0018] The second mechanism includes a material distribution auxiliary component 20 and an in-situ identification component 30. The material distribution auxiliary component 20 includes a first auxiliary unit 200 and a second auxiliary unit 210. The first auxiliary unit 200 is disposed on one side of the outlet of the linear vibration track A100 of the rivet feeding mechanism A. The first auxiliary unit 200 includes a transfer cylinder 201 and an auxiliary plate 202 connected to the transfer cylinder 201. The auxiliary plate 202 has a positioning slot 2020 for accommodating rivets B. When rivet B just moves to the outlet of the linear vibration track A10 and is detected by the length detection component, the auxiliary plate 202 presses against the outlet of the linear vibration track; that is, the auxiliary plate 202 covers the outlet of the linear vibration track. The rivet B is partially encapsulated within the material trough A100 of the linear vibrating track. When the rivet, after length detection, needs to be transported to a subsequent process, it is lifted to the corresponding height by the second auxiliary unit 210. At this time, the transfer cylinder 201 pushes the auxiliary plate 202 to move towards the linear vibrating track, so that the positioning slot 2020 on the auxiliary plate 202 is aligned with the material trough A100 of the linear vibrating track, thereby releasing the restriction of the auxiliary plate 202 on the rivet B. Then, the rivet B can move upward under the drive of the second auxiliary unit 210, and its head passes through the positioning slot 2020. Then, the subsequent material distribution device can be controlled to remove the rivet B. Meanwhile, the in-situ identification component 30 monitors in real time whether there is a rivet B in the positioning slot 2020. If there is, the second auxiliary unit 210 will stop lifting; if not, it means that the rivet has been removed. At this time, the first auxiliary unit 200 returns to its original position, and the second auxiliary unit 210 waits for the next length detection to be completed before taking action.

[0019] Specifically, the second auxiliary unit 210 includes a lifting cylinder 211 fixedly mounted on the detection platform 100 and a lifting plate 212 connected to the lifting cylinder 211; the lifting cylinder 211 drives the rivet B located above it to move upward through the lifting plate 212, and the in-situ identification component 30 includes at least one in-situ sensor 301. In this embodiment, the in-situ identification component 30 includes an identification bracket 300, which is disposed on one side of the lifting cylinder 211; the in-situ sensor 301 is disposed above the identification bracket 300, so that the lifted rivet B is within its detection range.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A detection device for rivet assembly, arranged at the outlet of a straight vibration track of a rivet feeding mechanism; characterized in that, The testing device includes a testing stand and a first mechanism and a second mechanism disposed on the testing stand; The first mechanism includes a length detection component; the length detection component is fixedly disposed below the outlet of the linear vibration track of the rivet feeding mechanism, and is used to detect the length of the rivet. The second mechanism includes a material distribution auxiliary component and an in-situ identification component; the material distribution auxiliary component includes a first auxiliary unit and a second auxiliary unit, the first auxiliary unit being disposed on one side of the outlet of the linear vibration track of the rivet feeding mechanism; the second auxiliary unit lifts the rivets that have moved above it into the first auxiliary unit; the in-situ identification component is used to detect whether there are rivets in the first auxiliary unit.

2. A detecting device for rivet assembly according to claim 1, wherein The length detection component includes at least one fiber optic sensor.

3. The detecting device for rivet assembly according to claim 1, wherein The second auxiliary unit includes a lifting cylinder fixedly mounted on the testing platform and a lifting plate connected to the lifting cylinder; the lifting cylinder drives a rivet located above it to move upward through the lifting plate.

4. A detecting device for rivet assembly according to claim 3, wherein The first auxiliary unit includes a transfer cylinder and an auxiliary plate connected to the transfer cylinder. The auxiliary plate has a positioning slot for accommodating rivets. In the initial state, the auxiliary plate is pressed against the exit of the linear vibration track; When material needs to be separated, the transfer cylinder drives the auxiliary plate to move to one side of the linear vibration track, so that the positioning slot is opposite to the material trough of the linear vibration track.

5. A detection device for rivet assembly according to claim 4, wherein The in-situ identification component includes at least one in-situ sensor.

6. A detection device for rivet assembly according to claim 5, wherein The in-situ identification component includes an identification bracket disposed on one side of the lifting cylinder; the in-situ sensor is disposed above the identification bracket.

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