BLDC rivet automatic feeding detection mechanism

Abstract

The application discloses a BLDC rivet automatic feeding detection mechanism, which comprises two transverse vibration supports arranged on a workbench, a longitudinal feeding plate arranged corresponding to a channel, a rivet detection assembly for detecting defective rivets and a defective product dropping mechanism for receiving defective rivets. The transverse vibration supports and the longitudinal feeding plate are arranged to quickly convey the rivets to be detected, so that manual feeding is avoided and the work efficiency is improved. Meanwhile, the rivet detection assembly and the defective product dropping mechanism are arranged to cooperate with each other to detect the rivets. The automatic detection improves the detection accuracy and realizes synchronous detection of a conveying line, thereby reducing the complexity of an assembly line.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mechanical equipment, and particularly relates to a BLDC rivet automatic feeding and detecting mechanism. BACKGROUND

[0002] The rotor is a rotating part of the motor, which is composed of a rotor core, a rotor winding and a rotating shaft and the like, and functions to obtain a rotating torque under the action of a rotating magnetic field. Four rivets are needed for riveting during the installation of the rotor, so as to rivet the balance block, the oil throwing cap and the like on the rotor core. The riveting positions of the four rivets need to be quite accurate, and the four rivets are not completely the same, and there is a difference between the long and short ones. At present, most of the production lines in the rivet feeding link adopt four different feeding lines to respectively feed the rivets to the rotor core, which greatly affects the assembly time, increases the complexity of the assembly line and reduces the production efficiency. SUMMARY

[0003] The application will be further described below in combination with the drawings of the specification, so as to better understand the technical solutions.

[0004] The application is realized by the following technical solutions.

[0005] The BLDC rivet automatic feeding and detecting mechanism is characterized by comprising transverse vibration supports, longitudinal feeding plates, rivet detecting assemblies and defective product dropping mechanisms arranged on a workbench.

[0006] The transverse vibration supports are symmetrically arranged in two, and a channel is left between the end portions of the two transverse vibration supports. The upper end of the transverse vibration support is provided with a vibration groove for vertically placing and feeding the rivets.

[0007] The longitudinal feeding plates are arranged corresponding to the channel. The longitudinal feeding plates are controlled by longitudinal driving mechanisms to move back and forth along the space where the channel is located. Rivet clamping grooves are integrally arranged on the two sides of the front end of the longitudinal feeding plate.

[0008] The rivet detecting assembly comprises two fixed plates fixed vertically upward on the workbench. The spacing between the two fixed plates corresponds to the channel. Rivet pressing assemblies are fixedly arranged at the top end of the two fixed plates. A rivet detecting mechanism is arranged below the workbench corresponding to the position of the rivet pressing assembly, and is used to detect whether the rivet is defective.

[0009] The defective product dropping mechanism comprises a dropping groove and a blowing nozzle. The dropping groove and the blowing nozzle are arranged corresponding to the outside of the fixed plate, and the blowing nozzle is arranged on the two sides of the dropping groove. The dropping groove is arranged corresponding to the position of the rivet clamping groove. A long hole groove is arranged at the position of the rivet clamping groove of the fixed plate. The blowing nozzle is provided with a blowing hole corresponding to the position of the fixed plate.

[0010] Further, the longitudinal driving mechanism comprises a track mounted on the workbench and a sliding plate arranged on the track, the upper surface of the sliding plate is fixedly connected with the rear end of the longitudinal feeding plate, and the sliding plate is driven by a sliding plate motor.

[0011] Further, the rivet clamping groove is provided with four arc-shaped through grooves arranged on both sides of the longitudinal feeding plate.

[0012] Further, the rivet pressing assembly comprises a pressing cylinder, the pressing cylinder is connected with the motor mounting plate, the motor mounting plate is fixedly arranged on the top end of the fixed plate, the bottom of the pressing cylinder is provided with a pressing block, the pressing block is provided with a pressing column corresponding to the position of the rivet clamping groove, and the motor mounting plate is provided with a circular hole for the pressing block to extend out.

[0013] Further, the rivet detection mechanism comprises a servo motor and four rivet detection rods driven by the servo motor, and the four rivet detection rods are arranged corresponding to the positions of the four rivet clamping grooves.

[0014] Further, gaps are left between the two sides of the longitudinal feeding plate and the corresponding fixed plates, and the gaps are respectively communicated with the circular hole and the strip-shaped barrel hole groove.

[0015] The present application realizes the rapid conveying of the rivet to be detected by the transverse vibration support and the longitudinal feeding plate, avoids manual feeding, improves the work efficiency, and realizes the detection of the rivet through the cooperation of the rivet detection assembly and the defective product discharging mechanism, so that the efficiency is improved, the detection accuracy is greatly improved, the synchronous detection of a conveying line is realized, and the complexity of the assembly line is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figures 1-2 The present application is different from the structure of the present application in different directions;

[0017] Figure 3 The present application is different from the structure of the present application in different directions;

[0018] In the figure, 1 is a workbench, 2 is a transverse vibration support, 3 is a longitudinal feeding plate, 4 is a vibration groove, 5 is a rivet clamping groove, 6 is a fixed plate, 7 is a discharging groove, 8 is a blowing nozzle, 9 is a through hole groove, 10 is a track, 11 is a sliding plate, 12 is a sliding plate motor, 13 is a pressing cylinder, 14 is a motor mounting plate, 15 is a pressing block, 16 is a pressing column, 17 is a servo motor, and 18 is a rivet detection rod. DETAILED DESCRIPTION

[0019] The present application will be further described in detail below in combination with the drawings of the present application, so as to better understand the technical solutions.

[0020] The application discloses a BLDC rivet automatic feeding detection mechanism which is mainly used for conveying rivets in the assembly process of a rotor, replaces four conveying lines with one conveying line, simplifies the complexity of equipment, and improves the efficiency and detection precision. Figure 1 As shown in the specific structure, the automatic feeding detection mechanism comprises transverse vibration supports, a longitudinal feeding plate, a rivet detection assembly and a defective product dropping mechanism which are arranged on a workbench.

[0021] Continuously referring to Figures 1-3 Two transverse vibration supports 2 are symmetrically arranged on the workbench 1, and passages are left between the end portions of the two transverse vibration supports 2. The upper end of each transverse vibration support 2 is provided with a vibration groove 4 for vertically placing and conveying rivets. In order to realize the movement of the rivets after being output from the vibration groove 4, a longitudinal feeding plate 3 is arranged on the workbench 1 in the direction of the passages. The longitudinal feeding plate 3 is controlled by a longitudinal driving mechanism to realize the forward and backward movement along the space where the passages are located. Rivet clamping grooves 5 are integrally arranged on the two sides of the front end of the longitudinal feeding plate 3. The rivet clamping grooves 5 are arranged in four and symmetrically arranged on the two sides of the longitudinal feeding plate 3. The rivet clamping grooves 5 are through grooves with an arc-shaped cross section, and the edge of the arc shape is smaller than the top cap of the rivet, so that the rivet is hung on the rivet clamping groove 5. The longitudinal driving mechanism comprises a track 10 arranged on the workbench 1 and a sliding plate 11 arranged on the track 10. The upper surface of the sliding plate 11 is fixedly connected with the rear end of the longitudinal feeding plate 3, and the sliding plate 11 is driven by a sliding plate motor 12.

[0022] Continuously referring to Figure 1 The rivet detection assembly comprises two fixed plates 6 which are vertically upwardly fixed on the workbench 1. The spacing between the two fixed plates 6 corresponds to the passages. A rivet pressing assembly is fixedly arranged at the top end of each fixed plate 6. The rivet pressing assembly comprises a pressing cylinder 13 which is embeddedly arranged on a motor mounting plate 14. The motor mounting plate 14 is fixedly arranged at the top end of the fixed plate 6. A pressing block 15 is arranged at the bottom of the pressing cylinder 13. A pressing column 16 is arranged at the position of the pressing block 15 corresponding to the rivet clamping groove 5. A circular hole is arranged on the motor mounting plate 14 for the pressing block 15 to extend out. A rivet detection mechanism is arranged below the workbench 1 corresponding to the position of the rivet pressing assembly, and is used for detecting whether the rivet is a defective product. The rivet detection mechanism comprises a servo motor 17 and four rivet detection rods 18 which are driven by the servo motor 17. The four rivet detection rods 18 are arranged at positions corresponding to the four rivet clamping grooves 5.

[0023] In order to collect defective products, the blanking groove 7 and the blowing nozzle 8 are fixed on the outer side of the two fixed plates 6, and the blowing nozzle 8 is located on both sides of the blanking groove 7, the blowing nozzle 8 is connected with an external air source, the blanking groove 7 is arranged corresponding to the position of the rivet clamping groove 5, and the fixed plate 6 is provided with a long strip-shaped through hole groove 9 corresponding to the position of the rivet clamping groove 5, and the blowing nozzle 8 is provided with a blowing through hole corresponding to the position of the fixed plate 6. In order to facilitate the rivet to easily fall off from the rivet clamping groove 5 under the action of the air source, a gap is left between the two sides of the longitudinal feeding plate 3 and the corresponding fixed plate 6, which is respectively communicated with the circular hole and the strip-shaped barrel hole groove 9.

[0024] The working process of the present application: initial state, the rivet enters the vibration groove 4 of the transverse vibration support 2 from the material box, the top cap of the rivet is clamped on the vibration groove 4 to make the rivet move forward along the vibration groove 4 vertically downward, when moving to the end of the vibration groove 4, the rivet enters the front row of rivet clamping grooves 5 corresponding to the vibration groove 4, then the slide plate motor 12 starts again to push the longitudinal feeding plate 3 forward by a small distance, so that the second row of rivet clamping grooves 5 on the longitudinal feeding plate 3 is aligned with the port of the vibration groove 4, when the four rivet clamping grooves 5 are embedded in the rivet, the slide plate motor 12 starts again to drive the longitudinal feeding plate 3 to continue to move forward to a distance into the rivet detection station, at this time, the pressing cylinder 13 located above starts to drive the four pressing columns 16 on the pressing block 15 to move downward and press the rivet downward, at the same time, the servo motor 17 located below the workbench 1 starts to make the four rivet detection rods 18 move upward and top the through hole at the lower end of the rivet, if the quality of the through hole is not good or the rivet specification is not in conformity with the regulation, the servo motor 17 will sense that the pressure is not good and stop the upward pressing and return to the original position, then the blowing nozzle 8 corresponding to the defective rivet blows strong airflow to blow the non-conforming rivet into the blanking groove 7; the remaining conforming rivet continues to move forward to the grabbing station under the action of the slide plate motor 12 for subsequent rivet grabbing and installation.

Claims

1. An automatic feeding and inspection mechanism for BLDC rivets, characterized in that... Includes a transverse vibration bracket (2) mounted on the workbench (1), a longitudinal feeding plate (3), a rivet detection assembly, and a defective product unloading mechanism: Horizontal vibration support (2): There are two horizontal vibration supports (2) symmetrically arranged. A channel is left between the ends of the two horizontal vibration supports (2). The upper end of the horizontal vibration support (2) is provided with a vibration groove (4) for vertical placement and conveying of rivets. Longitudinal feeding plate (3): The longitudinal feeding plate (3) is set in the corresponding channel. The longitudinal feeding plate (3) is controlled by the longitudinal drive mechanism to move back and forth along the space where the channel is located. The front ends of the longitudinal feeding plate (3) are integrally provided with rivet slots (5). Rivet detection assembly: includes two fixed plates (6) that are fixed vertically upward on the workbench (1). The distance between the two fixed plates (6) corresponds to the channel. A rivet pressing assembly is fixedly installed at the top of the two fixed plates (6). A rivet detection mechanism is installed below the workbench (1) at the position corresponding to the rivet pressing assembly, for detecting whether the rivet is a defective product. Defective product unloading mechanism: includes unloading groove (7) and air blowing nozzle (8). The unloading groove (7) and air blowing nozzle (8) are respectively arranged on the outside of the fixed plate (6), and the air blowing nozzle (8) is located on both sides of the unloading groove (7). The unloading groove (7) is arranged at the position corresponding to the rivet slot (5), and the fixed plate (6) is provided with a long strip through hole groove (9) at the position corresponding to the rivet slot (5). The air blowing nozzle (8) is provided with an air blowing through hole at the position corresponding to the installation position of the fixed plate (6).

2. The BLDC rivet automatic feeding and detection mechanism as described in claim 1, characterized in that... The longitudinal drive mechanism includes a track (10) mounted on the workbench (1) and a slide plate (11) mounted on the track (10). The upper surface of the slide plate (11) is fixedly connected to the rear end of the longitudinal feed plate (3). The slide plate (11) is driven by a slide plate motor (12).

3. The BLDC rivet automatic feeding and detection mechanism as described in claim 1, characterized in that... There are four rivet slots (5), which are located on both sides of the longitudinal feed plate (3). The rivet slots (5) are through slots with an arc-shaped cross section.

4. The BLDC rivet automatic feeding and detection mechanism as described in claim 1, characterized in that... The rivet pressing assembly includes a pressing cylinder (13), which is embedded in the motor mounting plate (14). The motor mounting plate (14) is fixedly mounted on the top of the fixing plate (6). A pressing block (15) is provided at the bottom of the pressing cylinder (13). In addition to a pressing post (16) being provided at the position of the pressing block (15) corresponding to the rivet slot (5), a circular hole is provided on the motor mounting plate (14) for the pressing block (15) to extend out.

5. The BLDC rivet automatic feeding and detection mechanism as described in claim 1, characterized in that... The rivet detection mechanism includes a servo motor (17) and four rivet detection rods (18) driven by the servo motor (17), the four rivet detection rods (18) being positioned corresponding to the four rivet slots (5).

6. The BLDC rivet automatic feeding and detection mechanism as described in claim 4, characterized in that... There are gaps between the two sides of the longitudinal feeding plate (3) and the corresponding fixing plate (6), and these gaps are connected to the circular hole and the strip through hole groove (9) respectively.

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