A rotary mouthpiece mechanism

Abstract

The application relates to a rotating nozzle mechanism, which comprises a fixed base, a nozzle assembly, a hollow rotating shaft, a hollow motor, a pressure sensor and a spring; the hollow motor and the pressure sensor are fixed on the fixed base, the hollow rotating shaft is connected with an output shaft of the hollow motor; the nozzle assembly is provided with a ventilation hole, the hollow rotating shaft is slidingly arranged in the ventilation hole; the spring is sleeved on the hollow rotating shaft, and the two ends of the spring are respectively abutted between the fixed base and the nozzle assembly, and the side, away from the output shaft, of the hollow motor is connected with a trachea rotating joint. The spring and the pressure sensor are used for detecting the pressure of the nozzle in real time, so that the product damage rate is reduced. Moreover, the pressure sensor is fixed on the fixed base, the movement of the pressure sensor can be reduced, the wire wear is reduced, and the service life of the pressure sensor is prolonged.

Description

Technical Field

[0001] This application relates to the field of material handling technology, and in particular to a rotary suction nozzle mechanism. Background Technology

[0002] Currently, the 3C electronics industry has experienced rapid development, with various 3C components becoming increasingly smaller and more precise. In the automated production process, the existing method involves using a suction nozzle to adsorb materials. However, the material handling process requires extreme care, as excessive pressure can scratch or damage the product.

[0003] In existing rotary suction nozzles, contact pressure sensors are used to detect the pressure. However, contact pressure sensors usually rotate with the nozzle, which can cause the sensor wires to swing frequently, leading to malfunctions and reduced lifespan. Utility Model Content

[0004] In order to reduce malfunctions of contact pressure sensors and improve their lifespan, this application provides a rotary suction nozzle mechanism.

[0005] This application provides a rotary suction nozzle mechanism, which adopts the following technical solution:

[0006] A rotary suction nozzle mechanism includes: a fixed base, a suction nozzle assembly, a hollow adapter shaft, a hollow motor, a pressure sensor, and a spring; the hollow motor and the pressure sensor are both fixed on the fixed base, and the hollow adapter shaft is connected to the output shaft of the hollow motor; the suction nozzle assembly is provided with a vent hole, and the hollow adapter shaft is slidably disposed in the vent hole; the spring is sleeved on the hollow adapter shaft, and the two ends of the spring abut against the fixed base and the suction nozzle assembly respectively; a rotary joint for an air tube is connected to the side of the output shaft of the hollow motor away from the suction nozzle assembly.

[0007] Optionally, the nozzle assembly includes multiple nozzle heads, a nozzle fixing seat, and a sliding limit seat. The nozzle fixing seat is provided with an air passage, and the air vent is provided in the sliding limit seat. The air passage, the air vent, and the multiple nozzle heads are connected. The hollow adapter shaft is provided with a waist-shaped hole on its periphery, and the sliding limit seat is provided with a limit bolt that mates with the waist-shaped hole.

[0008] Optionally, a sliding joint is provided at the end of the hollow adapter shaft away from the hollow motor, and a sliding ring is provided on the side wall of the vent near the nozzle fixing seat, with the sliding joint and the sliding ring fitting together with a clearance.

[0009] Optionally, the nozzle fixing seat and the sliding limit seat are bolted together, and a sealing ring is provided between the nozzle fixing seat and the sliding limit seat.

[0010] Optionally, a thrust bearing may also be included, which is disposed between the spring and the sliding limit seat.

[0011] Optionally, the fixed base includes a base plate, side plates, a bracket, and a support plate. The base plate and side plates are fixedly connected to the bracket, and the hollow motor is fixed on the side plate. The support plate is fixed on the side plate, and the pressure sensor is fixed on the support plate.

[0012] Optionally, the output shaft of the hollow motor is equipped with an adapter flange, and the hollow adapter shaft and the adapter flange are fixedly connected.

[0013] Optionally, a bushing is also provided between the spring and the pressure sensor.

[0014] In summary, this application connects to an external vacuum machine via a rotary joint and transmits vacuum suction to the nozzle assembly through a hollow motor and a hollow adapter shaft, thereby achieving vacuum adsorption. The hollow motor allows the nozzle assembly to rotate, increasing the applicability of the nozzle mechanism. Simultaneously, the sliding connection between the hollow adapter shaft and the nozzle assembly enables sliding, and a spring and pressure sensor continuously monitor the downward pressure of the nozzle, reducing product damage. Furthermore, the pressure sensor is fixed to a base, minimizing sensor movement, reducing wire wear, and extending the sensor's lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a rotary suction nozzle mechanism in Embodiment 1 of this application.

[0016] Figure 2 This is a schematic cross-sectional view of a rotary suction nozzle mechanism in Embodiment 1 of this application.

[0017] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0018] Figure 4 yes Figure 2 A magnified view of part B in the middle section.

[0019] Explanation of reference numerals in the attached drawings: 1. Fixed base; 11. Base plate; 12. Side plate; 13. Bracket; 14. Support plate; 2. Nozzle assembly; 21. Nozzle head; 22. Nozzle fixing seat; 221. Air passage; 23. Sliding limit seat; 231. Vent hole; 232. Limit bolt; 233. Sliding ring; 24. Sealing ring; 3. Hollow adapter shaft; 31. Waist-shaped hole; 32. Sliding part; 4. Hollow motor; 41. Adapter flange; 5. Pressure sensor; 6. Spring; 7. Air tube rotary joint; 8. Thrust bearing; 9. Bushing. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4This application will be described in further detail.

[0021] This application discloses a rotary suction nozzle mechanism. (Refer to...) Figure 1 and Figure 2 The rotary suction nozzle mechanism includes a fixed base 1, a suction nozzle assembly 2, a hollow adapter shaft 3, a hollow motor 4, a pressure sensor 5, a spring 6, and an air tube rotary joint 7. The hollow motor 4 is fixed to the fixed base 1, the hollow adapter shaft 3 is fixed to the output shaft of the hollow motor 4, the suction nozzle assembly 2 is slidably mounted on the hollow adapter shaft 3, and the air tube rotary joint 7 is located at the end of the output shaft of the hollow motor 4 away from the suction nozzle assembly 2. The air passages between the air tube rotary joint 7, the hollow motor 4, the hollow adapter shaft 3, and the suction nozzle assembly 2 are interconnected.

[0022] In use, the fixed base 1 can be fixedly mounted on one of the moving ends of the robotic arm or multi-dimensional motion platform, thereby driving the rotary suction nozzle mechanism to move in space. The hollow motor 4 can drive the suction nozzle assembly 2 to rotate itself, making it easier to pick up and put down materials. Through the air pipe rotary joint 7, some external vacuum equipment can be connected, and through the entire air path, the suction nozzle assembly 2 can generate suction force.

[0023] Reference Figure 2 and Figure 3 The fixed base 1 includes a base plate 11, a side plate 12, a bracket 13, and support plates 14. The bracket 13 is L-shaped, and there are two brackets 13. The base plate 11 and the side plate 12 are fixed together by the two brackets 13, making the base plate 11 and the side plate 12 perpendicular to each other. The end face where the output shaft of the hollow motor 4 is located is fixed to the side plate 12. Two support plates 14 are also provided, located on opposite sides of the side plate 12. The pressure sensor 5 is clamped and fixed between the two support plates 14, so that the pressure sensor 5 and the fixed base 1 are jointly fixed.

[0024] A transition flange 41 is fixedly installed on the output shaft of the hollow motor 4; the hollow transition shaft 3 is fixedly connected to the output shaft of the hollow motor 4 through the transition flange 41. Specifically, a clamp is installed on the output shaft of the hollow motor 4, and the transition flange 41 is fixedly connected to the clamp by bolts, while the hollow transition shaft 3 is also fixedly connected to the transition flange 41 by bolts.

[0025] The hollow adapter shaft 3 consists of two parts: a disc and a rod. The rod is hollow inside, as is the output shaft of the hollow motor 4. When the hollow adapter shaft 3 and the output shaft of the hollow motor 4 are fixedly connected, the air passages inside the output shaft and the rod are interconnected, as are the air passages between them and the air pipe rotary joint 7.

[0026] Reference Figures 2 to 4The suction nozzle assembly 2 is provided with a vent 231, and the hollow adapter shaft 3 is disposed within the vent 231, and the hollow adapter shaft 3 and the suction nozzle assembly 2 are slidably connected. A spring 6 is sleeved on the hollow adapter shaft 3, with its two ends abutting against the suction nozzle assembly 2 and the pressure sensor 5, respectively. When the suction nozzle assembly 2 presses down to suck up material, sliding occurs between the suction nozzle assembly 2 and the hollow adapter shaft 3, and the spring 6 is compressed. The pressure sensor 5 detects the magnitude of the downward pressure.

[0027] To reduce rotational wear on the pressure sensor 5 and the nozzle assembly 2 caused by the spring 6, a bushing 9 is provided between the spring 6 and the pressure sensor 5. The spring 6 exerts pressure on the pressure sensor 5 by abutting against the bushing 9. A thrust bearing 8 is provided between the spring 6 and the nozzle assembly 2. The thrust bearing 8 bears the axial force of the spring 6, i.e., the compressive force on the nozzle assembly 2, thus reducing friction on the nozzle assembly 2.

[0028] The suction nozzle assembly 2 includes a suction nozzle head 21, a suction nozzle mounting base 22, and a sliding limit seat 23. Four suction nozzle heads 21 are provided, and each of the four suction nozzle heads 21 is fixedly connected to the suction nozzle mounting base 22. The suction nozzle mounting base 22 and the sliding limit seat 23 are also fixedly connected, in this example using bolts. An air passage 221 is provided inside the suction nozzle mounting base 22, and a vent hole 231 is provided in the sliding limit seat 23. After the suction nozzle heads 21, the suction nozzle mounting base 22, and the sliding limit seat 23 are fixed together, the suction nozzle heads 21, the air passage 221, and the vent hole 231 are interconnected. This allows the vacuum suction from the air tube rotary joint 7 to reach each suction nozzle head 21 through the output shaft of the hollow motor 4, the hollow adapter shaft 3, the sliding limit seat 23, and the suction nozzle mounting base 22.

[0029] A circular groove is provided at one end of the sliding limit seat 23 near the hollow motor 4, and the thrust bearing 8 is placed in the circular groove to fix its position. Threaded holes are provided on two opposite sides of the sliding limit seat 23, and limit bolts 232 are threaded into these holes. Two oblong holes 31 are symmetrically arranged on the circumference of the hollow adapter shaft 3, and the length of the two oblong holes 31 is the same as the length of the hollow adapter shaft 3. When the hollow adapter shaft 3 is slidably positioned within the vent hole 231, the limit bolts 232 can be adjusted to extend into the oblong holes 31, thereby limiting the axial movement of the hollow adapter shaft 3.

[0030] To improve vacuum suction force, a sliding ring 233 is provided on the side wall of the vent 231 near the nozzle fixing seat 22, and a sliding part 32 is provided at the end of the hollow adapter shaft 3 away from the hollow motor 4. The diameter of the sliding part 32 is smaller than the diameter of the round rod in the hollow adapter shaft 3, and the inner diameter of the sliding ring 233 is also smaller than the inner diameter of the vent 231. The sliding part 32 and the sliding ring 233 are fitted with a clearance. By setting the sliding ring 233 and the sliding part 32, compared to the fit between the vent 231 and the round rod in the hollow adapter shaft 3, the overall clearance space on the periphery is smaller, which better ensures that the vacuum suction force does not leak too much, thus guaranteeing the quality of the vacuum suction force.

[0031] A sealing ring 24 is also provided between the nozzle fixing seat 22 and the sliding limit seat 23. The sealing ring 24 is used to further improve the sealing of the air passage 221 between the nozzle fixing seat 22 and the sliding limit seat 23, thereby ensuring the stability of the vacuum suction.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary suction nozzle mechanism, characterized in that, include: The device comprises a fixed base (1), a suction nozzle assembly (2), a hollow adapter shaft (3), a hollow motor (4), a pressure sensor (5), and a spring (6). The hollow motor (4) and the pressure sensor (5) are both fixed on the fixed base (1), and the hollow adapter shaft (3) is connected to the output shaft of the hollow motor (4). The suction nozzle assembly (2) is provided with a vent hole (231), and the hollow adapter shaft (3) is slidably disposed in the vent hole (231). The spring (6) is sleeved on the hollow adapter shaft (3), and the two ends of the spring (6) abut against the fixed base (1) and the suction nozzle assembly (2) respectively. The side of the output shaft of the hollow motor (4) away from the suction nozzle assembly (2) is connected to an air tube rotary joint (7).

2. The rotary suction nozzle mechanism according to claim 1, characterized in that: The nozzle assembly (2) includes multiple nozzle heads (21), a nozzle fixing seat (22), and a sliding limiting seat (23). The nozzle fixing seat (22) is provided with an air passage (221), and the air vent (231) is provided in the sliding limiting seat (23). The air passage (221), the air vent (231), and the multiple nozzle heads (21) are connected. The hollow adapter shaft (3) is provided with a waist-shaped hole (31) on its periphery, and the sliding limiting seat (23) is provided with a limiting bolt (232) that mates with the waist-shaped hole (31).

3. The rotary suction nozzle mechanism according to claim 2, characterized in that: The hollow adapter shaft (3) has a sliding joint (32) at one end away from the hollow motor (4), and a sliding ring (233) is provided on the side wall of the vent (231) near the nozzle fixing seat (22). The sliding joint (32) and the sliding ring (233) are fitted with a clearance.

4. The rotary suction nozzle mechanism according to claim 2, characterized in that: The nozzle fixing seat (22) and the sliding limiting seat (23) are bolted together, and a sealing ring (24) is provided between the nozzle fixing seat (22) and the sliding limiting seat (23).

5. The rotary suction nozzle mechanism according to claim 2, characterized in that: It also includes a thrust bearing (8), which is disposed between the spring (6) and the sliding limit seat (23).

6. The rotary suction nozzle mechanism according to claim 1, characterized in that: The fixed base (1) includes a base plate (11), a side plate (12), a bracket (13) and a support plate (14). The base plate (11) and the side plate (12) are both fixedly connected to the bracket (13). The hollow motor (4) is fixed on the side plate (12). The support plate (14) is fixed on the side plate (12). The pressure sensor (5) is fixed on the support plate (14).

7. The rotary suction nozzle mechanism according to claim 1, characterized in that: The output shaft of the hollow motor (4) is provided with a transition flange (41), and the hollow transition shaft (3) and the transition flange (41) are fixedly connected.

8. The rotary suction nozzle mechanism according to claim 1, characterized in that: A bushing (9) is also provided between the spring (6) and the pressure sensor (5).

Images