Quick-change suction nozzle mechanism

Abstract

The invention discloses a quick-change suction nozzle mechanism which comprises a fixing plate, a ventilation connector, a shaft core, a limiting block, a ball, a connecting piece, a shell, a first compression spring and a suction nozzle, the top of the shaft core is connected with the bottom of the fixing plate, the ventilation connector is connected with the side face of the fixing plate, and the ventilation connector communicates with the top end of a connecting hole through a gas pipeline in the fixing plate; the ball can protrude out of the inner wall of the connecting hole or the outer wall of the shaft core, the limiting block is annular, the outer ring of the limiting block is fixedly connected to the inner wall of the shell, the shaft core is sleeved with the first compression spring, the connecting piece is provided with a vent hole in the axial direction in a penetrating mode, and a slope is arranged on the top wall of the connecting groove. The balls can retract into the positioning holes under extrusion of the slopes and protrude out of the outer wall of the shaft core. The suction nozzle can be disassembled and assembled without a tool.

Description

Technical Field

[0001] This invention relates to a nozzle mechanism, and more particularly to a quick-change nozzle mechanism. Background Technology

[0002] With the development of the times, industrial production technology is also developing rapidly, and automated equipment is being used more and more in industrial production. Currently, suction equipment used to adsorb workpieces usually adapts to different sizes of workpieces by replacing different models of suction nozzles. However, existing suction nozzle fixing mechanisms usually require tools to disassemble and assemble the nozzles, resulting in low disassembly and assembly efficiency. This makes them uncompetitive in industrial fields that emphasize cost reduction and efficiency improvement, which is not conducive to large-scale promotion and industrialized production. Summary of the Invention

[0003] To overcome the above-mentioned defects, the present invention provides a quick-change nozzle mechanism, which has the advantage of being able to disassemble and assemble the nozzle without relying on tools.

[0004] The technical solution adopted by this invention to solve its technical problem is: a quick-change nozzle mechanism, comprising: a fixed plate, a vent connector, a shaft, a limiting block, ball bearings, a connector, a housing, a first compression spring, and a nozzle. The top of the shaft is connected to the bottom of the fixed plate, the vent connector is connected to the side of the fixed plate, and a connecting hole is formed through the shaft along its axial direction. The vent connector is connected to the top of the connecting hole through a gas pipe inside the fixed plate. A positioning hole is formed at the bottom of the shaft along its radial direction. The two ends of the positioning hole are respectively connected to the inner wall of the connecting hole and the outer wall of the shaft. The ball bearing is disposed in the positioning hole and can move within the positioning hole. The ball bearing can protrude from the inner wall of the connecting hole or the outer wall of the shaft. The limiting block is annular, with its inner ring slidably sleeved on the shaft, and its outer ring fixedly connected to the inner wall of the housing. The first compression spring is sleeved on the shaft, and the two ends of the first compression spring... The ends respectively abut against the bottom surface of the fixing plate and the top surface of the limiting block. The connector has a vent hole through it along the axial direction. The top of the connector has a connecting groove around its circumference. The top wall of the connecting groove has a slope. The top of the connector is detachably inserted into the bottom of the connecting hole. The top of the suction nozzle is inserted into the bottom of the vent hole. The limiting block can approach the positioning hole under the drive of the first compression spring. The inner ring of the limiting block can squeeze the ball protruding from the outer wall of the shaft core. The ball can retract into the positioning hole and protrude from the inner wall of the connecting hole under the squeeze of the limiting block. The ball protruding from the inner wall of the connecting hole can be inserted into the connecting groove. The outer shell can approach the fixing plate under the drive of external force and drive the limiting block away from the positioning hole. The connector can move away from the shaft core under the drive of external force and drive the slope to squeeze the ball. The ball can retract into the positioning hole and protrude from the outer wall of the shaft core under the squeeze of the slope.

[0005] Optionally, the top of the fixing plate is provided with a threaded hole for fixing. The gas pipeline inside the fixing plate includes an air inlet and an air outlet. The air outlet is located on the side of the fixing plate, and the air inlet is located on the bottom surface of the fixing plate. The first end of the vent connector is detachably connected to the air outlet of the gas pipeline by a thread, and the second end of the vent connector is detachably connected to the first end of the gas pipe by a clamp. The second end of the gas pipe is connected to the vacuum generator.

[0006] Optionally, the top end of the shaft is fixed to the bottom surface of the fixing plate with adhesive, the top end of the connecting hole is connected to the air inlet of the gas pipeline, and the outer ring of the limiting block is fixed to the inner wall of the outer shell with adhesive.

[0007] Optionally, the top of the connector is provided with an anti-rotation groove, and the inner wall of the connecting hole is provided with a positioning block protruding radially, which can be inserted into the anti-rotation groove.

[0008] Optionally, the sidewall of the connector is provided with a fixing platform protruding radially, and the sidewall of the fixing platform is provided with a threaded hole. The sidewall of the suction nozzle is provided with a limiting groove along the axial direction of the suction nozzle. The limiting screw is threadedly connected to the threaded hole. The top end of the suction nozzle is slidably inserted into the vent hole. The end of the limiting screw can extend into the limiting groove and abut against the top wall or bottom wall of the limiting groove.

[0009] Optionally, a second compression spring is also included. A positioning platform is provided on the side wall of the suction nozzle in a radial direction. The second compression spring is sleeved on the suction nozzle, and the two ends of the second compression spring abut against the bottom surface of the fixing platform and the top surface of the positioning platform, respectively.

[0010] Optionally, the number of positioning holes and balls is four, with the four positioning holes arranged circumferentially around the shaft core, and one positioning hole corresponding to one ball.

[0011] Optionally, the top of the fixed platform can abut against the bottom of the shaft core.

[0012] Optionally, a limiting ring is provided on the outer peripheral wall of the bottom end of the shaft core in a radially protruding manner, and the bottom end of the limiting block can abut against the top end of the limiting ring.

[0013] The beneficial technical effects of this invention are as follows: The quick-change nozzle mechanism includes: a fixing plate, a vent connector, a shaft, a limiting block, a ball bearing, a connector, a housing, a first compression spring, and a nozzle. When the nozzle needs to be fixed, the housing is first lifted upwards. At this time, the housing drives the limiting block away from the positioning hole, and the ball bearing is in a movable state. Then, the top end of the connector is inserted into the bottom end of the connection hole. Then, the housing is released, and the limiting block approaches the positioning hole under the drive of the first compression spring. The inner ring of the limiting block can cover the positioning hole and squeeze the ball bearing. Under the squeezing of the limiting block, the ball bearing protrudes out of the inner part of the connection hole. The ball bearing protruding from the inner wall of the connecting hole can be engaged in the connecting groove. At this time, the connector and the shaft are axially fixed. When the nozzle needs to be removed, the outer shell is lifted upwards. At this time, the limiting block moves away from the positioning hole, and the ball bearing is in a movable state. Then, the connector is pulled downwards. Because the top wall of the connecting groove is provided with a slope, the slope can squeeze the ball bearing. Under the pressure of the slope, the ball bearing retracts into the positioning hole and protrudes from the outer wall of the shaft. At this time, the ball bearing disengages from the connecting groove. Without the ball bearing fixing it, the connector is in a movable state and can disengage from the connecting hole. This achieves nozzle disassembly and assembly without the need for tools. It has the advantage of disassembling and assembling the nozzle without the need for tools. Attached Figure Description

[0014] Figure 1 This is a perspective view of the entire machine of the present invention;

[0015] Figure 2 This is a three-dimensional exploded view of the entire machine of the present invention;

[0016] Figure 3 This is a perspective view of the second compression spring, connector, and suction nozzle of the present invention;

[0017] in:

[0018] 1. Fixing plate; 2. Vent connector; 3. Shaft core; 4. Limiting block; 5. Ball bearing; 6. Connecting piece; 7. Housing; 8. First compression spring; 9. Suction nozzle; 10. Clamp; 11. Limiting screw; 12. Second compression spring; 13. Connecting groove; 14. Positioning hole; 15. Positioning platform; 16. Anti-rotation groove. Detailed Implementation

[0019] In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] This specific embodiment details the quick-change nozzle mechanism described in this application, such as... Figures 1-3As shown, the quick-change nozzle mechanism includes: a fixed plate 1, an air connector 2, a shaft 3, a limiting block 4, a ball bearing 5, a connecting piece 6, a housing 7, a first compression spring 8, and a nozzle 9. The top of the shaft 3 is connected to the bottom of the fixed plate 1, and the air connector 2 is connected to the side of the fixed plate 1. A connecting hole is provided through the shaft 3 along its axial direction. The air connector 2 is connected to the top of the connecting hole through a gas pipe inside the fixed plate 1. A positioning hole 14 is provided at the bottom of the shaft 3 along its radial direction. The two ends of the positioning hole 14 are respectively connected to the inner wall of the connecting hole and the outer wall of the shaft 3. The ball bearing 5 is disposed in the positioning hole 14 and can move within the positioning hole 14. The ball bearing 5 can protrude from the inner wall of the connecting hole or the outer wall of the shaft 3. The limiting block 4 is annular. The inner ring of the limiting block 4 is slidably sleeved on the shaft 3, and the outer ring of the limiting block 4 is fixedly connected to the inner wall of the housing 7. The first compression spring 8 is sleeved on the shaft 3, and the two ends of the first compression spring 8 abut against the fixed plate 1. On the bottom surface and the top surface of the limiting block 4, the connecting member 6 has a vent hole through it along the axial direction. The top of the connecting member 6 has a connecting groove 13 around its circumference. The top wall of the connecting groove 13 has a slope. The top of the connecting member 6 is detachably inserted into the bottom of the connecting hole. The top of the suction nozzle 9 is inserted into the bottom of the vent hole. The limiting block 4 can approach the positioning hole 14 under the drive of the first compression spring 8. The inner ring of the limiting block 4 can squeeze the ball 5 protruding from the outer wall of the shaft core 3. The ball 5 can retract into the positioning hole 14 and protrude from the inner wall of the connecting hole under the squeeze of the limiting block 4. The ball 5 protruding from the inner wall of the connecting hole can be inserted into the connecting groove 13. The outer shell 7 can approach the fixing plate 1 under the drive of external force and drive the limiting block 4 away from the positioning hole 14. The connecting member 6 can move away from the shaft core 3 under the drive of external force and drive the slope to squeeze the ball 5. The ball 5 can retract into the positioning hole 14 and protrude from the outer wall of the shaft core 3 under the squeeze of the slope. When the suction nozzle 9 needs to be fixed, first lift the outer shell 7 upwards. At this time, the outer shell 7 drives the limiting block 4 away from the positioning hole 14, and the ball 5 is in a movable state. Then, insert the top of the connector 6 into the bottom of the connecting hole, and then release the outer shell 7. Driven by the first compression spring 8, the limiting block 4 approaches the positioning hole 14. The inner ring of the limiting block 4 can cover the positioning hole 14 and squeeze the ball 5. Under the squeezing of the limiting block 4, the ball 5 protrudes from the inner wall of the connecting hole 14. The ball 5 protruding from the inner wall of the connecting hole 14 can be inserted into the connecting groove 13. At this time, the connector 6... The shaft core 3 is axially fixed. When the nozzle 9 needs to be removed, the outer shell 7 is lifted upwards. At this time, the limiting block 4 moves away from the positioning hole 14, and the ball bearing 5 is in a movable state. Then, the connecting piece 6 is pulled downwards. Since the top wall of the connecting groove 13 is provided with a slope, the slope can squeeze the ball bearing 5. Under the pressure of the slope, the ball bearing 5 retracts into the positioning hole 14 and protrudes from the outer wall of the shaft core 3. At this time, the ball bearing 5 is disengaged from the connecting groove 13. Without the fixing of the ball bearing 5, the connecting piece 6 is in a movable state and can disengage from the connecting hole, thus realizing the nozzle disassembly and assembly without the need for tools. It has the advantage of disassembling and assembling the nozzle without the need for tools.

[0021] Optionally in this embodiment, the top of the fixing plate 1 is provided with a threaded hole for fixing. The gas pipeline inside the fixing plate 1 includes an air inlet and an air outlet. The air outlet is located on the side of the fixing plate 1, and the air inlet is located on the bottom surface of the fixing plate 1. The first end of the vent connector 2 is detachably connected to the air outlet of the gas pipeline by a thread. The second end of the vent connector 2 is detachably connected to the first end of the gas pipe by a clamp 10. The second end of the gas pipe is connected to the vacuum generator.

[0022] Optionally in this embodiment, the top end of the shaft core 3 is fixed to the bottom surface of the fixing plate 1 by adhesive, the top end of the connecting hole is connected to the air inlet of the gas pipeline, and the outer ring of the limiting block 4 is fixed to the inner wall of the outer shell 7 by adhesive.

[0023] Optionally in this embodiment, the top end of the connector 6 is provided with an anti-rotation groove 16, and a positioning block is provided radially protruding from the inner wall of the connecting hole. The positioning block can be engaged in the anti-rotation groove 16. This achieves circumferential fixation of the connector 6 and the shaft core 3, preventing the connector 6 from rotating.

[0024] Optionally, in this embodiment, a fixing platform is provided radially protruding from the side wall of the connector 6. A threaded hole is provided through the side wall of the fixing platform. A limiting groove is provided along the axial direction of the suction nozzle 9 on the side wall. A limiting screw 11 is threaded into the threaded hole. The top end of the suction nozzle 9 is slidably inserted into the vent hole. The end of the limiting screw 11 can extend into the limiting groove and abut against the top or bottom wall of the limiting groove. In this embodiment, when the limiting screw 11 is tightened, the end of the limiting screw 11 can fit tightly against the inner wall of the limiting groove to fix the suction nozzle 9 and the connector 6. When the limiting screw 11 is loosened, the end of the limiting screw 11 can move within the limiting groove to adjust the length of the suction nozzle 9 extending out of the vent hole.

[0025] Optionally, this embodiment also includes a second compression spring 12. A positioning platform 15 is provided radially protruding from the side wall of the suction nozzle 9. The second compression spring 12 is sleeved on the suction nozzle 9, with its two ends abutting against the bottom surface of the fixing platform and the top surface of the positioning platform 15, respectively. The second compression spring 12 can play a buffering role. In this embodiment, if the buffering function is required, the limiting screw 11 needs to be loosened first. This allows the suction nozzle 9 to move away from the connecting piece 6 under the push of the second compression spring 12 until the end of the limiting screw 11 abuts against the top wall of the limiting groove. When the suction nozzle 9 is subjected to pressure, the second compression spring 12 can be compressed to play a buffering role, preventing the suction nozzle 9 from being damaged due to excessive impact when it contacts the workpiece.

[0026] Optionally in this embodiment, the number of positioning holes 14 and ball bearings 5 ​​are both four. The four positioning holes 14 are arranged circumferentially around the shaft core 3, and one positioning hole 14 corresponds to one ball bearing 5.

[0027] Optionally in this embodiment, the top end of the fixed platform can abut against the bottom end of the shaft core 3. The top end of the fixed platform can serve as a limiting point.

[0028] Optionally in this embodiment, a limiting ring is provided radially protruding from the outer peripheral wall of the bottom end of the shaft core 3, and the bottom end of the limiting block 4 can abut against the top end of the limiting ring. The limiting ring can prevent the limiting block 4 from detaching from the bottom end of the shaft core 3. When the bottom end of the limiting block 4 abuts against the top end of the limiting ring, the inner ring of the limiting block 4 can squeeze the ball 5 protruding from the outer wall of the shaft core 3.

[0029] Using the quick-change nozzle mechanism in this embodiment has the advantage of being able to assemble and disassemble the nozzle without relying on tools.

Claims

1. A quick-change mouthpiece mechanism, characterized by, The utility model provides a kind of airway connector, including: fixed plate (1), vent connector (2), shaft core (3), limiting block (4), ball (5), connecting piece (6), shell (7), first compression spring (8) and suction nozzle (9), the top of shaft core (3) is connected the bottom of fixed plate (1), vent connector (2) connects the side of fixed plate (1), and connecting hole is opened along the axial direction of shaft core (3), vent connector (2) is communicated with the top end of connecting hole by gas pipeline inside fixed plate (1), the bottom of shaft core (3) is opened with the radial direction of shaft core (3) and is positioned hole (14), the both ends of positioned hole (14) are communicated with the inner wall of connecting hole and the outer wall of shaft core (3) respectively, ball (5) is arranged in positioned hole (14) and can move in positioned hole (14), ball (5) can protrude from the inner wall of connecting hole or the outer wall of shaft core (3), limiting block (4) is annular, the inner ring of limiting block (4) is slidably sleeved in shaft core (3), the outer ring of limiting block (4) is fixedly connected to the inner wall of shell (7), first compression spring (8) is sleeved in shaft core (3), and the both ends of first compression spring (8) are respectively abutted against the bottom surface of fixed plate (1) and the top surface of limiting block (4), connecting piece (6) is opened with the axial direction and is ventilated with hole, and the top end of connecting piece (6) is provided with a circle of connecting groove (13) around the circumferential direction of connecting piece (6), the top wall of connecting groove (13) is provided with slope, the top end of connecting piece (6) is detachably inserted in the bottom end of connecting hole, the top end of suction nozzle (9) is inserted in the bottom end of ventilated with hole, limiting block (4) can be driven by first compression spring (8) and approach positioned hole (14), the inner ring of limiting block (4) can extrude ball (5) protruding from the outer wall of shaft core (3), ball (5) can be retracted in positioned hole (14) and protrude from the inner wall of connecting hole under the extrusion of limiting block (4), ball (5) protruding from the inner wall of connecting hole can be inserted in connecting groove (13), shell (7) can be driven by external force and approach fixed plate (1) and drive limiting block (4) away from positioned hole (14), connecting piece (6) can be driven by external force and away from shaft core (3) and drive slope extrude ball (5), ball (5) can be retracted in positioned hole (14) and protrude from the outer wall of shaft core (3) under the extrusion of slope. The top of fixed plate (1) is opened with the thread hole for fixing, and the gas pipeline inside fixed plate (1) includes air inlet and air outlet, the air outlet is located in the side of fixed plate (1), the air inlet is located in the bottom of fixed plate (1), the first end of vent connector (2) is detachably communicated with the air outlet of gas pipeline by thread, the second end of vent connector (2) is detachably communicated with the first end of gas tube by clamp (10), and the second end of gas tube is communicated with vacuum generator.

2. Quick-change mouthpiece mechanism according to claim 1, characterized in that: The top end of shaft core (3) is fixed on the bottom of fixed plate (1) by adhesive, the top end of connecting hole is communicated with the air inlet of gas pipeline, and the outer ring of limiting block (4) is fixed on the inner wall of shell (7) by adhesive.

3. Quick-change mouthpiece mechanism according to claim 2, characterized in that: ​ 4. Quick-change mouthpiece mechanism according to claim 3, characterized in that: The top end of the connecting piece (6) is provided with an anti-rotation groove (16), and the inner wall of the connecting hole is provided with a positioning block protruding radially, which can be clamped into the anti-rotation groove (16).

5. Quick-change mouthpiece mechanism according to claim 4, characterized in that: The side wall of the connecting piece (6) is provided with a fixing table protruding radially, the side wall of the fixing table is provided with a threaded hole penetrating through, the side wall of the suction nozzle (9) is provided with a limiting groove along the axial direction of the suction nozzle (9), a limiting screw (11) is threadedly connected to the threaded hole, the top end of the suction nozzle (9) is slidingly inserted into the ventilation hole, the end of the limiting screw (11) can extend into the limiting groove, and the end of the limiting screw (11) can abut against the top wall of the limiting groove or the bottom wall of the limiting groove.

6. Quick-change mouthpiece mechanism according to claim 6, characterized in that: Further comprising a second compression spring (12), the side wall of the suction nozzle (9) is provided with a positioning table (15) protruding radially, and the second compression spring (12) is sleeved on the suction nozzle (9), and the two ends of the second compression spring (12) abut against the bottom surface of the fixing table and the top surface of the positioning table (15) respectively.

7. Quick-change mouthpiece (9) mechanism according to claim 1, characterized in that: The number of the positioning holes (14) and the balls (5) is four, the four positioning holes (14) are arranged at intervals around the circumferential direction of the shaft core (3), and one positioning hole (14) corresponds to one ball (5).

8. The quick-change mouthpiece mechanism of claim 5, wherein: The top end of the fixing table can abut against the bottom end of the shaft core (3).

9. The quick-change mouthpiece mechanism of claim 1, wherein: The outer peripheral wall of the bottom end of the shaft core (3) is provided with a limiting ring protruding radially, and the bottom end of the limiting block (4) can abut against the top end of the limiting ring.

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