Pushing mechanism of nut tapping machine

Abstract

The invention discloses a nut tapping machine pushing mechanism which comprises a feeding mechanism, a feeding channel, a mounting plate, a pushing groove body, an air cylinder, a servo motor, a rotating shaft, a pushing assembly, a guide groove, a visual recognition system and a control device. A reversing part is arranged at the tail end of the feeding channel, the reversing part is composed of a material bearing plate and a baffle, the material bearing plate is horizontally arranged, a camera of a visual recognition system is arranged over the material bearing plate, and the vertically-arranged baffle is arranged at the end, away from the feeding channel, of the material bearing plate; the servo motor, the rotating shaft, the pushing assembly and the visual recognition system are matched, so that the pushing assembly can adjust a nut with a flange on the upper portion to the nut with the flange on the lower portion, the pushing mechanism has the nut posture adjusting function, and the device can be used for flange nut production and has better adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, in particular to the technical field of nuts. Background Art

[0002] In general, nuts are tapped with internal threads using a nut tapping machine. A nut tapping machine is a type of machining equipment that processes internal threads, screws, or threads on the inner side of holes of various specifications of parts such as nuts and flanges with through holes or blind holes. Its function is like tapping internal threads with a tap. The nut tapping machine requires a feeding device to feed the material, and then a transfer mechanism is used to transfer the nut at the end of the feeding device to the tapping area.

[0003] Existing patent CN221269924U discloses a feeding mechanism for a nut tapping machine, which can arrange and discharge nuts, but cannot unify nuts with flanges so that the flanges face downward for discharge, and has a narrow scope of application.

[0004] Existing patent CN206550452U discloses a nut tapping machine pushing mechanism, which can push the nut to the tapping position, but cannot adjust the posture of the nut. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and propose a nut tapping machine pushing mechanism, which can push a nut with a flange to the tapping position with the flange facing downward, so that the device has good adaptability.

[0006] To achieve the above-mentioned purpose, the present invention proposes a pushing mechanism of a nut tapping machine, including a feeding mechanism, a feeding channel, a mounting plate, a pushing trough body, a cylinder, a servo motor, a rotating shaft, a pushing assembly, a guide groove, a visual recognition system and a control device. The feeding mechanism includes a feeding channel for conveying nuts, and one end of the nut includes a flange, and a reversing part is provided at the end of the feeding channel, and the reversing part is composed of a receiving plate and a baffle. The receiving plate is horizontally arranged, and a camera of a visual recognition system is provided directly on the receiving plate. A vertically arranged baffle is provided at the end of the receiving plate away from the feeding channel, and the mounting plate and the pushing trough body are respectively connected on both sides of the receiving plate, the inner bottom wall of the pushing trough body is flush with the upper end face of the mounting plate, and one inner side wall of the pushing trough body is in the same vertical plane as the end end face of the feeding channel, and the other inner side wall of the pushing trough body and the baffle face the feeding channel side. Located on the same vertical plane, the upper end surface of the mounting plate is flush with the upper end surface of the material receiving plate, and a cylinder is installed on the mounting plate. The piston rod of the cylinder is connected to a servo motor, and the servo motor is connected to a rotating shaft. A push-pull assembly in a horizontal U shape is installed at the end of the rotating shaft. The push-pull assembly consists of a push plate and a limit plate. The push plate is arranged vertically, and horizontal limit plates are fixed at the upper and lower ends of the push plate. The guide groove extends from the mounting plate along the length direction of the pushing trough body to the end of the bottom wall of the pushing trough body. The guide groove is adapted to the limit plate. The limit plate located below the pushing assembly is embedded in the guide groove. A downwardly recessed flip groove is provided on the bottom wall of the pushing trough body. The bottom wall of the flip groove is lower than the bottom wall of the guide groove. The length of the flip groove is greater than the length of the limit plate. The feeding mechanism, cylinder, servo motor, and visual recognition system are all controlled by a control device.

[0007] Preferably, the feeding mechanism is a vibrating plate, the feeding channel is inclined downward, the end of the feeding channel is a horizontal section with one end horizontally set, the cross-section of the feeding channel is rectangular, and when the nut is located in the horizontal section of the feeding channel, the distance between the top wall of the feeding channel and the top of the nut is less than the thickness of the flange.

[0008] Preferably, an observation notch is provided on the top wall of the feeding channel, and the observation notch extends from the feeding end of the feeding channel to the end of the feeding channel along the extension direction of the feeding channel.

[0009] Preferably, the distance between the two inner side walls of the push chute body is 1 mm to 2 mm larger than the outer diameter of the flange of the nut.

[0010] Preferably, the mounting plate, the material receiving plate and the bottom wall of the material pushing trough body are an integrated structure.

[0011] Preferably, an arc-shaped limiting groove is provided on the side of the baffle facing the feeding channel.

[0012] Preferably, the side wall of the turnover groove away from the mounting plate is inclined from bottom to top along the direction away from the mounting plate.

[0013] Preferably, the distance between the inner bottom wall of the flip groove and the axis of the rotating shaft is 1 / 3-2 / 3 of the outer diameter of the nut flange.

[0014] Preferably, a guide block adapted to the guide groove is provided at the bottom of the servo motor, and the guide block is embedded in the guide groove.

[0015] Beneficial effects of the present invention: The present invention combines a servo motor, a rotating shaft, a pushing assembly, and a visual recognition system, so that the pushing assembly can adjust the nut with the flange on top to the nut with the flange on the bottom, so that the pushing mechanism has a nut posture adjustment function, so that the device can be used for the production of flange nuts and has better adaptability.

[0016] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the pushing mechanism of the nut tapping machine of the present invention; Figure 2 It is a top view of the pushing mechanism of the nut tapping machine of the present invention.

[0018] In the figure: 1-feeding mechanism, 2-receiving plate, 3-mounting plate, 4-pushing trough, 5-guide groove, 6-visual recognition system, 10-feeding channel, 11-observation notch, 20-baffle, 21-arc-shaped limit groove, 30-cylinder, 31-servo motor, 32-guide block, 33-rotating shaft, 34-push plate, 35-limiting plate, 40-flip groove. DETAILED DESCRIPTION

[0019] Example 1: See Figure 1 、 Figure 2 The pushing mechanism of the nut tapping machine of the present invention includes a feeding mechanism 1, a feeding channel 10, a mounting plate 3, a pushing trough body 4, a cylinder 30, a servo motor 31, a rotating shaft 33, a pushing assembly, a guide groove 5, a visual recognition system 6 and a control device. The feeding mechanism 1 includes a feeding channel 10 for conveying nuts, and one end of the nut includes a flange.

[0020] A reversing portion is provided at the end of the feeding channel 10, and the reversing portion is composed of a receiving plate 2 and a baffle 20. The receiving plate 2 is horizontally arranged, and a camera of a visual recognition system 6 is provided directly on the receiving plate 2. The visual recognition system 6 is used to identify whether the flange is at the upper end of the nut. A vertically arranged baffle 20 is provided at the end of the receiving plate 2 away from the feeding channel 10, and a mounting plate 3 and a pushing trough body 4 are respectively connected to both sides of the receiving plate 2.

[0021] The inner bottom wall of the push trough body 4 is flush with the upper end face of the mounting plate 3, one inner side wall of the push trough body 4 is located on the same vertical plane as the end face of the feeding channel 10, and the other inner side wall of the push trough body 4 is located on the same vertical plane as the side of the baffle 20 facing the feeding channel 10.

[0022] The upper end surface of the mounting plate 3 is flush with the upper end surface of the material receiving plate 2. A cylinder 30 is installed on the mounting plate 3. The piston rod of the cylinder 30 is connected to a servo motor 31. The servo motor 31 is connected to a rotating shaft 33. A push-pull assembly in a horizontal U shape is installed at the end of the rotating shaft 33. The push-pull assembly consists of a push plate 34 and a limit plate 35. The push plate 34 is vertically arranged. The upper and lower ends of the push plate 34 are fixed with horizontally arranged limit plates 35. The distance between the two limit plates 35 is 1mm-2mm greater than the height of the wall nut.

[0023] The guide groove 5 extends from the mounting plate 3 along the length direction of the pushing trough body 4 to the end of the inner bottom wall of the pushing trough body 4. The guide groove 5 is adapted to the limit plate 35. The limit plate 35 located below the pushing assembly is embedded in the guide groove 5. A downwardly recessed flip groove 40 is provided on the inner bottom wall of the pushing trough body 4. The bottom wall of the flip groove 40 is lower than the bottom wall of the guide groove 5. The length of the flip groove 40 is greater than the length of the limit plate 35.

[0024] The feeding mechanism 1 , the air cylinder 30 , the servo motor 31 , and the visual recognition system 6 are all controlled by a control device.

[0025] The distance between the two inner side walls of the pushing chute body 4 is 1 mm to 2 mm larger than the outer diameter of the flange of the nut.

[0026] The mounting plate 3, the material receiving plate 2 and the bottom wall of the material pushing trough body 4 are an integrated structure.

[0027] Example 2: The feeding mechanism 1 is a vibrating plate, the feeding channel 10 is inclined downward, the end of the feeding channel 10 is a horizontal section with one end horizontally set, the cross-section of the feeding channel 10 is rectangular, and when the nut is located in the horizontal section of the feeding channel 10, the distance between the top wall of the feeding channel 10 and the top of the nut is less than the thickness of the flange.

[0028] An observation notch 11 is provided on the top wall of the feeding channel 10 , and the observation notch 11 extends from the feeding end of the feeding channel 10 along the extension direction of the feeding channel 10 to the end of the feeding channel 10 .

[0029] Example 3: In order to ensure that the nut does not move horizontally when not pushed after being blocked by the baffle 20, an arc-shaped limiting groove 21 is provided on the side of the baffle 20 facing the feeding channel 10, and the diameter of the arc-shaped limiting groove 21 is greater than or equal to the diameter of the flange.

[0030] Example 4: In order to ensure that the nut will not be separated from the pusher assembly during the turning process, the side wall of the turning groove 40 away from the mounting plate 3 is inclined from bottom to top along the direction away from the mounting plate 3.

[0031] The distance between the inner bottom wall of the flip groove 40 and the axis of the rotating shaft 33 is 1 / 3-2 / 3 of the outer diameter of the nut flange.

[0032] Embodiment 5: In order to ensure that the servo motor 31 can be effectively supported while being movable, a guide block 32 adapted to the guide groove 5 is provided at the bottom of the servo motor 31 , and the guide block 32 is embedded in the guide groove 5 .

[0033] Working process of the present invention: During the operation of the nut tapping machine pushing mechanism of the present invention, the nut leaves the discharge end of the feeding channel 10 of the feeding mechanism 1 and comes onto the receiving plate 2. The nut is blocked by the baffle 20, and the visual recognition system 6 identifies whether the flange is at the upper end of the nut.

[0034] If the flange is at the lower end, the cylinder 30 pushes the servo motor 31, the rotating shaft 33 and the push assembly to move together, and the push-pull assembly pushes the nut on the receiving plate 2 until the nut leaves the push chute 4 and enters the tapping part of the tapping machine, and then the cylinder 20 resets. It should be pointed out that the push-pull chute 4 is connected to the tapping part of the tapping machine, and the tapping part is provided with an avoidance groove adapted to the limit plate.

[0035] If the flange is at the upper end, the cylinder 30 pushes the servo motor 31, the rotating shaft 33 and the pushing assembly to move together, and the push-pull assembly pushes the nut on the receiving plate 2. When the push-pull assembly is completely located at the flip groove 40, the cylinder 20 stops working, and the servo motor 31 drives the rotating shaft 33 to rotate half a circle, and the nut also flips half a circle. The nut is adjusted to the flange at the upper end, and then the cylinder 20 continues to work to push the nut until the nut leaves the pushing trough body 4 and enters the tapping part of the tapping machine, and then the cylinder 20 resets.

[0036] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. The pushing mechanism of the nut tapping machine is characterized by: The invention comprises a feeding mechanism (1), a feeding channel (10), a mounting plate (3), a pushing trough body (4), a cylinder (30), a servo motor (31), a rotating shaft (33), a pushing assembly, a guide groove (5), a visual recognition system (6) and a control device, wherein the feeding mechanism (1) comprises a feeding channel (10) for conveying nuts, one end of the nut comprises a flange, a reversing portion is provided at the end of the feeding channel (10), and the reversing portion is composed of a receiving plate (2) and a baffle (20), the receiving plate (2) is horizontally arranged, and a visual recognition system is provided on the receiving plate (2). The camera of the recognition system (6) is provided with a vertical baffle (20) at the end of the material receiving plate (2) away from the material feeding channel (10), and the two sides of the material receiving plate (2) are respectively connected with the mounting plate (3) and the material pushing trough body (4), the inner bottom wall of the material pushing trough body (4) is flush with the upper end face of the mounting plate (3), one inner side wall of the material pushing trough body (4) and the end face of the material feeding channel (10) are located on the same vertical plane, and the other inner side wall of the material pushing trough body (4) and the side of the baffle (20) facing the material feeding channel (10) are located on the same vertical plane, and the mounting plate (3) is connected to the mounting plate (3). The upper end surface of the push plate (34) is flush with the upper end surface of the material receiving plate (2). A cylinder (30) is installed on the mounting plate (3). The piston rod of the cylinder (30) is connected to a servo motor (31). The servo motor (31) is connected to a rotating shaft (33). A push-pull assembly in a horizontal U shape is installed at the end of the rotating shaft (33). The push-pull assembly consists of a push plate (34) and a limit plate (35). The push plate (34) is vertically arranged. The upper and lower ends of the push plate (34) are fixed with a horizontal limit plate (35). The guide groove (5) extends from the mounting plate (3) along the push trough body ( 4) extends in the longitudinal direction to the end of the inner bottom wall of the pushing trough body (4), the guide groove (5) is adapted to the limit plate (35), and the limit plate (35) located below the pushing assembly is embedded in the guide groove (5). A downwardly recessed flip groove (40) is provided on the inner bottom wall of the pushing trough body (4), the bottom wall of the flip groove (40) is lower than the bottom wall of the guide groove (5), and the length of the flip groove (40) is greater than the length of the limit plate (35). The feeding mechanism (1), the cylinder (30), the servo motor (31), and the visual recognition system (6) are all controlled by the control device.

2. The nut tapping machine pushing mechanism according to claim 1, characterized in that: The feeding mechanism (1) is a vibrating plate, the feeding channel (10) is inclined downward, the end of the feeding channel (10) is a horizontal section with one end horizontally arranged, the cross section of the feeding channel (10) is rectangular, and when the nut is located in the horizontal section of the feeding channel (10), the distance between the top wall of the feeding channel (10) and the top of the nut is less than the thickness of the flange.

3. The nut tapping machine pushing mechanism according to claim 1, characterized in that: An observation notch (11) is provided on the top wall of the feeding channel (10), and the observation notch (11) extends from the feeding end of the feeding channel (10) along the extension direction of the feeding channel (10) to the end of the feeding channel (10).

4. The nut tapping machine pushing mechanism according to claim 1, characterized in that: The distance between the two inner side walls of the pushing trough body (4) is 1 mm to 2 mm larger than the outer diameter of the flange of the nut.

5. The nut tapping machine pushing mechanism according to claim 1, characterized in that: The mounting plate (3), the material receiving plate (2) and the bottom wall of the material pushing trough body (4) are an integrated structure.

6. The nut tapping machine pushing mechanism according to claim 1, characterized in that: An arc-shaped limiting groove (21) is provided on the side of the baffle (20) facing the feeding channel (10).

7. The nut tapping machine pushing mechanism according to claim 1, characterized in that: The side wall of the turnover groove (40) away from the mounting plate (3) is inclined from bottom to top along a direction away from the mounting plate (3).

8. The nut tapping machine pushing mechanism according to claim 1, characterized in that: The distance between the inner bottom wall of the turnover groove (40) and the axis of the rotating shaft (33) is 1 / 3-2 / 3 of the outer diameter of the nut flange.

9. The nut tapping machine pushing mechanism according to claim 1, characterized in that: A guide block (32) adapted to the guide groove (5) is provided at the bottom of the servo motor (31), and the guide block (32) is embedded in the guide groove (5).

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