Nut feeding and picking device

Abstract

The utility model discloses a nut feeding and picking device which comprises a mechanical arm, a feeding mechanism and a picking mechanism. A charging tray positioning pin is vertically arranged on the surface of the mounting plate; and the material disc mechanism is movably arranged on the mounting plate through the material disc positioning pin, the material disc mechanism comprises a rotatable limiting assembly, and the limiting assembly can abut against the contour surface of the nut to limit the position of the nut so that the mechanical arm can accurately pick up the nut. The limiting assembly is arranged through the nut positioning pin, the hexagonal flange nuts are directly taken through the magnetic sleeve, multiple nuts can be installed at a time, and the nut taking and placing efficiency is improved; and meanwhile, nut feeding operation and automatic tightening operation are separated, and the safety of workers is guaranteed in the automatic production process.

Description

Technical Field

[0001] The utility model relates to the technical field of nut picking and feeding, in particular to a nut feeding and picking device. Background Art

[0002] Hexagonal nuts, the most common type used in industrial production, have a hexagonal shape with a threaded hole in the center. They are used with bolts to secure parts. Depending on the operating conditions, more specialized nuts are also available, such as hexagonal flange nuts, which are often used on smaller mechanical structures that require anti-loosening measures.

[0003] Generally, nuts need to be manually picked up and placed during the installation process. In the automated production process, this manual picking and placing method is obviously inefficient and unsafe.

[0004] In order to solve the drawbacks of manual picking and placing, there are some automatic nut picking and loading devices on the market. However, the nut loading position is fixed, and the nuts are installed and locked at different positions by moving parts, which has great limitations in the working conditions. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a nut feeding and picking device, comprising:

[0006] A manipulator having a sleeve capable of sucking a nut;

[0007] A mounting plate, the surface of which is vertically provided with tray positioning pins; and

[0008] The tray mechanism is movably arranged through the tray positioning pin and the mounting plate. The tray mechanism includes a rotatable limiting component, which can abut against the contour surface of the nut to limit the position of the nut so that the robot can accurately pick up the nut.

[0009] Furthermore, the material tray mechanism also includes a loading tray, which is provided with a plurality of nut positioning pins. The diameter of the nut positioning pins is slightly smaller than the diameter of the internal thread of the nut so that the nut can be easily sleeved on the nut positioning pins.

[0010] Furthermore, each of the nut locating pins is configured with the limiting component.

[0011] Furthermore, the limiting assembly includes a bracket and a limiting block; wherein, the bracket is fixed to the loading tray, and the limiting block is arranged in the middle of the bracket and can rotate around the bracket.

[0012] Furthermore, the bracket has a door-shaped structure.

[0013] Furthermore, an upright weighted portion is provided at the end of the limiting block close to the nut so that the limiting block can fall back to its original position under gravity.

[0014] Furthermore, the end of the limit block close to the nut is further provided with a protrusion that can abut against the contour surface of the nut, and the protrusion is arranged at an angle and forms an acute angle with the weighted portion.

[0015] Furthermore, a groove is provided at the mouth of the sleeve into which the protrusion can be embedded.

[0016] Furthermore, handles are provided at opposite ends of the loading tray, and a through hole is provided on the loading tray to cooperate with the tray positioning pin. The loading tray can be lifted or lowered relative to the mounting plate by holding the handles.

[0017] Furthermore, the sleeve is a magnetic hexagonal sleeve; the mounting plate, the loading tray and the limiting assembly are all made of aluminum alloy.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model configures a limit assembly through a nut locating pin and uses a magnetic sleeve to directly pick up the hexagonal flange nut, so that multiple nuts can be loaded at one time, thereby improving the efficiency of nut loading and placing; at the same time, the nut loading operation is separated from the automatic tightening operation, thereby ensuring the safety of workers in the automated production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure disclosed in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the loading tray disclosed in an embodiment of the present utility model;

[0022] Figure 3 This is a partial structural diagram of the loading tray disclosed in the embodiment of the present utility model, showing a structural diagram of the limit block;

[0023] Figure 4 This is a schematic structural diagram of the mounting plate disclosed in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a sleeve disclosed in an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Mounting plate; 11. Tray positioning pin;

[0027] 2. Loading tray; 20. Nut positioning pin; 21. Limiting assembly; 210. Bracket; 211. Limiting block; 211a. Weighted portion; 211b. Protruding portion; 22. Through hole; 23. Handle;

[0028] 3. Sleeve; 31. Groove. DETAILED DESCRIPTION

[0029] In order to make the technical solution and technical effect of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments.

[0030] The utility model aims to provide a nut feeding and picking device, which can feed multiple nuts at a time and separate the nut feeding operation from the automatic tightening operation. Figure 1 The device mainly includes a mounting plate 1, a tray mechanism and a manipulator. The following is a detailed introduction using a hexagonal flange nut as an example:

[0031] Mounting plate 1: Reference Figure 4 The mounting plate 1 is in a U-shaped structure, and tray positioning pins 11 are vertically arranged on both side surfaces of the mounting plate 1.

[0032] Tray mechanism: The tray mechanism is movably arranged with the tray positioning pin 11 and the mounting plate 1. The tray mechanism includes a rotatable limit assembly 21, which can abut against the contour surface of the nut to limit the position of the nut so that the robot can accurately pick up the nut. Figure 2 The tray mechanism also includes a loading tray 2, which can be loaded with multiple nuts at a time. Handles 23 are provided at opposite ends of the loading tray 2. A through hole 22 is provided on the loading tray 2 to match the tray positioning pin 11, which is used to facilitate the removal and placement of the loading tray 2. Workers can lift or drop the loading tray 2 relative to the mounting plate 1 by holding the handle 23. The loading tray 2 is provided with a number of nut positioning pins 20. The diameter of the nut positioning pins 20 is slightly smaller than the diameter of the internal thread of the nut, so that the nut can be easily sleeved on the nut positioning pins 20. Figure 3, each nut locating pin 20 is equipped with a limiting assembly 21. The limiting assembly 21 includes a bracket 210 and a limiting block 211; wherein, the bracket 210 is fixed to the loading tray 2, and the limiting block 211 is arranged in the middle of the bracket 210 and can rotate around the bracket 210. Preferably, the bracket 210 is a door-shaped structure. An upright weighted portion 211a is provided at the end of the limiting block 211 close to the nut so that the limiting block 211 can fall back to its original position under gravity. The end of the limiting block 211 close to the nut is also provided with a protrusion 211b that can abut against the contour surface of the nut. The protrusion 211b is arranged at an angle and forms an acute angle with the weighted portion 211a. The worker applies force to the end of the limit block 211 away from the nut to make the limit block 211 rotate. At this time, the end of the limit block 211 close to the nut is tilted; the worker then places the nut on the nut positioning pin 20, and the limit block 211 naturally falls under gravity and just abuts the hexagonal contour surface of the nut, which ensures the placement posture of the nut and limits the nut from rotating at will during the material removal process, making it convenient for the robot to take away the nut.

[0033] Sleeve 3: Reference Figure 5 The robot is equipped with a magnetic hexagonal socket 3 capable of absorbing nuts. To prevent interference between sleeve 3 and stop block 211 during the material removal process, a groove 31 is provided at the mouth of sleeve 3, into which protrusion 211b engages. During the material removal process, sleeve 3 removes the nut under magnetic attraction, and stop block 211 is subsequently lifted. Once the nut leaves nut locating pin 20, stop block 211 falls back into place due to gravity.

[0034] Furthermore, in this embodiment, except for the nut locating pin 20, the other parts are made of aluminum alloy. The advantages of this design are: on the one hand, it reduces the overall weight of the device; on the other hand, it avoids interference with the sleeve 3 during the material removal process.

[0035] While working:

[0036] In the first step, the worker holds the handle 23 to remove the loading tray 2 from the mounting plate 1, and lifts the limit block 211. Then, the nut is placed on the nut positioning pin 20. The limit block 211 falls under the action of gravity and just abuts the hexagonal contour surface of the nut.

[0037] In the second step, the loading tray 2 filled with nuts is placed on the mounting plate 1 again. The robot arm equipped with the sleeve 3 approaches the loading tray 2, picks up the nuts one by one and tightens them for installation.

[0038] Step 3: After all the nuts on the loading tray 2 are used up, the worker removes the loading tray 2 and replaces it with a new loading tray 2 filled with nuts, and repeats the above-mentioned material removal and tightening operations.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nut feeding and picking device, characterized in that: include: A manipulator having a sleeve (3) capable of sucking a nut; A mounting plate (1) having tray positioning pins (11) vertically arranged on its surface; and The tray mechanism is movably arranged via the tray positioning pin (11) and the mounting plate (1), and the tray mechanism includes a rotatable limiting component (21). The limiting component (21) can abut against the contour surface of the nut to limit the position of the nut, thereby enabling the manipulator to accurately pick up the nut.

2. The nut loading and picking device according to claim 1, characterized in that: The material tray mechanism further comprises a loading tray (2), wherein the loading tray (2) is provided with a plurality of nut positioning pins (20), wherein the diameter of the nut positioning pins (20) is smaller than the diameter of the internal thread of the nut so that the nut can be easily sleeved on the nut positioning pins (20).

3. The nut loading and picking device according to claim 2, characterized in that: Each of the nut locating pins (20) is equipped with the limiting assembly (21).

4. The nut loading and picking device according to claim 2, characterized in that: The limiting assembly (21) comprises a bracket (210) and a limiting block (211); wherein the bracket (210) is fixed to the loading tray (2), and the limiting block (211) is arranged in the middle of the bracket (210) and can rotate around the bracket (210).

5. The nut loading and picking device according to claim 4, characterized in that: The bracket (210) has a door-shaped structure.

6. The nut loading and picking device according to claim 4, characterized in that: An upright weighted portion (211a) is provided at the end of the limiting block (211) close to the nut so that the limiting block (211) can fall back to its original position due to gravity.

7. The nut loading and picking device according to claim 6, characterized in that: The end of the limiting block (211) close to the nut is further provided with a protruding portion (211b) capable of abutting against the contour surface of the nut, and the protruding portion (211b) is arranged obliquely and forms an acute angle with the weighted portion (211a).

8. The nut loading and picking device according to claim 7, characterized in that: A groove (31) into which the protrusion (211b) can be embedded is provided at the mouth of the sleeve (3).

9. The nut loading and picking device according to claim 2, characterized in that: The loading tray (2) is provided with handles (23) at opposite ends thereof. The loading tray (2) is provided with through holes (22) that match the tray positioning pins (11). The loading tray (2) can be lifted or lowered relative to the mounting plate (1) by holding the handles (23).

10. The nut loading and picking device according to claim 2, characterized in that: The sleeve (3) is a magnetic hexagonal sleeve; the mounting plate (1), the loading tray (2) and the limiting component (21) are all made of aluminum alloy.

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