Automatic feeding nut welding machine

Abstract

The utility model discloses an automatic feeding nut welding machine which comprises a placing frame, a feeding device, a feeding device and a control device. The conveying mechanism is used for conveying the workpieces in the containing frame from the first preset position to the second preset position, the welding mechanism is arranged corresponding to the second preset position, and when the conveying mechanism conveys the workpieces to the second preset position, the welding mechanism welds the workpieces. The workpieces are automatically conveyed to the welding mechanism through the conveying mechanism to be welded, the workpieces are picked up and released through the picking-up piece, automatic feeding is achieved in the whole feeding process, only one small or thin workpiece can be conveyed to the workpiece welding mechanism at a time, the situation that multiple workpieces are placed due to misoperation of workers is avoided, and the production efficiency is improved. The accuracy of the placing position of the workpiece when the workpiece is placed at a welding point is improved, the yield of workpiece welding is improved, in addition, the operation complexity of workers can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, and in particular to an automatic feeding nut welding machine. Background Technology

[0002] In the manufacturing industry, many workpieces are connected by nuts and bolts. The welding of nuts is especially important when sheet metal, thin metal sheets and other parts need to be connected by threads.

[0003] Traditional automatic feeding nut welding machines can only automatically feed nuts. For workpieces that need to be welded to the nuts, manual placement at the welding point is still required. After welding, the workpiece is removed and replaced with a new one. However, for some very small workpieces or thin plate weldments, it is inconvenient to handle them. Multiple weldments may be mistakenly placed during feeding, or the workpiece may not be accurately placed at the welding point, resulting in welding failure or confusion, which seriously affects the quality of the weldment and reduces work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic feeding nut welding machine to solve the problems existing in the prior art. It can automatically feed the workpiece, avoid errors caused by manual feeding, and improve work efficiency and the yield of welded parts.

[0005] This utility model provides an automatic feeding nut welding machine, comprising:

[0006] A placement rack having a receiving space for accommodating workpieces;

[0007] A transport mechanism is available to move along a first preset path. The first preset path has a first preset position and a second preset position. The first preset position corresponds to the placement rack. The transport mechanism is used to transport the workpiece in the placement rack from the first preset position to the second preset position.

[0008] A welding mechanism is provided at the second preset position. When the transport mechanism transports the workpiece to the second preset position, the welding mechanism welds the workpiece.

[0009] In the automatic feeding nut welding machine described above, preferably, the transport mechanism includes a first driving member and a picking member, wherein the first driving member is used to drive the picking member to move along a first preset path, and the picking member is used to pick up and release the workpiece.

[0010] In the automatic feeding nut welding machine described above, preferably, the picking component includes a first cylinder, a cylinder output section, a pneumatic suction cup, and a mounting base. The first cylinder is mounted on the first driving component, the cylinder output section is mounted on the first cylinder, the pneumatic suction cup is positioned corresponding to the first preset position, one end of the mounting base is mounted on the cylinder output section, and the other end of the mounting base is connected to the pneumatic suction cup. The first cylinder is used to drive the cylinder output section to move up and down, and the pneumatic suction cup is used to pick up or release the workpiece.

[0011] In the above-described automatic feeding nut welding machine, preferably, the welding machine mechanism includes a frame, a nut conveying gun, and an electrode head. The nut conveying gun and the electrode head are respectively disposed on the frame. The electrode head is disposed at a second preset position. When the transport component transports the workpiece to the second preset position, the nut conveying gun is used to transport a preset number of nuts to the second preset position, and the electrode head welds the workpiece and the nuts.

[0012] In the automatic feeding nut welding machine described above, preferably, the frame is provided with a base, and the transport mechanism and the placement rack are both disposed on the base.

[0013] In the automatic feeding nut welding machine described above, preferably, a lifting assembly is provided at the bottom of the placement frame, the lifting assembly being used to drive the workpiece to move in the direction of gravity.

[0014] In the automatic feeding nut welding machine described above, preferably, the lifting assembly includes a second cylinder, a pad, and a support plate. The support plate is disposed within the placement frame and is used to support the workpiece. The pad is disposed at the bottom of the base. The output part of the second cylinder passes through the pad and the base in sequence and is connected to the support plate. The second cylinder is used to drive the support plate to move up and down along the direction of gravity, so that the workpiece supported on the support plate moves along the direction of gravity to the picking range of the picking part.

[0015] In the above-described automatic feeding nut welding machine, preferably, the lifting assembly further includes guide rods, two of which are disposed on both sides of the second cylinder. Guide holes are respectively provided on the pad and the base. One end of the two guide rods is connected to the bottom of the material support plate, and the other end of the two guide rods passes through the guide holes in sequence and extends along the direction of gravity. The guide rods are clearance-fitted with the guide holes.

[0016] In the automatic feeding nut welding machine described above, preferably, the first driving component includes a cylinder guide rail.

[0017] Compared with existing technologies, this utility model automatically transports workpieces to the welding mechanism via a transport mechanism. The placement rack can stack multiple workpieces simultaneously, the pick-up unit picks up and releases the workpieces, and the transport mechanism delivers the workpieces to the welding point. The entire feeding process is automated. For smaller or thinner workpieces, only one workpiece can be transported to the welding mechanism at a time, avoiding worker errors in placing multiple workpieces. This improves the accuracy of workpiece placement at the welding point, increases the yield of welded workpieces, reduces the complexity of worker operations, and improves work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure at point A of this utility model;

[0020] Figure 3 This is a schematic diagram of the transportation mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the pickup component in this utility model;

[0022] Figure 5 This is a schematic diagram of the mounting base in this utility model;

[0023] Figure 6 This is a structural schematic diagram of the lifting component in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Placement rack; 2. Transport mechanism; 3. Welding mechanism; 4. Base; 5. Lifting assembly;

[0026] 20. First driving component; 21. Pick-up component; 210. First cylinder; 211. Cylinder output unit; 212. Pneumatic suction cup; 213. Mounting base;

[0027] 30. Frame; 31. Nut delivery gun; 32. Electrode head;

[0028] 50. Second cylinder; 51. Pad block; 52. Material support plate; 53. Guide rod. Detailed Implementation

[0029] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] See Figure 1-2 As shown, this utility model provides an automatic feeding nut welding machine, comprising:

[0031] Placement rack 1, which has a receiving space for accommodating workpieces; see also Figure 3 The placement rack 1 can be a frame structure used to surround the workpiece, ensuring that the position of the workpiece is fixed when loading, and avoiding displacement during movement, so that the workpiece cannot accurately correspond to the electrode head 32 when it reaches the second preset position.

[0032] The transport mechanism 2 can move along a first preset path, which has a first preset position and a second preset position. The first preset position corresponds to the placement rack 1. The transport mechanism 2 is used to transport the workpieces in the placement rack 1 from the first preset position to the second preset position. By setting the transport mechanism 2 to send the workpieces placed at the placement rack 1 from the first preset position to the second preset position, the automatic loading of workpieces is realized. The workpieces loaded on the placement rack 1 are neatly stacked. The transport mechanism 2 can ensure that the workpieces sent to the second preset position are accurately placed as required, reducing the risk of workpieces shifting due to messy placement when workers load them, and effectively improving the loading speed and the accuracy of workpiece placement.

[0033] Welding mechanism 3 is positioned at a second preset position. When the transport mechanism 2 transports the workpiece to the second preset position, the welding mechanism 3 is used to weld the workpiece. In this embodiment, the first preset path is the path along which the transport mechanism 2 moves the workpiece from the placement rack 1 to the welding point of the welding mechanism 3.

[0034] Example 1

[0035] See Figure 2-3 As shown, the transport mechanism 2 includes a first driving component 20 and a picking component 21. The first driving component 20 drives the picking component 21 to move along a first preset path. The picking component 21 is used to pick up and release workpieces. The picking component 21 picks up the workpieces from the placement rack 1. When it reaches a second preset position, the workpiece is automatically released, and the picking component 21 resets to perform the next picking action. The picking component 21 can be a robotic arm or other adsorption device.

[0036] In one possible implementation, see Figure 4As shown, the picking component 21 includes a first cylinder 210, a cylinder output section 211, a pneumatic suction cup 212, and a mounting base 213. The first cylinder 210 is mounted on the first driving component 20, the cylinder output section 211 is mounted on the first cylinder 210, the pneumatic suction cup 212 is positioned at a first preset position, one end of the mounting base 213 is mounted on the cylinder output section 211, and the other end of the mounting base 213 is connected to the pneumatic suction cup 212. The first cylinder 210 drives the cylinder output section 211 to move up and down, and the pneumatic suction cup 212 is used to pick up or release the workpiece. In this embodiment, the suction function of the pneumatic suction cup 212 is used to pick up the workpiece. Because the pneumatic suction cup 212 has a simple structure, it is less likely to come into contact with other welding units during workpiece picking and conveying, reducing maintenance costs. Furthermore, the pneumatic suction cup 212 can ensure that only one workpiece is picked up at a time, achieving precise loading. For workpieces with magnetic properties, the pneumatic suction cup 212 can be replaced with an electromagnet.

[0037] In this embodiment, see Figure 1-3 As shown, the welding mechanism 3 includes a frame 30, a nut conveying gun 31, and an electrode head 32. The nut conveying gun 31 and the electrode head 32 are respectively mounted on the frame 30. The electrode head 32 is positioned at a second preset position. When the transport mechanism 2 transports the workpiece to the second preset position, the nut conveying gun 31 is used to transport a preset number of nuts to the second preset position, and the electrode head 32 welds the workpiece and the nuts. Specifically, the pickup component 21 picks up the workpiece in the placement rack 1 and moves along the first preset path under the drive of the first driving component 20. When it reaches the second preset position, the pickup component 21 automatically releases the workpiece, and the workpiece falls exactly on the welding point corresponding to the electrode head 32. It waits for the nut conveying gun 31 to deliver the nut to the workpiece, and then the electrode head 32 welds the nut and the workpiece. The welding mechanism 3 in this embodiment is the automatic feeding nut welding machine in the prior art. The traditional automatic feeding nut welding machine can only automatically feed the nut to the welding point, that is, the second preset position. This new invention, by setting the transport mechanism 2, also automatically delivers the workpiece that needs to be welded to the nut to the second preset position, realizing automatic feeding and welding, and reducing the workload of workers.

[0038] Example 2

[0039] See Figure 2-3 As shown, a base 4 is provided on the frame 30, and the transport mechanism 2 and the placement rack 1 are both mounted on the base 4. In order to increase the stability of the transport mechanism 2, the base 4 is installed together with the welding mechanism 3, and the transport mechanism 2 and the placement rack 1 are detachably installed as a whole with the welding mechanism 3 to accommodate welding mechanisms 3 of various specifications. An obstacle avoidance hole is provided on the base 4 at the second preset position so that the electrode head 32 can pass through.

[0040] Example 3

[0041] See Figure 3 As shown, a lifting assembly 5 is installed at the bottom of the placement rack 1. The lifting assembly 5 is used to drive the workpiece to move in the direction of gravity. In order to facilitate the pick-up of workpieces by the transport mechanism 2, the lifting assembly 5 is set to automatically lift the workpiece to quickly reach the pick-up range of the pickup 21. It should be noted that the pickup 21 itself has a certain movement distance in the direction of gravity. The lifting assembly 5 is set to deliver the workpiece to the pick-up range of the pickup 21 more quickly. It can be set to automatically lift the next workpiece while the pickup 21 is moving along the first preset path, thereby reducing the movement path of the pickup 21 and greatly improving the loading speed.

[0042] In one possible implementation, see Figure 6 As shown, the lifting assembly 5 includes a second cylinder 50, a pad 51, and a support plate 52. The support plate 52 is located inside the placement frame 1 and is used to support the workpiece. The pad 51 is located at the bottom of the base 4. The output of the second cylinder 50 passes through the pad 51 and the base 4 in sequence and is connected to the support plate 52. The second cylinder 50 is used to drive the support plate 52 to move up and down along the direction of gravity, so that the workpieces supported on the support plate 52 can be moved to the picking range of the picking component 21 along the direction of gravity. By setting the second cylinder 50 to drive the support plate 52 to move along the direction of gravity, the next workpiece can be moved to the highest point after the previous workpiece is picked up, realizing the automatic lifting of the workpieces, which is convenient for the picking component 21 to pick up. The worker only needs to place one set of workpieces at a time, and the lifting assembly 5 will automatically lift the workpieces. After all the workpieces are welded, the next set of workpieces can be placed, reducing working time and improving work efficiency. The pad 51 is used to install the second cylinder 50 and the base 4 together.

[0043] In one possible implementation, see Figure 6 As shown, the lifting assembly 5 also includes guide rods 53. There are two guide rods 53, which are located on both sides of the second cylinder 50. Guide holes are respectively opened on the pad block 51 and the base 4. One end of the two guide rods 53 is connected to the bottom of the material support plate 52. The other end of the two guide rods 53 passes through the guide holes in sequence and extends along the direction of gravity. The guide rods 53 are clearance-fitted with the guide holes. The guide rods 53 guide the movement direction of the second cylinder 50 to prevent it from deviating during the movement and affecting the lifting of the workpiece.

[0044] In one possible implementation, see Figure 1-3 As shown, the first driving component 20 includes a cylinder guide rail. The guide rail cylinder has high precision, smoother sliding, and can improve service life. Limit screws are provided at both ends of the guide rail, and the stroke can be adjusted to allow for setting the stroke distance for different workpieces.

[0045] Based on the above embodiments, the working process of this utility model is as follows: The worker places the workpiece in the placement rack 1, starts the automatic feeding nut welding machine, the pick-up component 21 picks up the workpiece at the placement rack 1, and moves it along the first preset path to the second preset position under the drive of the first drive component 20. The pick-up component 21 releases the workpiece, and at this time the workpiece falls on the welding point at the second preset position. The nut conveying gun 31 sends the nut to the welding point, and the electrode head 32 welds the nut and the workpiece. When the pick-up component 21 takes away the workpiece at the highest point, the second cylinder 50 drives the material support plate 52 to rise and send the next workpiece to the highest point so that the pick-up component 21 can reset and pick up the next workpiece. After the welding is completed, the worker manually takes off the completed workpiece, and the pick-up component 21 releases the next workpiece. The cycle repeats, thereby realizing automated feeding of workpieces, solving the problems of slow feeding speed and easy positional deviation caused by the worker, and improving work efficiency. It should be noted that those skilled in the art should know that the system control in this invention is all prior art, and the operation steps of the transport mechanism 2 and the welding mechanism 3 can be set according to prior art, which will not be elaborated here.

[0046] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. An automatic feeding nut welding machine, characterized in that, include: A placement rack having a receiving space for accommodating workpieces; A transport mechanism is available to move along a first preset path. The first preset path has a first preset position and a second preset position. The first preset position corresponds to the placement rack. The transport mechanism is used to transport the workpiece in the placement rack from the first preset position to the second preset position. A welding mechanism is provided at the second preset position. When the transport mechanism transports the workpiece to the second preset position, the welding mechanism is used to weld the workpiece. The transport mechanism includes a first driving component and a picking component. The first driving component is used to drive the picking component to move along the first preset path, and the picking component is used to pick up and release the workpiece. The picking component includes a first cylinder, a cylinder output section, a pneumatic suction cup, and a mounting base. The first cylinder is mounted on the first driving component, the cylinder output section is mounted on the first cylinder, the pneumatic suction cup is positioned corresponding to the first preset position, one end of the mounting base is mounted on the cylinder output section, and the other end of the mounting base is connected to the pneumatic suction cup. The first cylinder is used to drive the cylinder output section to move up and down, and the pneumatic suction cup is used to pick up or release the workpiece. The welding mechanism includes a frame, a nut delivery gun, and an electrode head. The nut delivery gun and the electrode head are respectively mounted on the frame. The electrode head is positioned at the second preset position. When the transport mechanism transports the workpiece to the second preset position, the nut delivery gun is used to transport a preset number of nuts to the second preset position, and the electrode head welds the workpiece and the nuts.

2. The automatic feeding nut welding machine as described in claim 1, characterized in that, The frame is provided with a base, and the transport mechanism and the placement rack are both mounted on the base.

3. The automatic feeding nut welding machine as described in claim 2, characterized in that, The bottom of the placement rack is equipped with a lifting component, which is used to drive the workpiece to move in the direction of gravity.

4. The automatic feeding nut welding machine as described in claim 3, characterized in that, The lifting assembly includes a second cylinder, a pad block, and a support plate. The support plate is located inside the placement frame and is used to support the workpiece. The pad block is located at the bottom of the base. The output part of the second cylinder passes through the pad block and the base in sequence and is connected to the support plate. The second cylinder is used to drive the support plate to move up and down along the direction of gravity, so that the workpiece supported on the support plate moves along the direction of gravity to the picking range of the picking component.

5. An automatic feeding nut welding machine as described in claim 4, characterized in that, The lifting assembly also includes guide rods, two of which are provided and located on both sides of the second cylinder. Guide holes are provided on the pad and the base, one end of each guide rod is connected to the bottom of the material support plate, and the other end of each guide rod passes through the guide hole and extends along the direction of gravity. The guide rods are clearance-fitted with the guide holes.

6. The automatic feeding nut welding machine as described in claim 1, characterized in that, The first driving component includes a cylinder guide rail.

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