Automatic laser welding equipment for milling cutter

Abstract

The utility model relates to the technical field of milling cutter automatic welding, in particular to a milling cutter automatic laser welding device which comprises a workbench, a milling cutter clamping device is arranged at the top end of the workbench, a milling cutter body is arranged in the milling cutter clamping device, and a blade is arranged outside the milling cutter body. A blade propelling device is arranged on one side of the blade, an ejector pin is arranged on one side face of the milling cutter body, a connecting sleeve is arranged at one end of the ejector pin, a fixing ring is arranged at one end of the connecting sleeve, a groove is formed in the outer portion of the fixing ring, a plurality of balls are arranged in the groove, and the connecting sleeve is connected with the fixing sleeve. A containing cavity is formed in the fixing sleeve, an electric push rod is arranged at one end of the containing cavity, laser welding equipment is arranged at the top end of the milling cutter body, and by means of the structure of the groove, the balls, the fixing sleeve, the connecting sleeve and the ejector pin, the problems that in the device, the ejector pin and the milling cutter body are abraded after being in contact for a long time, and replacement is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding of milling cutters, in particular to automatic laser welding equipment for milling cutters. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. During operation, each tooth cuts off the workpiece's excess in turn and intermittently. Milling cutters are mainly used to process planes, steps, grooves, formed surfaces, and cut workpieces on milling machines. They generally include a shank and a blade. The blade is welded and fixed to the shank by welding. The welding process is a key process in the milling cutter manufacturing process, which is used to weld the blade to the milling cutter. This process is directly related to the quality and cost of the product. At present, domestic manufacturers basically use manual welding. Manual welding is usually extremely difficult to control the welding positioning point, and the welding accuracy is low. As a last resort, the blade grinding allowance can only be widened. This practice will lead to a waste of expensive alloy raw materials on the one hand; on the other hand, it will increase the workload of the subsequent process and increase the cost; the third aspect is that the blade reserved angle is changed, which seriously affects the product quality. Manual mass welding is not only labor-intensive and inefficient, but also the welding quality and quality cannot be guaranteed. For example, the welding temperature and mechanical strength are difficult to control, which directly affects the product quality.

[0003] And in the application document with the publication number CN213497157U, an automated laser welding device for a milling cutter is mentioned. The device first fixes the connecting column of the milling cutter on the milling cutter fixing device, and places a group of blades on the blade pushing mechanism. The milling cutter fixing device is started to drive the milling cutter body to rotate to the position where the blade needs to be welded, and then the blade pushing mechanism is started to push the blade to the welding position on the cutter head, and then the laser welding head is used for welding. After completing one welding, the blade pushing mechanism withdraws from the working position, the milling cutter fixing device drives the milling cutter body to rotate to the next position where the blade needs to be welded, and then the blade pushing mechanism advances to the working position, and pushes the blade to the welding position on the cutter head again, and the laser welding head is used for welding, and so on, until all positions on the milling cutter are welded with blades, the milling cutter is removed from the milling cutter fixing device, and the next milling cutter to be welded is replaced. After the blade is used up, the next group of blades are replaced. However, there are still certain defects, which need to be optimized. The specific defects are as follows: the ejector pin in the device will be worn after a long contact with the milling cutter body, which is not convenient for replacement.

[0004] Therefore, it is particularly important to design an automated laser welding device for a milling cutter to change the above technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic laser welding device for a milling cutter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] An automatic laser welding device for a milling cutter, comprising a workbench, a milling cutter clamping device is provided at the top of the workbench, a milling cutter body is provided inside the milling cutter clamping device, a blade is provided outside the milling cutter body, a blade pushing device is provided on one side of the blade, a thimble is provided on one side surface of the milling cutter body, a connecting sleeve is provided at one end of the thimble, a fixing ring is provided at one end of the connecting sleeve, a groove is provided outside the fixing ring, a plurality of balls are provided inside the groove, the connecting sleeve is connected to a fixing sleeve, an accommodating cavity is provided inside the fixing sleeve, an electric push rod is provided at one end of the accommodating cavity, and a laser welding device is provided at the top of the milling cutter body.

[0008] As a preferred solution of the present utility model, the thimble is in a conical tube shape, and a threaded groove is provided at one end of the thimble close to the connecting sleeve.

[0009] As a preferred solution of the present utility model, a threaded hole adapted to the thimble is provided inside the connecting sleeve, and the thimble is threadedly connected with the thimble.

[0010] As a preferred solution of the present utility model, a limiting groove adapted to the groove is provided inside the fixing sleeve, and the connecting sleeve and the fixing sleeve are rotatably connected.

[0011] As a preferred solution of the present utility model, the output end of the electric push rod is adapted to the accommodating cavity.

[0012] As a preferred solution of the present utility model, the output end of the electric push rod is bolted to the fixing sleeve.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the present utility model, by providing an automatic laser welding device for a milling cutter, using the structure of the groove, the ball, the fixing sleeve, the connecting sleeve and the thimble, the threaded connection between the connecting sleeve and the thimble facilitates the replacement of the thimble, and at the same time, the rotation between the connecting sleeve and the fixing sleeve does not prevent the rotation of the milling cutter body. Subsequently, the bolt connection between the fixing sleeve and the electric push rod facilitates the adjustment of the position of the thimble, solving the problem that the contact between the thimble and the milling cutter body will be worn after a long time and it is not convenient to replace. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the thimble assembly of the present utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the rotating assembly of the connecting sleeve of the present utility model.

[0018] In the figure: 1, workbench; 2, milling cutter clamping device; 3, milling cutter body; 4, blade; 5, blade propulsion device; 6, thimble; 601, connecting sleeve; 602, fixing ring; 603, groove; 604, ball; 605, fixing sleeve; 606, accommodating cavity; 607, electric push rod; 7, laser welding device. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein in the description of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For the embodiments, please refer to Figures 1-3 , the present utility model provides a technical solution:

[0024] An automated laser welding device for a milling cutter, comprising a workbench 1. At the top of the workbench 1, there is a milling cutter clamping device 2. Inside the milling cutter clamping device 2, there is a milling cutter body 3. Outside the milling cutter body 3, there are cutting blades 4. On one side of the cutting blade 4, there is a cutting blade pushing device 5. On one side surface of the milling cutter body 3, there is a thimble 6. At one end of the thimble 6, there is a connecting sleeve 601. At one end of the connecting sleeve 601, there is a fixing ring 602. Outside the fixing ring 602, there is a groove 603. Inside the groove 603, there are several ball bearings 604. The connecting sleeve 601 is connected to a fixing sleeve 605. Inside the fixing sleeve 605, there is a receiving cavity 606. At one end of the receiving cavity 606, there is an electric push rod 607. At the top of the milling cutter body 3, there is a laser welding device 7. After installing the milling cutter body 3 and the milling cutter clamping device 2, then place the cutting blade 4 on the cutting blade pushing device 5 and position the cutting blade 4 at a suitable position on the milling cutter body 3. Subsequently, start the electric push rod 607 to push the thimble 6 to a suitable position, that is, to contact one end of the milling cutter body 3. Then start the laser welding device 7 to perform laser welding between the cutting blade 4 and the milling cutter body 3. After welding one side, start the milling cutter clamping device 2 to rotate. At this time, the thimble 6 rotates accordingly. The thimble 6 and the connecting sleeve 601 are connected by threading. The fixing sleeve 605 and the electric push rod 607 are installed by bolts. At this time, the thimble 6 can be removed and replaced after wear. When the milling cutter body 3 rotates, it drives the thimble 6 to rotate;

[0025] The thimble 6 is in a conical cylinder shape, and at the end of the thimble 6 close to the connecting sleeve 601, there is a threaded groove. Inside the connecting sleeve 601, there is a threaded hole adapted to the thimble 6. The thimble 6 and the connecting sleeve 601 are connected by threading, which is convenient for replacing the thimble 6. Inside the fixing sleeve 605, there is a limiting groove adapted to the groove 603. The connecting sleeve 601 and the fixing sleeve 605 are rotatably connected, which is convenient for rotating in cooperation with the milling cutter body 3. The output end of the electric push rod 607 is adapted to the receiving cavity 606. The output end of the electric push rod 607 and the fixing sleeve 605 are connected by bolts, which is convenient for installing the fixing sleeve 605.

[0026] Working process of the utility model: When using the automatic laser welding equipment for this type of milling cutter, first install the milling cutter body 3 and the milling cutter clamping device 2. Then place the blade 4 on the blade pushing device 5 and position the blade 4 at a suitable position on the milling cutter body 3. Subsequently, start the electric push rod 607 to push the ejector pin 6 to a suitable position, i.e., to contact one end of the milling cutter body 3. Then start the laser welding equipment 7 to perform laser welding between the blade 4 and the milling cutter body 3. After welding one side, start the milling cutter clamping device 2 to rotate. At this time, the ejector pin 6 rotates accordingly. The ejector pin 6 is installed and connected to the connecting sleeve 601 through threads, and the fixed sleeve 605 is installed on the electric push rod 607 through bolts. At this time, the ejector pin 6 can be removed and replaced after wear. When the milling cutter body 3 rotates, it drives the ejector pin 6 to rotate. The milling cutter clamping device 2, the blade pushing device 5, and the laser welding equipment 7 are existing technologies, and their principles will not be elaborated here.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automated laser welding device for a milling cutter, comprising a workbench (1), characterized in that: A milling cutter clamping device (2) is provided at the top of the workbench (1), a milling cutter body (3) is provided inside the milling cutter clamping device (2), a blade (4) is provided outside the milling cutter body (3), a blade pushing device (5) is provided on one side of the blade (4), a thimble (6) is provided on one side of the milling cutter body (3), a connecting sleeve (601) is provided at one end of the thimble (6), a fixing ring (602) is provided at one end of the connecting sleeve (601), a groove (603) is provided outside the fixing ring (602), a plurality of balls (604) are provided inside the groove (603), the connecting sleeve (601) is connected to a fixing sleeve (605), a receiving cavity (606) is provided inside the fixing sleeve (605), an electric push rod (607) is provided at one end of the receiving cavity (606), and a laser welding device (7) is provided at the top of the milling cutter body (3).

2. The automatic laser welding equipment for milling cutters according to claim 1, characterized in that: The ejector pin (6) is in the shape of a cone, and a threaded groove is provided at one end of the ejector pin (6) close to the connecting sleeve (601).

3. The automatic laser welding equipment for milling cutters according to claim 2, characterized in that: The connection sleeve (601) is provided with a threaded hole adapted to fit the ejector pin (6) inside, and the ejector pins (6) are connected to each other via threads.

4. The automatic laser welding equipment for milling cutters according to claim 1, characterized in that: The interior of the fixing sleeve (605) is provided with a limiting groove adapted to match the groove (603), and the connecting sleeve (601) and the fixing sleeve (605) are rotatably connected.

5. The automatic laser welding equipment for milling cutters according to claim 1, characterized in that: The output end of the electric push rod (607) is adapted to the accommodating cavity (606).

6. The automatic laser welding equipment for milling cutters according to claim 1, characterized in that: The output end of the electric push rod (607) is connected to the fixing sleeve (605) via bolts.

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