Double-end cutter bar for hub machining

Abstract

The utility model relates to the technical field of hub blank machining and manufacturing, and discloses a double-head cutter bar for hub machining, which comprises a cutter bar I, a groove I is arranged outside the cutter bar I, a rough turning blade is connected to the inner wall of the groove I in a sliding manner, a groove II is arranged outside the cutter bar I, and the rough turning blade is connected to the inner wall of the groove II in a sliding manner. A finish turning blade is connected to the inner wall of the second groove in a sliding mode, and two positioning screws are connected to the outer portion of the first cutter bar in a threaded mode. According to the utility model, the rough turning blade and the finish turning blade are fixed at designated positions through the positioning screws, the cutter bar I and the cutter bar II are further mounted on the tool turret of the machine tool through the cutter sleeves, the rough turning blade is firstly used for rough machining of the hub center hole from top to bottom, and then the finish turning blade is used for finish machining from bottom to top. And at the moment, the finish turning blade carries out finish machining on the inner rim of the hub again, the tool changing time is saved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hub blank processing and manufacturing, in particular to a double-headed tool bar for hub processing. Background Technique

[0002] In recent years, the sales volume of automobiles has gradually increased. Aluminum alloy automobile wheels have gradually become the mainstream products of automobile wheels due to their light weight and high strength. The demand for aluminum alloy wheels has also gradually increased. At present, the processing method of robots cooperating with CNC machine tools has become the main processing method for aluminum alloy wheels. How to improve the production efficiency of CNC machine tool processing and reduce the processing time of a single wheel has become an important way to increase the output of automobile wheels. At present, due to the size and space limitations of the processing parts, most of the tool bars can only install one type of cutting blade during the hub processing by CNC machine tools. This ordinary tool bar can only perform rough machining or finish machining on a certain part of the aluminum alloy wheel. The processing method is single, and the increase in the number of processing parts will lead to an increase in the tool change time, greatly reducing the production efficiency of the wheel hub. Some hubs require many tool bars because of more processing parts. Some tool bars can only be installed on specific tool positions, otherwise interference will occur during processing, rubbing against the workpiece, which may cause workpiece damage or a crashing accident. The insufficient tool positions have gradually become a new problem in hub processing.

[0003] However, the existing processing tool bars can only install one type of cutting blade, and different processing parts will lead to frequent tool changes. In addition, the shapes of some tool bars will also cause interference to the hub. Therefore, the technical personnel in this field have proposed a double-headed tool bar for hub processing to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a double-headed tool bar for hub processing, aiming to improve the problem that the existing processing tool bar can only install one type of cutting blade, resulting in frequent tool changes when processing different parts, and the shapes of some tool bars will cause interference to the hub.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a double-headed tool bar for hub processing, including a first tool bar, a groove one is opened on the outer part of the first tool bar, a rough turning blade is slidably connected to the inner wall of the groove one, a groove two is opened on the outer part of the first tool bar, a finish turning blade is slidably connected to the inner wall of the groove two, and two positioning screws are threadedly connected to the outer part of the first tool bar.

[0006] As a further description of the above technical scheme:

[0007] The first tool bar and the second tool bar adopt a square-round design.

[0008] As a further description of the above technical scheme:

[0009] Both the rough turning blade and the finish turning blade are fixed by positioning screws. The shape of the rough turning blade matches the shape of the first groove, and the shape of the finish turning blade matches the shape of the second groove.

[0010] As a further description of the above technical solution:

[0011] The rough turning blade and the finish turning blade are respectively on two machining planes outside the first tool bar. There is a certain angle between the rough turning blade and the finish turning blade.

[0012] As a further description of the above technical solution:

[0013] Two diversion grooves are provided on the outside of the first tool bar, and the inner bottom wall of the diversion groove is set to be arc-shaped.

[0014] As a further description of the above technical solution:

[0015] The outside of the first tool bar is threadedly connected with a second tool bar.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, the rough turning blade and the finish turning blade are fixed at the specified positions by positioning screws, and then the first tool bar and the second tool bar are installed on the machine tool turret through a tool sleeve. First, the rough turning blade is used to rough machine the hub center hole from top to bottom, and then the finish turning tool is used to finish machine from bottom to top, so as to complete the machining of the center hole. At this time, the finish turning blade is used to finish machine the inner rim of the hub again, saving the tool change time and improving the machining efficiency. Description of the Drawings

[0018] Figure 1 is a three-dimensional view of a double-headed tool bar for hub machining proposed by the utility model;

[0019] Figure 2 is a schematic structural view of the positioning screw of a double-headed tool bar for hub machining proposed by the utility model;

[0020] Figure 3 is a schematic structural view of the tool bar of a double-headed tool bar for hub machining proposed by the utility model.

[0021] Legend Explanation:

[0022] 1. Rough turning blade; 2. Finish turning blade; 3. Positioning screw; 4. First tool bar; 5. First groove; 6. Diversion groove; 7. Second groove; 8. Second tool bar. Detailed Implementation Modes

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Referring to Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present invention: a double - headed tool bar for hub processing, including a first tool bar 4. A first groove 5 is formed on the outer part of the first tool bar 4. A rough turning blade 1 is slidably connected to the inner wall of the first groove 5. A second groove 7 is formed on the outer part of the first tool bar 4. A finish turning blade 2 is slidably connected to the inner wall of the second groove 7. Two positioning screws 3 are threadedly connected to the outer part of the first tool bar 4.

[0025] Further, first, the rough turning blade 1 and the finish turning blade 2 are respectively fitted to the inner walls of the first groove 5 and the second groove 7, and then the rough turning blade 1 and the finish turning blade 2 are fixed by the positioning screws 3. After the installation of the rough turning blade 1 and the finish turning blade 2 is completed, the first tool bar 4 and the second tool bar 8 are installed on the machine tool turret through a tool sleeve. During the processing of the aluminum alloy hub, first, the rough turning blade 1 is used to perform rough machining on the hub center hole from top to bottom, and then the finish turning tool is used to perform finish machining from bottom to top, thereby completing the machining of the center hole. Since the installation angle of the finish turning blade 2 is consistent with the machining angle of the inner rim, the inner rim of the hub can be further finish - machined. In this way, the machining of three parts can be completed by only changing one type of tool bar, saving the time of changing tools twice and reducing the occupation of tool positions, thereby improving the machining efficiency.

[0026] Referring to Figure 1 、 Figure 2 and Figure 3 , the first tool bar 4 and the second tool bar 8 adopt a square - round design.

[0027] Further, the circular part of the second tool bar 8 can perfectly fit the tool sleeve, preventing the tool bar from shaking during the machining process. The square part of the first tool bar 4 facilitates the perpendicular fitting of the fixing bolts on the tool sleeve and is not easy to loosen.

[0028] Referring to Figure 1 、 Figure 2 and Figure 3 , both the rough turning blade 1 and the finish turning blade 2 are fixed by the positioning screws 3. The shape of the rough turning blade 1 matches the shape of the first groove 5, and the shape of the finish turning blade 2 matches the shape of the second groove 7.

[0029] Further, the rough turning blade 1 is fitted to the inner wall of the first groove 5 and then fixed by the positioning screw 3. Then, the finish turning blade 2 is fitted to the inner wall of the second groove 7 and fixed by the positioning screw 3. Under the action of the positioning screw 3, the rough turning blade 1 and the finish turning blade 2 can be accurately positioned to prevent displacement and cause machining dimension deviation.

[0030] Referring to Figure 1 、 Figure 2 and Figure 3 , the rough turning blade 1 and the finish turning blade 2 are respectively on two machining planes outside the first tool bar 4, and there is a certain angle between the rough turning blade 1 and the finish turning blade 2.

[0031] Further, different machining planes enable the rough turning blade 1 and the finish turning blade 2 to adapt to different specifications of the wheel hub. When machining the corresponding positions, the accuracy is accurate and there is no interference between them.

[0032] Referring to Figure 1 、 Figure 2 and Figure 3 , two diversion grooves 6 are provided on the outside of the first tool bar 4, and the inner bottom wall of the diversion groove 6 is arc-shaped.

[0033] Further, setting the diversion groove 6 facilitates the discharge of aluminum chips during machining, and also facilitates the injection of cutting fluid into the blade, preventing the blade from sticking aluminum or chipping due to overheating, reducing blade wear, and the arc-shaped inner bottom wall can make the discharge of aluminum chips more convenient.

[0034] Referring to Figure 1 、 Figure 2 and Figure 3 , the second tool bar 8 is threadedly connected to the outside of the first tool bar 4.

[0035] Further, the first tool bar 4 and the second tool bar 8 are set to be detachable, and cooperating with the tool sleeve can further expand its adaptation range.

[0036] Working principle: First, the rough turning blade 1 is fitted to the inner wall of the first groove 5 and then fixed by the positioning screw 3. Then, the finish turning blade 2 is fitted to the inner wall of the second groove 7 and fixed by the positioning screw 3. After the rough turning blade 1 and the finish turning blade 2 are installed, the first tool bar 4 and the second tool bar 8 are installed on the machine tool turret through the tool sleeve. During the machining of the aluminum alloy wheel hub, first use the rough turning blade 1 to rough machine the center hole of the wheel hub from top to bottom, and then use the finish turning tool to finish machine from bottom to top, thus completing the machining of the center hole. Since the installation angle of the finish turning blade 2 is consistent with the machining angle of the inner rim, the inner rim of the wheel hub can be finish machined again. In this way, the machining of three parts can be completed by only changing one kind of tool bar, saving the time of changing tools twice and reducing the occupation of tool positions.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-ended tool bar for wheel hub machining, comprising a tool bar 1 (4), characterized in that: The tool rod one (4) is provided with a groove one (5) on the outside, and a rough turning blade (1) is slidably connected to the inner wall of the groove one (5); the tool rod one (4) is provided with a groove two (7) on the outside, and a fine turning blade (2) is slidably connected to the inner wall of the groove two (7); and the outside of the tool rod one (4) is threadedly connected to two positioning screws (3).

2. The double-ended tool bar for wheel hub machining according to claim 1, characterized in that: The knife bar 1 (4) and the knife bar 2 (8) adopt a square and round design.

3. The double-ended tool bar for wheel hub machining according to claim 1, characterized in that: The rough turning blade (1) and the fine turning blade (2) are both fixed by means of positioning screws (3); the shape of the rough turning blade (1) matches the shape of the groove one (5), and the shape of the fine turning blade (2) matches the shape of the groove two (7).

4. The double-ended tool bar for wheel hub machining according to claim 1, characterized in that: The rough turning blade (1) and the fine turning blade (2) are respectively located on two processing planes outside the tool bar (4), and there is a certain angle between the rough turning blade (1) and the fine turning blade (2).

5. The double-ended tool bar for wheel hub machining according to claim 1, characterized in that: Two guide grooves (6) are provided on the outside of the knife rod 1 (4), and the inner bottom wall of the guide groove (6) is arranged in an arc shape.

6. The double-ended tool bar for wheel hub machining according to claim 1, characterized in that: The outer thread of the knife bar 1 (4) is connected to the knife bar 2 (8).

Images