Roll-grinding tool for lathe for barreling rotary workpiece

Abstract

The hobbing cutter for the lathe is simple in structure and easy to achieve, a first limiting opening of an installation groove is formed so that a ball part in the installation groove can protrude forwards conveniently, and a second opening is formed so that a ball and a rolling wheel can pass through the first limiting opening conveniently in the assembling process. According to the scheme, the rolling balls are adopted for barreling the rotating workpiece, the use and replacement cost is low, in addition, the wheel faces of the rolling wheels abut against the rear ends of the rolling balls, the friction force between the rolling balls can be reduced when the rolling balls abut against the rear ends of the rolling balls, better rolling of the rolling balls and barreling of the rotating workpiece are facilitated, and practicability is good.

Description

Technical Field

[0001] The utility model relates to a hobbing cutter for a lathe, which is used for hobbing a rotating workpiece. Background Art

[0002] Lathe tools are tools used for turning operations, primarily used on various lathes for machining external diameters, internal holes, end faces, threads, and slots. Lathe tools come in a wide variety of types and applications. Depending on the specific processing requirements, they can be categorized as external turning tools, grooving tools, threading tools, and internal turning tools.

[0003] The existing turning tools used for finishing the workpiece surface use turning tools with blades, which have high requirements on the quality of turning tools. Good turning tools are expensive, and the cost of regular replacement is also expensive, which leads to high processing costs. It is necessary to solve this problem. Utility Model Content

[0004] The utility model overcomes the shortcomings of the above-mentioned technology and provides a hobbing cutter for a lathe for hobbing a rotating workpiece.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lathe grinding tool for grinding a rotating workpiece comprises a blade body 1, a mounting groove 2 being provided at the front end of the blade body 1, a ball 3 for grinding the rotating workpiece and a roller 4 located at the rear end of the ball 3 being installed in the mounting groove 2, the mounting groove 2 being provided with a first limiting opening 21 located on the front wall of the blade body 1 for allowing the ball 3 to partially protrude forward, and a second opening 22 located on a side wall of the blade body 1 for allowing the ball 3 and roller 4 to pass during assembly, the roller 4 being rotatably connected to the mounting groove 2 via a transverse shaft 5 and having its wheel surface 41 pressing against the rear end of the ball 3.

[0007] Preferably, the blade body 1 is provided with a transverse channel 6 that crosses the mounting groove 2, one end of the transverse axis 5 passes through the transverse channel 6 and its outer side wall is provided with a groove 51 for installing a limiting clamp 7, and the other end of the transverse axis 5 is provided with a limiting portion 52 that cannot pass through the transverse channel 6.

[0008] Preferably, the blade body 1 extends forward and backward.

[0009] Preferably, the second opening 22 is opened on the upper side wall 11 of the blade body 1, and the mounting groove 2 includes a cylindrical groove portion 201 extending downward from the upper side wall 11 for mounting the ball 3 and a strip groove portion 202 extending downward from the upper side wall 11 for mounting the roller 4, the rear end of the cylindrical groove portion 201 is connected to the front end of the strip groove portion 202 and the width of the cylindrical groove portion 201 is not less than the width of the strip groove portion 202, the upper end of the cylindrical groove portion 201 and the upper end of the strip groove portion 202 form the second opening 22, and the first limiting opening 21 is connected to the cylindrical groove portion 201 from front to back.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The structure of this case is simple and easy to implement. The first limit opening of the mounting groove is set to facilitate the forward protrusion of the ball portion therein, and the setting of the second opening is convenient for the passage of the ball and the roller during assembly. This case adopts the ball to grind the rotating workpiece, and its use and replacement costs are low. In addition, this case uses the wheel surface of the roller to press the rear end of the ball, which can reduce the friction between the two when pressing the ball, which is conducive to better rolling of the ball and grinding the rotating workpiece, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is one of the structural diagrams of this case.

[0013] Figure 2 This is the second structural diagram of this case. DETAILED DESCRIPTION

[0014] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0015] like Figures 1 to 2 As shown, a lathe grinding tool for grinding a rotating workpiece includes a blade body 1, a mounting groove 2 is provided at the front end of the blade body 1, a ball 3 for grinding the rotating workpiece and a roller 4 located at the rear end of the ball 3 are installed in the mounting groove 2, the mounting groove 2 is provided with a first limiting opening 21 located on the front wall of the blade body 1 for allowing the ball 3 to partially protrude forward, and a second opening 22 located on a side wall of the blade body 1 for allowing the ball 3 and the roller 4 to pass during assembly, the roller 4 is rotatably connected to the mounting groove 2 through a transverse shaft 5 and its wheel surface 41 presses against the rear end of the ball 3.

[0016] As described above, the working process of this case is as follows: when in use, the rotating workpiece is pressed against the ball 3 from front to back, and the friction drives the ball 3 to roll. Under the action of mutual pressure, the ball 3 rolls and grinds the surface of the rotating workpiece. In addition, during operation, the use effect can be improved by adding lubricating oil to the ball 3 and the roller 4.

[0017] As described above, the structure of this case is simple and easy to implement. The first limit opening 21 of the mounting groove 2 is set to facilitate the forward protrusion of the ball 3 therein, and the setting of the second opening 22 is convenient for the passage of the ball 3 and the roller 4 during assembly; this case adopts the ball 3 to grind the rotating workpiece, and the cost of use and replacement is low. In addition, this case uses the wheel surface 41 of the roller 4 to press the rear end of the ball 3, which can reduce the friction between the two when pressing the ball 3, which is conducive to better rolling and grinding of the rotating workpiece by the ball 3, and has good practicality.

[0018] like Figure 1 、 Figure 2 As shown, in a specific implementation, the blade body 1 is provided with a transverse channel 6 that crosses the mounting groove 2, one end of the transverse axis 5 passes through the transverse channel 6 and its outer side wall is provided with a retaining groove 51 for installing a limiting retaining ring 7, and the other end of the transverse axis 5 is provided with a limiting portion 52 that cannot pass through the transverse channel 6, which is convenient to install and disassemble and has good practicality.

[0019] like Figure 1 、 Figure 2 As shown, in a specific implementation, the blade body 1 extends forward and backward.

[0020] like Figure 1 、 Figure 2 As shown, in a specific implementation, the second opening 22 is opened on the upper side wall 11 of the blade 1, and the mounting groove 2 includes a cylindrical groove portion 201 extending downward from the upper side wall 11 for mounting the ball 3 and a strip groove portion 202 extending downward from the upper side wall 11 for mounting the roller 4, the rear end of the cylindrical groove portion 201 is connected to the front end of the strip groove portion 202 and the width of the cylindrical groove portion 201 is not less than the width of the strip groove portion 202, the upper end of the cylindrical groove portion 201 and the upper end of the strip groove portion 202 form the second opening 22, and the first limiting opening 21 is connected to the cylindrical groove portion 201 from front to back.

[0021] As described above, the arrangement of the cylindrical groove portion 201 and the strip groove portion 202 in this case is convenient to implement. The rear end of the cylindrical groove portion 201 is connected to the front end of the strip groove portion 202 and the width of the cylindrical groove portion 201 is not less than the width of the strip groove portion 202, so that the front end of the roller 4 can sink into the cylindrical groove portion 201 and press the ball 3.

[0022] As mentioned above, this case protects a lathe grinding tool for grinding rotating workpieces. All technical solutions that are the same or similar to this case should be deemed to fall within the scope of protection of this case.

Claims

1. A lathe grinding tool for grinding a rotating workpiece, characterized in that The invention comprises a blade (1), wherein the front end of the blade (1) is provided with a mounting groove (2), wherein a ball (3) for rolling a rotating workpiece and a roller (4) located at the rear end of the ball (3) are installed in the mounting groove (2), wherein the mounting groove (2) is provided with a first limiting opening (21) located on the front wall of the blade (1) for allowing the ball (3) to partially protrude forward, and a second opening (22) located on a side wall of the blade (1) for allowing the ball (3) and the roller (4) to pass during assembly, wherein the roller (4) is rotatably connected to the mounting groove (2) via a transverse shaft (5), and the wheel surface (41) thereof presses against the rear end of the ball (3).

2. A lathe grinding tool for grinding a rotating workpiece according to claim 1, characterized in that The blade body (1) is provided with a transverse channel (6) that crosses the mounting groove (2); one end of the transverse shaft body (5) passes through the transverse channel (6) and an outer side wall thereof is provided with a retaining groove (51) for installing a limiting retaining ring (7); the other end of the transverse shaft body (5) is provided with a limiting portion (52) that cannot pass through the transverse channel (6).

3. A lathe grinding tool for grinding a rotating workpiece according to claim 1, characterized in that The blade (1) extends forward and backward.

4. A lathe grinding tool for grinding a rotating workpiece according to any one of claims 1 to 3, characterized in that The second opening (22) is provided on the upper side wall (11) of the blade body (1); the mounting groove (2) comprises a cylindrical groove portion (201) extending downward from the upper side wall (11) for mounting the ball (3) and a strip groove portion (202) extending downward from the upper side wall (11) for mounting the roller (4); the rear end of the cylindrical groove portion (201) is connected to the front end of the strip groove portion (202) and the width of the cylindrical groove portion (201) is not less than the width of the strip groove portion (202); the upper end of the cylindrical groove portion (201) and the upper end of the strip groove portion (202) form the second opening (22); and the first limiting opening (21) is connected to the cylindrical groove portion (201) from front to back.

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