Slotting cutter sharpening device

Abstract

The utility model discloses a slotting cutter sharpening device which comprises a cylindrical grinding machine and a power head, the cylindrical grinding machine is provided with a grinding wheel, a guide rail and a guide rail working table connected with the guide rail in a sliding mode, the power head is fixedly installed on the guide rail working table, a spindle of the power head is fixedly connected with a slotting cutter, and the slotting cutter faces the grinding direction of the grinding wheel. The center of the slotting cutter and the center of the grinding wheel are equal in height, an indexing mechanism is arranged at the bottom of the power head, the slotting cutter can rotate in an angle controllable mode through the indexing mechanism, an included angle alpha is formed between the slotting cutter and the grinding wheel, and the front cutter face of the slotting cutter is parallel to the grinding tangent plane of the grinding wheel. The power head is additionally arranged on the cylindrical grinding machine, the slotting cutter is installed on the power head, the slotting cutter is rotated through the indexing mechanism of the power head, the front cutter face of the slotting cutter is kept parallel to the grinding tangent plane of the grinding wheel, and it is guaranteed that the front rake angle of the slotting cutter is kept unchanged all the time in the grinding process.

Description

Technical Field

[0001] The utility model relates to the technical field of machining tools, in particular to a gear shaping cutter sharpening device. Background Art

[0002] A gear shaping cutter is a special tool for gear processing. The cutting edge of a gear shaping cutter will gradually become blunt as it is used for a long time, affecting the processing accuracy and cutting efficiency. Therefore, the gear shaping cutter is usually sharpened regularly to remove the wear, bluntness and scratches on the cutting edge, so that the tool can regain a sharp cutting edge, restore the cutting performance of the tool and extend its service life. The sharpening of gear shaping cutters is generally carried out by a special gear shaping cutter grinding machine or by using existing equipment (such as a grinding wheel machine, a grinder, etc.). However, the former is expensive and has a high grinding cost. The latter is difficult to control the grinding angle, resulting in uneven grinding of the front blade surface. The angle of the gear shaping cutter will change after grinding with a grinding wheel, and the rake angle cannot be guaranteed, affecting the processing quality of the product. Utility Model Content

[0003] The utility model aims to provide a gear shaping cutter sharpening device with simple structure and low cost, so that the gear shaping cutter after sharpening can ensure accurate rake angle, achieve the sharpening effect of a special gear shaping cutter grinder, and meet the use requirements.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A gear shaping cutter sharpening device comprises an external cylindrical grinder and a power head, wherein the external cylindrical grinder is provided with a grinding wheel, a guide rail and a guide rail worktable slidably connected to the guide rail, the power head is fixedly installed on the guide rail worktable, a main shaft of the power head is fixedly connected with a gear shaping cutter, the gear shaping cutter faces the grinding direction of the grinding wheel, the center of the gear shaping cutter is at the same height as the center of the grinding wheel, and a dividing mechanism is provided at the bottom of the power head, the gear shaping cutter can be rotated in a controllable angle through the dividing mechanism and forms an angle α with the grinding wheel, so that the front cutting surface of the gear shaping cutter is kept parallel to the grinding section of the grinding wheel.

[0006] Furthermore, the power head is mounted on the guide rail workbench by bolts.

[0007] Furthermore, an adjustment gasket is provided between the power head base and the guide rail workbench.

[0008] Furthermore, the angle α is equal to the rake angle of the gear shaping cutter.

[0009] Furthermore, the gear shaping cutter is a disc-shaped gear shaping cutter or a tapered shank gear shaping cutter.

[0010] Furthermore, a mounting cone rod is passed through the middle of the disc-shaped gear shaping cutter, one end of which is inserted into the tapered hole of the main shaft and fixedly connected to the main shaft by means of a tool locking mechanism of the power head, and the other end of the mounting cone rod is threadedly connected to a pressure plate, which presses the disc-shaped gear shaping cutter.

[0011] Furthermore, the tapered shank gear shaping cutter is inserted into the tapered hole of the main shaft and is fixedly connected to the main shaft by using the tool locking mechanism of the power head.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model installs a power head on the cylindrical grinder, and the gear shaping cutter is installed on the power head. The indexing mechanism of the power head is used to rotate the gear shaping cutter and keep the front cutting surface of the gear shaping cutter parallel to the grinding section of the grinding wheel, so as to ensure that the front inclination angle of the gear shaping cutter remains unchanged during the grinding process, the surface of the front cutting surface is smoother and the precision is higher, so as to achieve the grinding effect of the high-precision special gear shaping cutter grinding equipment and meet the use requirements.

[0014] 2. The utility model has a simple structure and low cost. It does not require a special gear shaping cutter grinder and can be modified and used on a cylindrical grinder. It is fast and efficient and can be quickly dismantled to restore the original function of the cylindrical grinder, saving the funds for purchasing a special gear shaping cutter grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the first embodiment of the utility model;

[0016] Figure 2 This is a top view of the first embodiment of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view in the middle;

[0018] Figure 4 This is a top view of the second embodiment of the utility model;

[0019] In the figure: 1-grinding wheel, 101-grinding section, 2-guide rail, 3-guide rail workbench, 4-power head, 401-spindle, 5A-disc gear shaping cutter, 5B-taper shank gear shaping cutter, 501-front cutting edge, 6-mounting taper rod, 7-pressure plate block, 8-bolt, 9-adjusting gasket. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0021] See also Figure 1-Figure 3A gear shaping cutter sharpening device comprises an external cylindrical grinder and a power head 4. The external cylindrical grinder is provided with a grinding wheel 1, a guide rail 2 and a guide rail worktable 3 slidably connected to the guide rail 2. The power head 4 is mounted on the guide rail worktable 3 by bolts 8. An adjusting gasket 9 is arranged between the base of the power head 4 and the guide rail worktable 3. The main shaft 401 of the power head 4 is fixedly connected with the gear shaping cutter. In this embodiment, the gear shaping cutter is a disc-shaped gear shaping cutter 5A. The disc-shaped gear shaping cutter 5A is provided with an installation cone rod 6 in the middle. One end of the installation cone rod 6 is inserted into the tapered hole of the main shaft 401 and is locked with the tool by the tool locking mechanism of the power head 4. The main shaft 401 is fixedly connected, and the other end of the mounting tapered rod 6 is threadedly connected with a pressure plate 7, which presses the disc-shaped gear shaping cutter 5A so that the disc-shaped gear shaping cutter 5A is fixedly installed on the main shaft 401. The gear shaping cutter faces the grinding direction of the grinding wheel 1, and the center of the gear shaping cutter is at the same height as the center of the grinding wheel 1. A dividing mechanism is provided at the bottom of the power head 4, and the gear shaping cutter can be rotated at a controllable angle through the dividing mechanism and form an angle α with the grinding wheel 1. The angle α is equal to the rake angle of the gear shaping cutter, so that the front cutting surface 501 of the gear shaping cutter is parallel to the grinding section 101 of the grinding wheel 1. In this embodiment, the rake angle of the gear shaping cutter is 5 degrees.

[0022] Working principle of this utility model:

[0023] First, place the power head 4 on the guide rail workbench 3, and use the adjusting shim 9 to adjust the height of the axis of the main shaft 401 of the power head 4 to make it equal to the center of the grinding wheel 1, and then fix the power head 4 on the guide rail workbench 3 by bolts 8, install the disc gear shaping cutter 5A on the main shaft 401 of the power head 4, and rotate the disc gear shaping cutter 5A by 5 degrees through the indexing mechanism of the power head 4. Figure 2 As shown, the front cutting surface 501 of the gear shaping cutter is kept parallel to the grinding section 101 of the grinding wheel 1, the power head 4 is started, and the spindle 401 drives the disc gear shaping cutter 5A to rotate. The front cutting surface 501 of the rotating disc gear shaping cutter 5A can be ground through the feeding movement of the grinding wheel 1 to perform the tool sharpening work. Since the front cutting surface 501 is always kept parallel to the grinding section 101 of the grinding wheel 1, the rake angle of the gear shaping cutter can be ensured to remain unchanged during the grinding process. Example

[0024] like Figure 4 As shown, the difference between this embodiment and the first embodiment is that the gear shaping cutter is a tapered shank gear shaping cutter 5B, which is inserted into the tapered hole of the spindle 401 and fixedly connected to the spindle 401 by the tool locking mechanism of the power head 4, and is mainly suitable for the grinding work of the tapered shank gear shaping cutter.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear shaping cutter sharpening device, characterized in that: The invention comprises an external cylindrical grinder and a power head (4), wherein the external cylindrical grinder is provided with a grinding wheel (1), a guide rail (2) and a guide rail worktable (3) slidably connected to the guide rail (2), the power head (4) is fixedly mounted on the guide rail worktable (3), a main shaft (401) of the power head (4) is fixedly connected with a gear shaping cutter, the gear shaping cutter faces the grinding direction of the grinding wheel (1), the center of the gear shaping cutter is at the same height as the center of the grinding wheel (1), and a dividing mechanism is provided at the bottom of the power head (4), the gear shaping cutter can be controlled to rotate at an angle through the dividing mechanism and form an angle α with the grinding wheel (1), so that the front cutting surface (501) of the gear shaping cutter and the grinding section (101) of the grinding wheel (1) remain parallel.

2. A gear shaping cutter sharpening device according to claim 1, characterized in that: The power head (4) is mounted on the guide rail workbench (3) via bolts (8).

3. A gear shaping cutter sharpening device according to claim 1, characterized in that: An adjustment gasket (9) is provided between the base of the power head (4) and the guide rail workbench (3).

4. A gear shaping cutter sharpening device according to claim 1, characterized in that: The angle α is equal to the rake angle of the gear shaping cutter.

5. A gear shaping cutter sharpening device according to claim 1, characterized in that: The gear shaping cutter is a disc-shaped gear shaping cutter (5A) or a tapered shank gear shaping cutter (5B).

6. A gear shaping cutter sharpening device according to claim 5, characterized in that: A mounting cone rod (6) is inserted through the middle of the disc-shaped gear shaping cutter (5A); one end of the mounting cone rod (6) is inserted into the cone hole of the main shaft (401) and is fixedly connected to the main shaft (401) by means of a tool locking mechanism of the power head (4); the other end of the mounting cone rod (6) is threadedly connected to a pressure plate (7); the pressure plate (7) presses the disc-shaped gear shaping cutter (5A).

7. A gear shaping cutter sharpening device according to claim 5, characterized in that: The tapered shank gear shaping cutter (5B) is inserted into the tapered hole of the main shaft (401) and is fixedly connected to the main shaft (401) by means of a tool locking mechanism of the power head (4).

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