Small-aperture gear hobbing clamp for numerical control gear hobbing machine

Abstract

The small-aperture gear hobbing clamp for the numerical control gear hobbing machine comprises a mounting base, the lower surface of the mounting base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating base, the upper surface of the rotating base is fixedly connected with an adjusting telescopic rod, and the adjusting telescopic rod is fixedly connected with a second motor. An adjusting base is fixedly connected to the ends, away from the rotating base, of the adjusting telescopic rods, an adjusting rotating disc is driven by a second motor to rotate, so that a connecting rod drives a clamping block to move along a vortex-shaped sliding groove, then a workpiece is fixed and dismantled, and the inclination angle of an adjusting base is adjusted through the height difference of the four adjusting telescopic rods; the inclined angle of the workpiece can be adjusted by adjusting the inclined angle of the workpiece, cutting operation of the workpiece at different angles can be achieved, the clamp can be suitable for machining of various hobbing teeth, the applicability of the clamp is improved, time wasted by clamp replacement is avoided, the working efficiency is improved, the number of clamps equipped by a company is reduced, and therefore the cost of the company is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hobbing fixtures, in particular to a gear hobbing fixture for small-aperture gears used in a numerically controlled gear hobbing machine. Background Art

[0002] Gear hobbing is a method of machining gears using a hob according to the principle of generating. Gear hobbing includes straight and helical gear cutting. The workpiece is clamped on a fixture and the hob is used to cut the gears. During the hobbing process, the fixture needs to rotate the workpiece to facilitate the hob to cut the teeth on the outer surface of the workpiece.

[0003] However, the existing gear hobbing fixtures can mostly only rotate in the horizontal direction when driving the workpiece to rotate, and cannot adjust the inclination angle of the workpiece. This will cause the hob to only be able to cut along the axial direction of the workpiece, and the processing direction is single, resulting in low applicability of the fixture. When helical gears need to be processed, the fixture needs to be replaced, which not only wastes time but also affects work efficiency, and requires the company to be equipped with multiple fixtures, which will increase the company's costs. After searching, it was found that the technical solution provided by the utility model with application number CN201921335824.9 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art, and to provide a small-aperture gear hobbing fixture for a CNC gear hobbing machine, in which the adjusting turntable is driven to rotate by a second motor so that the connecting rod drives the clamping block to move along the vortex groove, thereby fixing and removing the workpiece, and the inclination angle of the adjusting seat is adjusted by the height difference of the four adjusting telescopic rods, thereby adjusting the inclination angle of the workpiece, which can realize cutting operations at different angles of the workpiece and can adapt to a variety of gear hobbing processing, which not only improves the applicability of the fixture but also avoids the time wasted in replacing the fixture, improves work efficiency, and also reduces the number of fixtures equipped by the company, thereby reducing the company's costs.

[0005] The utility model also provides a small-aperture gear hobbing fixture for a CNC gear hobbing machine, comprising: a mounting base, a first motor fixedly connected to the lower surface of the mounting base, an output end of the first motor fixedly connected to a rotating base, an adjusting telescopic rod fixedly connected to the upper surface of the rotating base, an end of the adjusting telescopic rod away from the rotating base fixedly connected to the adjusting base, a fixed housing fixedly connected to the upper surface of the adjusting base, and a clamping seat fixedly connected to the upper surface of the fixed housing;

[0006] The upper surface of the adjusting base is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the adjusting dial, and a vortex groove is provided inside the adjusting dial, and the inner surface of the vortex groove is slidably connected to a sliding rod, and the upper surface of the sliding rod is fixedly connected to a clamping block, and the adjusting dial is driven by the second motor to rotate so that the connecting rod drives the clamping block to move along the vortex groove, thereby fixing and removing the workpiece, and adjusting the inclination angle of the adjusting seat is achieved by adjusting the height difference of the four telescopic rods, thereby adjusting the inclination angle of the workpiece, which can realize cutting operations at different angles of the workpiece and can adapt to a variety of gear hobbing processing, which not only improves the applicability of the fixture but also avoids the time wasted in replacing the fixture, improves work efficiency, and also reduces the number of fixtures equipped by the company, thereby reducing the company's costs.

[0007] According to the small-aperture gear hobbing fixture for a CNC hobbing machine, a rubber gasket is fixedly connected to the inner surface of the clamping block, and the lower surface of the rubber gasket is slidably connected to the clamping seat, which facilitates clamping the workpiece while protecting the workpiece to prevent the workpiece from being damaged by the clamping block.

[0008] According to the small-aperture gear hobbing fixture for a CNC hobbing machine, a limiting groove is provided inside the clamping seat, and the inner surface of the limiting groove is slidably connected to the slide rod to limit the moving direction of the slide rod, thereby preventing the slide rod from rotating when the adjustment dial rotates.

[0009] According to the small-aperture gear hobbing fixture for a CNC hobbing machine, a telescopic protective cover is fixedly connected to the upper surface of the rotating base, and the upper surface of the telescopic protective cover is fixedly connected to the adjustment base to protect the internal adjustment telescopic rod and prevent external debris from entering the interior and causing damage.

[0010] According to the small-aperture gear hobbing fixture for a CNC gear hobbing machine, a mounting bracket is fixedly connected to the lower surface of the mounting base, and the number of the mounting brackets is four and arranged in a rectangular array.

[0011] According to the small-aperture gear hobbing fixture for a CNC hobbing machine, the lower surface of the clamping block is slidably connected to the clamping seat, and the number of the clamping blocks is four and arranged in a ring array.

[0012] According to the small-aperture gear hobbing fixture for a CNC gear hobbing machine, the outer surface of the adjusting dial is slidably connected to the fixed housing, and the upper surface of the adjusting dial is slidably connected to the clamping seat.

[0013] According to the small-aperture gear hobbing fixture for a CNC gear hobbing machine, the outer surface of the rotating base is slidably connected to the mounting base, and the first motor and the second motor are both electrically connected to an external power supply.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structure diagram of a small-aperture gear hobbing fixture for a CNC gear hobbing machine of the utility model;

[0017] Figure 2 This is a cross-sectional view of a small-aperture gear hobbing fixture for a CNC gear hobbing machine according to the present invention;

[0018] Figure 3 This is an exploded view of the partial structure of a small-aperture gear hobbing fixture for a CNC gear hobbing machine of the utility model;

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0020] Legend:

[0021] 1. Mounting base; 2. First motor; 3. Rotating base; 4. Adjustable telescopic rod; 5. Adjusting base; 6. Fixed housing; 7. Clamping seat; 8. Second motor; 9. Adjusting turntable; 10. Vortex slide; 11. Slide rod; 12. Clamping block; 13. Rubber gasket; 14. Limiting slide; 15. Telescopic protective cover; 16. Mounting bracket. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4The embodiment of the utility model is a small-aperture gear hobbing fixture for a CNC gear hobbing machine, comprising: a mounting base 1, a mounting frame 16 being fixedly connected to the lower surface of the mounting base 1, four mounting frames 16 being arranged in a rectangular array, a first motor 2 being fixedly connected to the lower surface of the mounting base 1, a rotating base 3 being fixedly connected to the output end of the first motor 2, an outer surface of the rotating base 3 being slidingly connected to the mounting base 1, an adjusting telescopic rod 4 being fixedly connected to the upper surface of the rotating base 3, an adjusting base 5 being fixedly connected to the end of the adjusting telescopic rod 4 away from the rotating base 3, a telescopic protective cover 15 being fixedly connected to the upper surface of the rotating base 3, an upper surface of the telescopic protective cover 15 being fixedly connected to the adjusting base 5, a fixed shell 6 being fixedly connected to the upper surface of the adjusting base 5, and a clamping seat 7 being fixedly connected to the upper surface of the fixed shell 6.

[0024] The upper surface of the adjusting base 5 is fixedly connected to the second motor 8, the first motor 2 and the second motor 8 are electrically connected to the external power supply, the output end of the second motor 8 is fixedly connected to the adjusting dial 9, the outer surface of the adjusting dial 9 is slidingly connected to the fixed shell 6, the upper surface of the adjusting dial 9 is slidingly connected to the clamping seat 7, the interior of the adjusting dial 9 is provided with a vortex groove 10, the inner surface of the vortex groove 10 is slidingly connected to the slide rod 11, the interior of the clamping seat 7 is provided with a limiting groove 14, the inner surface of the limiting groove 14 is slidingly connected to the slide rod 11, the upper surface of the slide rod 11 is fixedly connected to the clamping block 12, the inner side surface of the clamping block 12 is fixedly connected to the rubber gasket 13, the lower surface of the rubber gasket 13 is slidingly connected to the clamping seat 7, the lower surface of the clamping block 12 is slidingly connected to the clamping seat 7, the number of the clamping blocks 12 is four and they are arranged in a circular array.

[0025] Working principle: Place the workpiece on the clamping seat 7, start the second motor 8, the second motor 8 drives the adjusting dial 9 to rotate so that the slide bar 11 slides along the vortex slide 10, thereby driving the four clamping blocks 12 to shrink synchronously to clamp the workpiece, the limiting slide 14 can limit the moving direction of the slide bar 11 to prevent the sliding bar 11 from rotating synchronously when the adjusting dial 9 rotates, start the first motor 2, the first motor 2 drives the rotating base 3 to rotate, thereby driving the workpiece to rotate for cutting operations, the inclination angle of the adjusting base 5 can be adjusted through the height difference of the four adjusting telescopic rods 4, the telescopic protective cover 15 can protect the internal adjusting telescopic rod 4 to prevent external debris from entering the interior and causing damage, and can also prevent workers from accidentally entering and causing harm to the workers.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A small-aperture gear hobbing fixture for a CNC gear hobbing machine, characterized in that: include: A mounting base (1), wherein the lower surface of the mounting base (1) is fixedly connected to a first motor (2), the output end of the first motor (2) is fixedly connected to a rotating base (3), the upper surface of the rotating base (3) is fixedly connected to an adjusting telescopic rod (4), the end of the adjusting telescopic rod (4) away from the rotating base (3) is fixedly connected to an adjusting base (5), the upper surface of the adjusting base (5) is fixedly connected to a fixed housing (6), and the upper surface of the fixed housing (6) is fixedly connected to a clamping seat (7); The upper surface of the adjustment base (5) is fixedly connected to a second motor (8), the output end of the second motor (8) is fixedly connected to an adjustment dial (9), a vortex chute (10) is provided inside the adjustment dial (9), the inner surface of the vortex chute (10) is slidably connected to a slide rod (11), and the upper surface of the slide rod (11) is fixedly connected to a clamping block (12).

2. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: The inner surface of the clamping block (12) is fixedly connected with a rubber gasket (13), and the lower surface of the rubber gasket (13) is slidably connected with the clamping seat (7).

3. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: A limiting sliding groove (14) is provided inside the clamping seat (7), and the inner surface of the limiting sliding groove (14) is slidably connected to the sliding rod (11).

4. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: A telescopic protective cover (15) is fixedly connected to the upper surface of the rotating base (3), and the upper surface of the telescopic protective cover (15) is fixedly connected to the adjusting base (5).

5. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: The lower surface of the mounting base (1) is fixedly connected with a mounting frame (16), and the number of the mounting frames (16) is four and they are arranged in a rectangular array.

6. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: The lower surface of the clamping block (12) is slidably connected to the clamping seat (7), and the number of the clamping blocks (12) is four and they are arranged in a ring array.

7. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: The outer surface of the adjusting dial (9) is slidably connected to the fixed housing (6), and the upper surface of the adjusting dial (9) is slidably connected to the clamping seat (7).

8. The small-aperture gear hobbing fixture for a CNC gear hobbing machine according to claim 1, characterized in that: The outer surface of the rotating base (3) is slidably connected to the mounting base (1), and the first motor (2) and the second motor (8) are both electrically connected to an external power supply.

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