Gear hobbing machine tool rest angle adjusting mechanism

Abstract

The utility model relates to the technical field of gear hobbing machines, and provides a gear hobbing machine tool rest angle adjusting mechanism which comprises a bottom frame and a mounting frame, the mounting frame is arranged on the bottom frame, a front-back adjusting assembly is arranged between the bottom frame and the mounting frame, a center shaft is rotationally connected in the mounting frame, and a rotating disc is fixed at one end of the center shaft. The mounting assembly is arranged on the rotating disc, the rotating adjusting assembly is arranged on the mounting frame and comprises a pair of through holes, the through holes are formed in the surface of the mounting frame, the rotating disc is provided with a pair of connecting rods, and the connecting rods are arranged in the through holes in a sleeved mode. By means of the technical scheme, the problem that in the prior art, when a gear hobbing machine tool rest is used, the angle adjusting position is generally an approximate position, manual repeated comparison or measurement is needed, and therefore the adjusting accuracy degree of an angle adjusting mechanism is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hobbing machines, and specifically, to an angle adjustment mechanism for the tool rest of a hobbing machine. Background Art

[0002] Generally, a hobbing machine is used to process and form gears. Traditional hobbing machines include a base, a tool rest, a tool holder, a hob, and an upper limit mechanism. During the process of gear processing by the hobbing machine, it is often necessary to adjust the angle of the tool rest of the hobbing machine through an angle adjustment mechanism to ensure the effect of gear processing by the hobbing machine.

[0003] When the tool rest of the hobbing machine is in use, the position of the general angle adjustment is a rough position, and manual comparison or measurement is still required, which affects the accuracy of the angle adjustment mechanism during adjustment. Since the cutting tool on the tool rest of the hobbing machine is small, it is not easy to provide auxiliary support when rotating its angle, resulting in poor stability of the cutting tool. The angle adjustment mechanism is installed on the surface of the hobbing machine relatively slowly, thus reducing the working efficiency during the use of the angle adjustment mechanism.

[0004] Therefore, improvements are made to the above problems. Summary of the Utility Model

[0005] The utility model provides an angle adjustment mechanism for the tool rest of a hobbing machine, which solves the problem that when the tool rest of the hobbing machine in related technologies is in use, the position of the general angle adjustment is a rough position, and manual comparison or measurement is still required, which affects the accuracy of the angle adjustment mechanism during adjustment.

[0006] The technical solution of the utility model is as follows: It includes

[0007] a chassis and a mounting frame, and the mounting frame is arranged on the chassis;

[0008] a front-back adjustment component, which is arranged between the chassis and the mounting frame;

[0009] a central shaft and a rotating disk, the central shaft is rotatably connected inside the mounting frame, and the rotating disk is fixed at one end of the central shaft;

[0010] a mounting component, which is arranged on the rotating disk;

[0011] a rotation adjustment component, which is arranged on the mounting frame. The rotation adjustment component includes a pair of through holes opened on the surface of the mounting frame, and the rotating disk is provided with a pair of connecting rods, and the connecting rods are sleeved inside the through holes.

[0012] As a further technical solution, one end of the connecting rod is fixedly connected with a limiting block, a pair of telescopic cylinders are arranged on the surface of the mounting frame, the output end of the telescopic cylinder is connected with a lapping frame, limiting frames are fixedly connected to both ends of the lapping frame, a worm gear is arranged at one end of the central shaft, and a worm is rotatably connected to the surface of the mounting frame, and the worm is meshed with the worm gear.

[0013] As a further technical solution, the mounting assembly includes a plurality of outer card slots, which are opened on the outer surface of the rotating disk in a circle, a plurality of threaded grooves are opened on the surface of the rotating disk, and a connecting frame is arranged on the surface of the rotating disk.

[0014] As a further technical solution, a fastening bolt is arranged in the connecting frame, the fastening bolt is screwed and connected with the threaded groove, a pair of positioning columns are arranged at both ends of the outer surface of the connecting frame, and the positioning columns are inserted and connected with the outer card slots.

[0015] As a further technical solution, the front and rear adjustment assembly includes a pair of connecting grooves, which are opened at both ends of the top of the bottom frame, a pair of connecting blocks are arranged at the bottom of the mounting frame, the connecting blocks are rotatably connected with the connecting grooves through a pin shaft, a back frame is arranged on the outer surface of the mounting frame, and a second cylinder is rotatably connected between the back frame and the bottom frame through a pin shaft.

[0016] As a further technical solution, the mounting frame can rotate 45° forward and backward in the connecting groove through the connecting block.

[0017] As a further technical solution, the outer surface of the limiting block and the inner surface of the limiting frame are both tooth-shaped structural surfaces.

[0018] As a further technical solution, both the limiting frame and the through hole are arc-shaped structures.

[0019] The working principle and beneficial effects of the present utility model are as follows:

[0020] 1. In the present utility model, a rotation adjustment assembly is provided. Through the interaction of structures such as the through hole, the connecting rod, the limiting block, the limiting frame, the worm gear and the worm, the central shaft can be manually operated to rotate, so that the rotating disk drives the tool rest to adjust the rotation angle, and after the adjustment, it can be firmly maintained at the current angle without loosening, having very good stability and practicality.

[0021] 2. In the present utility model, a front and rear adjustment assembly is provided. Through the interaction of the connecting groove, the connecting block, the back frame and the second cylinder, the front and rear rotation angle of the mounting frame can be flexibly controlled by the telescopic of the second cylinder, and it can quickly position and keep the angle unchanged, improving the processing flexibility and stability. Description of the Drawings

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is an axonometric view of the present utility model;

[0025] Figure 3 It is an axonometric view of another perspective of the present utility model;

[0026] In the figure: 1, chassis; 2, mounting frame; 3, central axis; 4, rotating disk; 5, rotation adjustment assembly; 5-1, through hole; 5-2, connecting rod; 5-3, limiting block; 5-4, telescopic cylinder; 5-5, overlapping frame; 5-6, limiting frame; 5-7, worm gear; 5-8, worm; 6, mounting assembly; 6-1, outer card slot; 6-2, threaded groove; 6-3, connecting frame; 6-4, fastening bolt; 6-5, positioning column; 7, front and rear adjustment assembly; 7-1, connecting groove; 7-2, connecting block; 7-3, back frame; 7-4, second cylinder. Specific embodiments

[0027] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. 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 in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0028] As Figures 1 to 3 shown, this embodiment proposes a gear hobbing machine tool rest angle adjustment mechanism, including

[0029] a chassis 1 and a mounting frame 2, and the mounting frame 2 is arranged on the chassis 1;

[0030] a front and rear adjustment assembly 7, and the front and rear adjustment assembly 7 is arranged between the chassis 1 and the mounting frame 2;

[0031] a central axis 3 and a rotating disk 4, the central axis 3 is rotatably connected inside the mounting frame 2, and the rotating disk 4 is fixed at one end of the central axis 3;

[0032] a mounting assembly 6, and the mounting assembly 6 is arranged on the rotating disk 4;

[0033] The rotation adjustment assembly 5 is arranged on the mounting frame 2. The rotation adjustment assembly 5 includes a pair of through holes 5-1 which are opened on the surface of the mounting frame 2. The rotating disk 4 is provided with a pair of connecting rods 5-2, and the connecting rods 5-2 are sleeved in the through holes 5-1. One end of the connecting rod 5-2 is fixedly connected with a limiting block 5-3. A pair of telescopic cylinders 5-4 are arranged on the surface of the mounting frame 2. The output end of the telescopic cylinder 5-4 is connected with a lapping frame 5-5. Both ends of the lapping frame 5-5 are fixedly connected with limiting frames 5-6. One end of the central shaft 3 is provided with a worm wheel, and a worm 5-8 is rotatably connected to the surface of the mounting frame 2. The worm 5-8 meshes with the worm wheel.

[0034] In this embodiment, in order to achieve the effect of rotating the angle of the tool rest, the rotation adjustment assembly 5 is designed. Two through holes 5-1 are opened on the surface of the mounting frame 2 around the outside of the central shaft 3. The surface of the mounting frame 2 is provided with connecting rods 5-2 and limiting blocks 5-3. The limiting block 5-3 is located on the back of the mounting frame 2. Two telescopic cylinders 5-4 are also arranged on the back of the mounting frame 2. The output end of the telescopic cylinder 5-4 is connected with a lapping frame 5-5. A limiting frame 5-6 is connected between the lapping frames 5-5 and fits with the limiting block 5-3, which can fix the limiting block 5-3. One end of the central shaft 3 is connected with a worm wheel, and a worm 5-8 is rotatably connected to the surface of the mounting frame 2. The transmission cooperation between the worm 5-8 and the worm wheel can control the rotation of the central shaft 3 to achieve the effect of rotating the angle.

[0035] Furthermore, the installation assembly 6 includes a number of outer card slots 6-1 which are opened on the outer surface of the rotating disk 4 in a circle. A number of threaded grooves 6-2 are opened on the surface of the rotating disk 4. A connecting frame 6-3 is arranged on the surface of the rotating disk 4. A fastening bolt 6-4 is arranged inside the connecting frame 6-3. The fastening bolt 6-4 is screwed and connected with the threaded groove 6-2. A pair of positioning columns 6-5 are arranged at both ends of the outer surface of the connecting frame 6-3. The positioning columns 6-5 are inserted and connected with the outer card slots 6-1.

[0036] In this embodiment, in order to achieve the effect of installing the tool rest and adjusting the initial angle, the installation assembly 6 is designed. A number of outer card slots 6-1 are opened on the outer surface of the rotating disk 4 in a circle, and threaded grooves 6-2 are opened on the surface. A connecting frame 6-3 fixedly connected by a fastening bolt 6-4 is arranged on the surface of the rotating disk 4. Positioning columns 6-5 are arranged on the surface of the connecting frame 6-3. The positioning columns 6-5 can be sleeved into the outer card slots 6-1 for installation according to the initial fixed angle.

[0037] Furthermore, the front and rear adjustment assembly 7 includes a pair of connecting grooves 7-1 which are opened at both ends of the top of the chassis 1. A pair of connecting blocks 7-2 are arranged at the bottom of the mounting frame 2. The connecting blocks 7-2 and the connecting grooves 7-1 are rotatably connected by a pin shaft. A back frame 7-3 is arranged on the outer surface of the mounting frame 2. A second cylinder 7-4 is rotatably connected between the back frame 7-3 and the chassis 1 by a pin shaft.

[0038] In this embodiment, in order to achieve the adjustment effect of the front and rear tilt angles, a front and rear adjustment assembly 7 is designed. Two connecting grooves 7-1 are opened on the surface of the chassis 1, and a connecting block 7-2 is arranged at the bottom of the mounting frame 2. The connecting block 7-2 is rotatably connected to the connecting groove 7-1 through a pin shaft, so that the mounting frame 2 can swing back and forth. A back frame 7-3 is arranged on the back of the mounting frame 2, and a second cylinder 7-4 is connected between the chassis 1 and the back frame 7-3. The back frame 7-3 can be pushed by the telescopic movement of the output end of the second cylinder 7-4, so that the mounting frame 2 can achieve the effect of adjusting the front and rear angles.

[0039] Furthermore, the mounting frame 2 can rotate 45° forward and backward in the connecting groove 7-1 through the connecting block 7-2.

[0040] In this embodiment, through a tilt angle of 45°, different front and rear tilt angles can be flexibly adjusted, and the required machining angle can be quickly positioned.

[0041] Furthermore, the outer surface of the limit block 5-3 and the inner surface of the limit frame 5-6 are both tooth-shaped structural surfaces.

[0042] In this embodiment, through the tooth-shaped structural surface, after the limit frame 5-6 contacts the limit block 5-3, a locking and limiting effect can be achieved, so that the rotating disk 4 cannot rotate.

[0043] Furthermore, both the limit frame 5-6 and the through hole 5-1 are arc-shaped structures.

[0044] In this embodiment, through the arc-shaped structure, when the connecting rod 5-2 moves in the through hole 5-1, it can keep the same radian as the limit frame 5-6, ensuring the fitting effect of the tooth surfaces.

[0045] When in use, install the tool rest on the connecting frame 6-3. According to the initial angle, insert the connecting frame 6-3 into the outer card slot 6-1 outside the rotating disk 4 through the positioning post 6-5, and then install the fastening bolt 6-4 and fixedly connect it to the thread groove 6-2. When rotating and adjusting the angle, drive the telescopic cylinder 5-4 to push the overlapping frame 5-5 outwards, so that the limit frame 5-6 is separated from the limit block 5-3. Then turn the worm 5-8 to drive the worm gear to rotate, so that the rotating disk 4 rotates. After adjusting the angle, control the limit frame 5-6 to reset, and lock the limit block 5-3 to maintain the current angle. When swinging back and forth, directly start the second cylinder 7-4. When the output end of the second cylinder 7-4 extends, the mounting frame 2 will tilt forward, and when it contracts, it will tilt backward, and the angle can be flexibly adjusted.

[0046] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear hobbing machine tool rest angle adjustment mechanism, characterized in that, including a chassis (1) and a mounting frame (2), the mounting frame (2) being arranged on the chassis (1); a front and rear adjustment component (7), the front and rear adjustment component (7) being arranged between the chassis (1) and the mounting frame (2); a central shaft (3) and a rotating disk (4), the central shaft (3) being rotatably connected within the mounting frame (2), the rotating disk (4) being fixed to one end of the central shaft (3); a mounting component (6), the mounting component (6) being arranged on the rotating disk (4); a rotation adjustment component (5), the rotation adjustment component (5) being arranged on the mounting frame (2), the rotation adjustment component (5) including a pair of through holes (5-1), the through holes (5-1) being opened on the surface of the mounting frame (2), the rotating disk (4) being provided with a pair of connecting rods (5-2), the connecting rods (5-2) being sleeved within the through holes (5-1).

2. The indexing head angle adjustment mechanism of a hobbing machine according to claim 1, characterized in that, One end of the connecting rod (5-2) is fixedly connected with a limit block (5-3), a pair of telescopic cylinders (5-4) are arranged on the surface of the mounting frame (2), the output end of the telescopic cylinder (5-4) is connected with a lapping frame (5-5), both ends of the lapping frame (5-5) are fixedly connected with limit frames (5-6), one end of the central shaft (3) is provided with a worm gear (5-7), and a worm (5-8) is rotatably connected on the surface of the mounting frame (2), the worm (5-8) being meshed with the worm gear (5-7).

3. The angle adjustment mechanism of the hob headstock of the hobbing machine according to claim 1, characterized in that, The mounting component (6) includes a plurality of outer card slots (6-1), the outer card slots (6-1) being opened on the outer surface of the rotating disk (4) in a circumferential manner, a plurality of threaded grooves (6-2) are opened on the surface of the rotating disk (4), and a connecting frame (6-3) is arranged on the surface of the rotating disk (4).

4. A gear hobbing machine tool rest angle adjustment mechanism according to claim 3, characterized in that, A fastening bolt (6-4) is arranged within the connecting frame (6-3), the fastening bolt (6-4) being screwed and connected with the threaded groove (6-2), a pair of positioning columns (6-5) are arranged at both ends of the outer surface of the connecting frame (6-3), and the positioning columns (6-5) are inserted and connected with the outer card slots (6-1).

5. A gear hobbing machine tool rest angle adjustment mechanism according to claim 1, characterized in that, The front and rear adjustment component (7) includes a pair of connecting grooves (7-1), the connecting grooves (7-1) being opened at both ends of the top of the chassis (1), a pair of connecting blocks (7-2) are arranged at the bottom of the mounting frame (2), the connecting blocks (7-2) being rotatably connected with the connecting grooves (7-1) through a pin shaft, a back frame (7-3) is arranged on the outer surface of the mounting frame (2), and a second cylinder (7-4) is rotatably connected between the back frame (7-3) and the chassis (1) through a pin shaft.

6. The indexing head angle adjusting mechanism of a hobbing machine according to claim 5, wherein The mounting frame (2) can rotate 45° both forward and backward within the connecting groove (7-1) through the connecting block (7-2).

7. A gear hobbing machine tool rest angle adjustment mechanism according to claim 2, characterized in that, Both the outer surface of the limit block (5-3) and the inner surface of the limit frame (5-6) are tooth-shaped structural surfaces.

8. A gear hobbing machine tool rest angle adjustment mechanism according to claim 2, characterized in that, Both the limit frame (5-6) and the through hole (5-1) are arc-shaped structures.

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