CN212885496U

CN212885496U - Novel gear tooth fillet mill frock

Info

Publication number: CN212885496U
Application number: CN202021527637.3U
Authority: CN
Inventors: 罗瑞斌
Original assignee: Shenzhen Guogong Technology Co ltd
Current assignee: Shenzhen Guogong Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-06
Anticipated expiration: 2030-07-28

Abstract

The utility model is suitable for a mill the technical field, provide a novel gear teeth of a cogwheel fillet mills frock, include from the first bottom plate, second bottom plate and the third bottom plate of supreme down in proper order in vertical direction; the lower side of the first bottom plate is provided with a trapezoidal sliding block which can be connected with a trapezoidal sliding chute of a machine tool workbench, and the upper side of the first bottom plate is provided with a movement mechanism which can enable the second bottom plate to move left and right and back and forth on a horizontal plane relative to the first bottom plate; the upper side of the second bottom plate is provided with a lifting mechanism which can enable the third bottom plate to move up and down and incline relative to the second bottom plate. Through the structure, the adjustment of the machined gear relative to the cutter position of the milling machine can be realized on the premise of not changing the internal structure of the existing common milling machine, so that the problems of poor economy, poor operability and non-ideal machining effect of machining the gear tooth fillet of the gear by the common milling machine under the condition of the prior art are solved.

Description

Novel gear tooth fillet mill frock

Technical Field

The utility model belongs to the technical field of mill, especially, relate to a gear teeth of a cogwheel fillet mills frock.

Background

Milling is a mechanical processing method for processing the surface of an object by using a milling cutter as a cutter. The milling machining has high production efficiency and higher machining precision, and is commonly used for machining structures with complex shapes, such as gear tooth round corners and the like of gears. However, for a common milling machine, in the milling process, the workbench is usually fixed, the milling cutter can only vertically move relative to the workbench and cannot move left and right on the horizontal plane, and the cutter cannot incline, so that the working efficiency of the common milling machine is reduced, and the processing quality of equipment is reduced. In order to solve the problems, chinese patent publication No. CN201921898273.7 discloses a gear tooth fillet milling tool, which includes a box, a tool system capable of moving forward, backward, leftward and rightward on a horizontal plane, and a workbench capable of moving up and down in a vertical direction. The device's advantage has improved the efficiency of milling to a certain extent, can tentatively accomplish the milling process to gear teeth of a cogwheel fillet. The device still has obvious defects, firstly, for an existing common milling machine, the structure of a cutter system in the machine tool needs to be improved to adapt to the milling processing of the gear tooth round corner of the gear, and the economy is poor; secondly, the device adopts two milling cutters in front, back, left and right dimensions of a horizontal plane, so that the operability is poor; the machine tool workbench cannot be inclined, and the machining effect on complex gears is not ideal. It can be seen that the above-mentioned problems with the prior art are in need of improvement.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, the utility model aims at providing a novel gear teeth of a cogwheel fillet mills frock aims at solving the ordinary milling machine processing gear teeth of a cogwheel fillet economic nature relatively poor, and maneuverability is relatively poor, the unsatisfactory problem of processing effect.

The utility model is realized in such a way, a novel gear tooth fillet milling tool is characterized by comprising a first bottom plate, a second bottom plate and a third bottom plate which are arranged from bottom to top in sequence in the vertical direction; the lower side of the first bottom plate is provided with a trapezoidal sliding block which can be connected with a trapezoidal sliding chute of a machine tool workbench, and the upper side of the first bottom plate is provided with a movement mechanism which can enable the second bottom plate to move left and right and back and forth on a horizontal plane relative to the first bottom plate; the upper side of the second bottom plate is provided with a lifting mechanism which can enable the third bottom plate to move up and down and incline relative to the second bottom plate; the motion mechanism is electrically connected with an external power supply.

Furthermore, the motion mechanism is a lead screw nut transmission mechanism driven by a stepping motor, and comprises the stepping motor, a lead screw and a transmission nut which are arranged on the same horizontal plane; the output shaft end of the stepping motor is connected with the screw rod through a coupler, and the transmission nut is screwed into the screw rod; the stepping motor is connected with the first bottom plate through a bolt, and the transmission nut is connected with the second bottom plate through an intermediate connecting mechanism.

Furthermore, the lifting mechanism is a thread transmission mechanism and comprises a sleeve, a threaded rod and a bearing nut, wherein the sleeve, the threaded rod and the bearing nut are arranged on the same vertical plane and have unthreaded inner walls; the bearing nut is screwed into the threaded rod, and the threaded rod is inserted into the sleeve; the sleeve is welded with the second bottom plate, and the threaded rod is connected with the third bottom plate through a middle hinge mechanism.

Furthermore, the intermediate connecting mechanism comprises a piston rod and a piston cylinder; the piston cylinder is welded with the transmission nut, and the piston rod is welded with the second bottom plate.

Furthermore, the middle hinge mechanism is a spherical hinge mechanism and comprises a ball head and a spherical hinge base; the spherical hinge base is welded with the threaded rod, and the ball head is welded with the third bottom plate.

Furthermore, the upper side of the third bottom plate is provided with a trapezoidal sliding groove used for being connected with an external special clamp or a universal clamp.

Further, the first bottom plate and the trapezoidal sliding block are connected through screws.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the design idea of the utility model is that the new attached small workbench, namely the structure of the patent, is installed on the existing machine tool workbench to realize the conversion of the position of the machining workpiece relative to the cutter on the premise of not changing the internal structure of the existing common machine tool, so that the gear tooth fillet milling machine has better economical efficiency for milling the gear tooth fillet by using the existing common milling machine; secondly, because the utility model does not change the original cutter system of the milling machine, namely, still adopts one cutter of the original milling machine, the milling machine still has better operability of the original machine tool; thirdly, because the utility model discloses an install in the second bottom plate with between the third bottom plate lifting mechanism, through the regulation of lifting mechanism lifting height can be realized the third bottom plate for the slope of second bottom plate, and then the processing to complicated gear teeth of a cogwheel fillet is realized more easily, and the processing effect is more ideal.

Drawings

FIG. 1 is a schematic structural diagram of a prior art Chinese patent publication No. CN 201921898273.7;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the exercise structure of the present invention;

fig. 4 is a schematic structural diagram of the lifting mechanism of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

With reference to fig. 2, 3 and 4, the present invention is implemented as follows: a novel gear tooth fillet milling tool comprises a first bottom plate 1, a second bottom plate 2 and a third bottom plate 3 which are sequentially arranged from bottom to top in the vertical direction; a trapezoidal sliding block 4 which can be connected with a trapezoidal sliding chute of a machine tool workbench is arranged at the lower side of the first bottom plate 1, and a screw nut transmission mechanism 5 which can enable the second bottom plate 2 to move left and right and back and forth on a horizontal plane relative to the first bottom plate 1 is arranged at the upper side of the first bottom plate 1; the upper side of the second bottom plate 2 is provided with a thread transmission mechanism 6 which can lead the third bottom plate 3 to move up and down and incline relative to the second bottom plate 2; the feed screw nut transmission mechanism 5 is electrically connected with an external power supply.

The screw nut transmission mechanism 5 comprises a stepping motor 51, a bearing seat 52 with a built-in bearing, a screw 53, a slide rail 54 and a transmission nut 55 with a slide block, which are positioned on the same horizontal plane. The transmission nut 55 is connected with the second bottom plate 2 through the intermediate connecting mechanism 7, and the stepping motor 51, the bearing seat 52 and the slide rail 54 are all fixed on the first bottom plate 1 through bolts; the screw 53 is connected with the stepping motor 51 through a common rigid coupling, the smooth section of the screw 53 is matched with the bearing inner ring of the bearing seat 52, the transmission nut 55 is screwed into the screw 53, and the slide block of the transmission nut 55 is matched with the slide rail 54. The use of the bearing seat 52, the slide rail 54 and the transmission nut 55 with the slide block enhances the stability of the screw rod 53, and reduces the risk that the screw rod 53 is bent to influence the processing quality of parts due to overweight parts to be processed or overlarge cutting force of a cutter; meanwhile, the matching of the sliding block and the sliding rail is adopted, so that the friction force on the horizontal plane is not too large while the pressure in the vertical direction can be borne, and further the starting power of the stepping motor 51 does not need to be too large.

The screw transmission mechanism 6 comprises a sleeve 61, a bearing nut 62 and a threaded rod 63, wherein the inner wall of the sleeve 61 is not threaded, and the bearing nut and the threaded rod are located on the same vertical plane. The bearing nut 62 is screwed into the threaded rod 63, the threaded rod 63 being inserted into the sleeve 61; the sleeve 61 is welded to the second base plate 2, and the threaded rod 63 is connected to the third base plate 3 by an intermediate hinge mechanism 8. The simple thread transmission mechanism composed of the bearing nut 62 and the threaded rod 61 can meet functional requirements, and has the advantages of high reliability and simplicity and convenience in installation.

The intermediate connecting mechanism 7 comprises two parts, namely a piston cylinder 71 and a piston rod 72. The piston cylinder 72 is welded to the drive nut 55, and the piston rod 71 is welded to the second base plate 2. The use of the piston pair can ensure the function of the second bottom plate 2 moving back and forth and left and right on the horizontal plane relative to the first flat plate 1. The middle spherical hinge mechanism 8 comprises a spherical hinge base 81 and a ball head 82. The spherical hinge base 81 is welded with the threaded rod 63, and the ball head 82 is welded with the third bottom plate 3. The use of the ball joint mechanism 8 ensures the tilting function of the third plate 3 with respect to the second base plate 2.

In addition, the utility model discloses the structural detail that needs to supply has: the upper side of the third bottom plate 3 is provided with a trapezoidal sliding chute which is used for being connected with other external special fixtures or universal fixtures; the first bottom plate 1 is connected with the trapezoidal sliding block 4 through screws.

To this embodiment, the utility model discloses a use method does: firstly, the whole structure of the utility model is arranged on the existing milling machine workbench through the trapezoidal slide block 4 at the lower side of the first bottom plate 1; secondly, a special fixture and a general fixture for fixing the processed gear are arranged on the utility model through the trapezoidal sliding groove on the upper side of the third bottom plate 3; thirdly, the movement of the screw nut transmission mechanism 5 can be controlled by controlling the rotation of the stepping motor 51, so that the left-right front-back movement of the machined gear relative to the horizontal plane of the milling machine cutter is realized; finally, the threaded transmission 6 can be controlled by adjusting the bearing nut 62, so that the gear to be machined can move up and down and tilt relative to the milling machine tool in a vertical plane. The adjustment of the position of the machined gear relative to the milling machine tool can be completed through the steps, and the smooth milling of the gear tooth fillet of the gear is ensured.

To this embodiment, compare with prior art, the beneficial effects of the utility model are that: firstly, the design idea of the utility model is that the new attached small workbench, namely the structure of the present patent, is installed on the existing machine tool workbench to realize the conversion of the position of the machining workpiece relative to the cutter on the premise of not changing the internal structure of the existing common machine tool, so that the existing common milling machine has better economical efficiency for milling the gear tooth fillet; secondly, because the utility model does not change the original cutter system of the milling machine, namely, still adopts one cutter of the original milling machine, the milling machine still has better operability of the original machine tool; thirdly, because the utility model discloses an install the screw drive mechanism 6 of 3 between second bottom plate 2 and the third bottom plate, through screw drive mechanism 6's regulation, can realize third bottom plate 3 for the slope of second bottom plate 2, and then easily realize the processing to complicated gear teeth of a cogwheel fillet, the processing effect is more ideal.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A novel gear tooth fillet milling tool is characterized by comprising a first bottom plate (1), a second bottom plate (2) and a third bottom plate (3) which are sequentially arranged from bottom to top in the vertical direction; a trapezoidal sliding block (4) which can be connected with a trapezoidal sliding groove of a machine tool workbench is arranged on the lower side of the first bottom plate (1), and a moving mechanism (5) which can enable the second bottom plate (2) to move left and right and back and forth on a horizontal plane relative to the first bottom plate (1) is arranged on the upper side of the first bottom plate (1); a lifting mechanism (6) which can enable the third bottom plate (3) to move up and down and incline relative to the second bottom plate (2) is arranged on the upper side of the second bottom plate (2); the movement mechanism (5) is electrically connected with an external power supply.

2. The novel gear tooth fillet milling tool according to claim 1, wherein the moving mechanism (5) is a lead screw nut transmission mechanism driven by a stepping motor, and comprises a stepping motor (51), a lead screw (53) and a transmission nut (55) which are arranged on the same horizontal plane; the output shaft end of the stepping motor (51) is connected with the screw rod (53) through a coupler, and the transmission nut (55) is screwed into the screw rod (53); the stepping motor (51) is connected with the first bottom plate (1) through a bolt, and the transmission nut (55) is connected with the second bottom plate (2) through an intermediate connecting mechanism (7).

3. The novel gear tooth fillet milling tool according to claim 1, wherein the lifting mechanism (6) is a thread transmission mechanism and comprises a sleeve (61), a threaded rod (63) and a bearing nut (62), wherein the sleeve (61), the threaded rod (63) and the bearing nut are arranged on the same vertical plane and have unthreaded inner walls; the bearing nut (62) is screwed into the threaded rod (63), the threaded rod (63) being inserted into the sleeve (61); the sleeve (61) is welded with the second bottom plate (2), and the threaded rod (63) is connected with the third bottom plate (3) through an intermediate hinge mechanism (8).

4. The novel gear tooth fillet milling tool according to claim 2, wherein the intermediate connecting mechanism (7) comprises a piston rod (72) and a piston cylinder (71); the piston cylinder (71) is welded with the transmission nut (55), and the piston rod (72) is welded with the second bottom plate (2).

5. The novel gear tooth fillet milling tool according to claim 3, wherein the middle hinge mechanism (8) is a spherical hinge mechanism and comprises a ball head (82) and a spherical hinge base (81); the spherical hinge base (81) is welded with the threaded rod (63), and the ball head (82) is welded with the third bottom plate (3).

6. The novel gear tooth fillet milling tool according to claim 1, wherein a trapezoidal sliding groove used for being connected with an external special fixture or a universal fixture is formed in the upper side of the third bottom plate (3).

7. The novel gear tooth fillet milling tool according to claim 1, wherein the first base plate (1) is connected with the trapezoidal sliding block (4) through a screw.