CN219293460U

CN219293460U - Hob rest for numerically controlled hob grinding in sharpening workshop

Info

Publication number: CN219293460U
Application number: CN202320162476.XU
Authority: CN
Inventors: 朱海浪; 崔志利; 张慧龙; 朱永亮; 袁振东; 张启龙
Original assignee: Luoyang Geruide Heavy Machinery Co ltd
Current assignee: Luoyang Geruide Heavy Machinery Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-07-04
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a hob rest for a numerical control gear hobbing machine of a sharpening workshop, which comprises two bottom plates symmetrically arranged on a workbench; an adjusting part is arranged on the top surface of each bottom plate; the upper part of the adjusting part is connected with a bracket; the bracket is provided with a hob which is transversely placed; the adjusting part comprises a lifting screw rod and an adjusting block which are arranged on the top surface of the bottom plate side by side and fixedly connected with the same. The hob cutter frame is simple in structure and convenient to operate, and an operator can carry out the assembly and disassembly operation of the hob cutter by one person by using the hob cutter frame; the tool rest can realize the overall front-back adjustment of the tool rest through the telescopic bottom plate so as to be suitable for grinding machines with different specifications; the adjusting part that sets up simultaneously can adjust the bracket from top to bottom, can satisfy hobbing cutter and the sharpening mandrel of different specifications, realizes a multi-purpose, has also reduced the potential safety hazard in the operation when improving work efficiency.

Description

Hob rest for numerically controlled hob grinding in sharpening workshop

Technical Field

The utility model relates to the field of mechanical equipment, in particular to a hob rest for numerical control hob grinding in a sharpening workshop.

Background

In the machining industry, a gear hobbing machine is the most widely applied machine tool in gear machining machine tools, and can cut straight-tooth and helical-tooth cylindrical gears, worm gears, chain wheels and the like; a gear processing machine tool for processing straight-tooth, helical and herringbone tooth cylindrical gears and worm gears by a hob according to a generating method. Currently, a numerical control hob grinding machine (HSP 250 CNC) is available in a sharpening room, the sharpening precision of the numerical control hob grinding machine is one level higher than that of a common hob grinding machine (M6420B), the numerical control hob grinding machine is suitable for AA-level hob sharpening, the hob specification of a hob used on a numerical control hob grinding machine in a main sharpening workshop of the machine is generally 90mm multiplied by 180mm (the external diameter is equal to the length), the length of a sharpening mandrel is 470mm, the weight of a single hob is about 8 kg, the total weight of the hob is about 12 kg when the hob is arranged on the sharpening mandrel, and the following problems occur in the sharpening process: when the hob is assembled and disassembled, two people are needed to cooperate, one person lifts the hob by two hands to align the central hole of the mandrel with the left center and the right center of the machine tool, the shifting fork is aligned with the shifting fork groove, and the other person treads the hydraulic pedal to enable the center of the machine tool to move, so that workpieces are clamped, the operating time is long, the efficiency is low, the assembly and disassembly are inconvenient, and the labor intensity is high; meanwhile, when an operator wears the arm cantilever of the sharpening worker too long (the length of the cantilever is about 65 cm), the operator steps on the workbench to incline forwards, and potential safety hazards exist.

Disclosure of Invention

The hob rest for numerical control hob grinding in the sharpening workshop is simple in structure, convenient to operate, capable of improving machining efficiency and reducing potential safety hazards.

The utility model adopts the following technical scheme: a hob rest for numerical control hob grinding of a sharpening workshop comprises two bottom plates symmetrically arranged on a workbench; an adjusting part is arranged on the top surface of each bottom plate; the upper part of the adjusting part is connected with a bracket; the bracket is provided with a hob which is transversely placed; the adjusting part comprises a lifting screw rod and an adjusting block which are arranged on the top surface of the bottom plate side by side and fixedly connected with the same.

The whole bottom plate is a rectangular telescopic adjusting bottom plate, the front section of the bottom plate is a telescopic section, and the middle and rear sections of the bottom plate are fixed sections; the plate surface width of the telescopic section is smaller than that of the fixed section, and mounting holes with mutually corresponding positions are formed in the end faces of one side of the telescopic section and one side of the fixed section; and adjusting screws for performing telescopic fixation on the adjusting plates are arranged in the mounting holes.

The front end and the rear end of the bottom plate are fixedly connected with fixing plates perpendicular to the plate surface; and the fixing plates are provided with positioning screws for positioning.

The whole adjusting block is a rectangular block, one side end face of the adjusting block is provided with a trapezoid groove, and a trapezoid adjusting plate is inserted into the groove; the tail end of the adjusting plate is fixedly connected to the bottom of the bracket, and the adjusting plate can move up and down in the groove; the adjusting plate is provided with a strip-shaped through groove which is obliquely arranged.

Uniformly distributed through holes are formed in the trapezoid grooves of the adjusting blocks; the positions of the through holes are mutually matched with the positions of the strip-shaped through grooves on the adjusting block.

The adjusting block and the adjusting plate are also provided with fastening bolts for positioning the position of the adjusting plate in a penetrating way.

The end part of the threaded rod of the lifting screw rod is sleeved with a nut for positioning.

The two ends of the bracket are fixedly connected with bosses which extend upwards.

By implementing the utility model, the good use effect is achieved: the hob rest has simple structure and convenient operation, and an operator can use the hob rest to carry out the loading and unloading operation of the hob by one person; the tool rest can realize the overall front-back adjustment of the tool rest through the telescopic bottom plate so as to be suitable for grinding machines with different specifications; the adjusting part that sets up simultaneously can adjust the bracket from top to bottom, can satisfy hobbing cutter and the sharpening mandrel of different specifications, realizes a multi-purpose, has also reduced the potential safety hazard in the operation when improving work efficiency.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the bracket in the present utility model.

Fig. 3 is a schematic structural view of the regulating block in the present utility model.

In the figure: 1. the device comprises a bottom plate, 1-1, a telescopic section, 1-2, a fixed section, 1-3, a mounting hole, 1-4, an adjusting screw, 2, a bracket, 3, a hob, 4, a lifting screw rod, 5, an adjusting block, 6, a fixed plate, 7, a set screw, 8, an adjusting plate, 9, a strip-shaped through groove, 10, a through hole, 11, a fastening bolt, 12, a nut, 13 and a boss.

Description of the embodiments

The utility model is described with reference to the accompanying drawings.

The hob rest for numerical control hob grinding of the sharpening workshop as shown in fig. 1-3 comprises two bottom plates 1 symmetrically arranged on a workbench; the top surface of each bottom plate 1 is provided with an adjusting part; the upper part of the adjusting part is connected with a bracket 2; the bracket 2 is provided with a hob 3 which is transversely arranged; two ends of the bracket 2 are fixedly connected with bosses 13 extending upwards; the boss 13 plays a limiting role, and realizes the rapid positioning of the center and the center hole while limiting the position of the hob 3, so that the collision between the mandrel and the grinding wheel is avoided; the adjusting part comprises a lifting screw rod 4 and an adjusting block 5 which are arranged on the top surface of the bottom plate 1 side by side and fixedly connected with the same.

The whole bottom plate 1 is a rectangular telescopic adjusting bottom plate, the front section of the bottom plate is a telescopic section 1-1, and the middle and rear sections of the bottom plate are fixed sections 1-2; the plate width of the telescopic section 1-1 is smaller than that of the fixed section 1-2, and mounting holes 1-3 which are mutually corresponding in position are formed in the end faces of one side of the telescopic section 1-1 and one side of the fixed section 1-2; an adjusting screw 1-4 for stretching and fixing the adjusting plate is arranged in the mounting hole 1-3; the telescopic bottom plate 1 can realize the overall front-back adjustment of the tool rest, so as to be suitable for grinding machine work tables with different specifications and realize the purpose of one frame for multiple purposes. The front end and the rear end of the bottom plate 1 are fixedly connected with a fixed plate 6 vertical to the plate surface; the fixing plates 6 are provided with positioning screws 7 for positioning; the fixing plate 6 is used for being clamped on the edge of a workbench of a machine tool, and meanwhile, the positioning screw 7 is screwed on the fixing plate, so that the positioning screw 7 is tightly propped against the edge of the workbench to achieve the purpose of fixing the bottom plate 1. The whole adjusting block 5 is a rectangular block, one side end surface of the adjusting block is provided with a trapezoid groove, and a trapezoid adjusting plate 8 is inserted into the groove; the tail end of the adjusting plate 8 is fixedly connected to the bottom of the bracket 2, and the adjusting plate 8 can move up and down in the groove; the adjusting plate 8 is provided with a strip-shaped through groove 9 which is obliquely arranged. Uniformly distributed through holes 10 are formed in the trapezoid grooves of the adjusting blocks 5; the position of the through hole 10 is mutually matched with the position of the strip-shaped through groove 9 on the regulating block 5; the adjusting block 5 and the adjusting plate 8 are also provided with fastening bolts 11 for positioning the position of the adjusting plate 8. When the hob 3 is installed, the hob 3 needs to be moved to the front end of the bracket 2, so that the front end is stressed to be increased, and in order to achieve the purpose of adjusting the front end of the bracket up and down, namely, an adjusting plate 8 is arranged below the bracket and is matched with the adjusting block 5 for use, so that the adjusting plate 8 can slide in a groove on the adjusting block 5, and when the hob is adjusted to a required height, a fastening bolt 11 on the hob can be screwed for positioning and fixing. The threaded rod end of the lifting screw rod 4 is sleeved with a nut 12 for positioning. The lifting screw rod 4 can be used for adjusting the height of the rear end of the bracket 2 by rotating the lifting screw rod 4, and the lifting screw rod 4 can be fixed by screwing the positioning nut 12 at the lower part of the screw rod when the height is adjusted to be suitable for the height, namely, the up-and-down adjustment of the rear end of the bracket 2 is realized.

When the device is used, firstly, after the bottom plate 1 is telescopically regulated according to the width of an operation table, the fixing plate 6 is clamped at the edge of a workbench of a machine tool, meanwhile, the fixing plate is fixed by tightening a set screw 7 on the fixing plate, according to the use height of the hob 3, the front end and the rear end of the bracket 2 are respectively regulated by regulating the lifting screw 4, the regulating block 5 and the regulating plate 8, after the height is regulated, the hob 3 is placed on the bracket, the sharpening mandrel provided with the hob is placed at one end of the bracket which is close to the hob, then the shifting fork of the mandrel is pushed to enter a shifting fork groove, the left center props against the central hole of the mandrel, and simultaneously, the hydraulic pedal is stepped on by feet to enable the tailstock to prop against the mandrel, so that the whole operation is completed.

The above-described embodiments are merely illustrative of preferred modes of the utility model, but the utility model is not limited to the above-described embodiments, which are merely illustrative, not restrictive, and many forms may be made by those skilled in the art without departing from the spirit of the utility model and the scope of the claims, which are all within the protection of the utility model.

Claims

1. A hob rest for numerical control hob grinding of a sharpening workshop comprises two bottom plates (1) symmetrically arranged on a workbench; the method is characterized in that: the top surface of each bottom plate (1) is provided with an adjusting part; the upper part of the adjusting part is connected with a bracket (2); a hob (3) which is transversely placed is arranged on the bracket (2); the adjusting part comprises a lifting screw rod (4) and an adjusting block (5) which are arranged on the top surface of the bottom plate (1) side by side and fixedly connected with the lifting screw rod.

2. The hob holder for numerically controlled hob grinding in a sharpening shop according to claim 1, characterized in that: the whole bottom plate (1) is a rectangular telescopic adjusting bottom plate, the front section of the adjusting bottom plate is a telescopic section (1-1), and the middle and rear sections of the adjusting bottom plate are fixed sections (1-2); the plate surface width of the telescopic section (1-1) is smaller than that of the fixed section (1-2), and mounting holes (1-3) with mutually corresponding positions are formed in the end faces of one side of the telescopic section (1-1) and one side of the fixed section (1-2); an adjusting screw (1-4) for stretching and fixing the adjusting plate (8) is arranged in the mounting hole (1-3).

3. The hob holder for numerically controlled hob grinding in a sharpening shop according to claim 2, characterized in that: the front end and the rear end of the bottom plate (1) are fixedly connected with a fixed plate (6) perpendicular to the plate surface; and the fixing plates (6) are provided with positioning screws (7) for positioning.

4. The hob holder for numerically controlled hob grinding in a sharpening shop according to claim 1, characterized in that: the whole adjusting block (5) is a rectangular block, one side end surface of the adjusting block is provided with a trapezoid groove, and a trapezoid adjusting plate (8) is inserted into the groove; the tail end of the adjusting plate (8) is fixedly connected to the bottom of the bracket (2), and the adjusting plate (8) can move up and down in the groove; the adjusting plate (8) is provided with a strip-shaped through groove (9) which is obliquely arranged.

5. The hob head for numerically controlled hob grinding in a sharpening shop according to claim 4, characterized in that: uniformly distributed through holes (10) are formed in the trapezoid grooves of the adjusting blocks (5); the position of the through hole (10) is mutually matched with the position of the strip-shaped through groove (9) on the regulating block (5).

6. The hob head for numerically controlled hob grinding in a sharpening shop according to claim 4, characterized in that: the adjusting block (5) and the adjusting plate (8) are also provided with fastening bolts (11) for positioning the position of the adjusting plate (8).

7. The hob holder for numerically controlled hob grinding in a sharpening shop according to claim 1, characterized in that: the end part of the threaded rod of the lifting screw rod (4) is sleeved with a nut (12) for positioning.

8. The hob holder for numerically controlled hob grinding in a sharpening shop according to claim 1, characterized in that: two ends of the bracket (2) are fixedly connected with bosses (13) extending upwards.