CN110449920B

CN110449920B - Rotary workbench of numerical control milling machine

Info

Publication number: CN110449920B
Application number: CN201910785621.8A
Authority: CN
Inventors: 韩年珍; 邱晨健; 程东华
Original assignee: Hexian Longsheng Precision Machinery Co ltd
Current assignee: Hexian Longsheng Precision Machinery Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2021-05-11
Anticipated expiration: 2039-08-23
Also published as: CN110449920A

Abstract

The invention discloses a rotary worktable of a numerical control milling machine, which comprises a support box, wherein a double-shaft motor is arranged in the support box, a first rotating shaft and a second rotating shaft are respectively arranged at two ends of the double-shaft motor, a trapezoidal support surface is arranged at the upper part of the support box, a first rotary worktable, a second rotary worktable and a third rotary worktable are arranged on the trapezoidal support surface, the first rotating shaft penetrates through the support box and is fixed with the first rotary worktable, a driving bevel gear is fixed on the second rotating shaft, the second rotary worktable and the third rotary worktable are respectively connected with a driven shaft penetrating through the support box, the driven bevel gear at the end part of the driven shaft is mutually meshed with the driving bevel gear, a support ring is fixed at the lower side of a bottom plate of the support box, a protective cover is screwed at the outer side of the support ring, and a. The invention can drive three rotary working tables at the same time, and has high efficiency; the gear transmission mechanism is arranged on the outer side of the supporting box, so that the maintenance is convenient; when the double-shaft motor works, the fan blades are driven to rotate, and wind power generated by the rotation of the fan blades can be used for cooling and radiating.

Description

Rotary workbench of numerical control milling machine

Technical Field

The invention relates to the technical field of numerical control milling machines, in particular to a rotary workbench of a numerical control milling machine.

Background

In the field of machine tool machining technology, rotary platforms are widely used. The rotary operation platform pulls the gear at the bottom of the platform to rotate through the traction gear, and can quickly realize the rotation of a workpiece so as to facilitate mechanical processing. However, if the workpiece is convenient to disassemble and the machining and the disassembling are carried out synchronously, the radial size of the rotary platform is large, and the rotary platform is heavy to ensure the rigidity, so that the cost is not saved, and the space resource is not saved.

Therefore, the patent specification with the publication number of CN109249226A discloses a rotary workbench of a numerically controlled milling machine, which comprises a rotary mechanism, a clamping mechanism, a driving mechanism and a base, wherein the rotary mechanism realizes the intermittent rotation of a platform through the translation of a sliding seat, the clamping mechanism is used for clamping the rotary platform and ensuring the processing rigidity, the driving mechanism is used for driving the rotary mechanism to perform linear reciprocating motion and providing clamping force for the clamping mechanism, and the base is used for bearing the rotary mechanism, the clamping mechanism and the driving mechanism. The rotary workbench of the numerical control milling machine has the characteristics of compact structure, low cost, single power source, rapid positioning, convenient disassembly and synchronous disassembly, and can be used for assembling and disassembling workpieces by using a mechanical arm in a matched assembly line, so that the machining efficiency is obviously improved. The rotary workbench of the numerical control milling machine has the defects in the use process, firstly, the driving mechanism can only drive one workbench, but can not drive three workbenches simultaneously, and the efficiency is low; secondly, it can not carry out effectual cooling heat dissipation at the during operation.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provides a rotary workbench of a numerical control milling machine.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

a rotary worktable of a numerical control milling machine comprises a supporting box, a double-shaft motor is arranged in the supporting box, a first rotating shaft and a second rotating shaft are respectively arranged at two ends of the double-shaft motor, a trapezoidal supporting surface is arranged at the upper part of the supporting box, the first rotating worktable is placed on the supporting surface at the middle part of the trapezoidal supporting surface, the second rotating worktable and the third rotating worktable are respectively arranged on the supporting surfaces at two sides, the first rotating shaft penetrates through the supporting box and is fixed with the first rotating worktable, the second rotating shaft penetrates through the supporting box, a driving bevel gear is fixed on a shaft body positioned outside the supporting box, driven shafts penetrating through the supporting box are respectively connected with the second rotating worktable and the third rotating worktable, driven bevel gears are fixed at the end parts of the driven shafts positioned outside the supporting box and are mutually meshed with the driving bevel gears, an air inlet is formed in the bottom plate of the supporting box, a clapboard is arranged in the supporting box and between the double-shaft motor and the driven shaft, a first air guide hole is arranged at the position of the clapboard close to the first rotary worktable, a support ring is fixed on the lower side of the bottom plate of the support box, a truncated cone-shaped groove with a narrow top and a wide bottom is arranged in the support ring, a plate body of the bottom plate of the supporting box, which is positioned in the circular truncated cone-shaped groove, is provided with a through hole matched with the second rotating shaft and a plurality of second air guide holes surrounding the periphery of the through hole, the inner wall of the support ring, which is positioned on the circular truncated cone-shaped groove, is symmetrically provided with guide holes matched with the driven shaft, the outer side of the supporting ring is screwed with a protective cover which consists of a cylindrical pipe and an end plate, the inner side of the end plate is fixed with a positioning block with a positioning groove, the end plate is evenly provided with exhaust holes around the positioning block, the second rotating shaft is located on the outer side of the driving bevel gear and is further fixedly provided with a mounting ring, and a plurality of fan blades are uniformly fixed on the periphery of the mounting ring.

Furthermore, in the above-mentioned numerically controlled fraise machine rotary table, the axis of the first rotary table and the axis of the first rotating shaft coincide with each other; and the respective axes of the second rotary worktable and the third rotary worktable are superposed with the axis of the corresponding driven shaft.

Furthermore, in the above-mentioned numerically controlled fraise machine swivel work head, the air inlet and exhaust hole department are equipped with dustproof filter screen.

Furthermore, in the above-mentioned numerically controlled fraise machine swivel work head, the inlet port all is located the periphery of support ring.

Further, in the above-mentioned numerically controlled fraise machine swivel work head, the outside of support ring is equipped with the external screw thread, the cylindrical pipe inboard of protection casing is equipped with the internal thread with external screw thread complex.

Further, in the above-mentioned numerically controlled fraise machine swivel work head, the collar is fixed with the second pivot through fastening screw, the second pivot is seted up and is convenient for install fastening screw's installation screw.

The invention has the beneficial effects that:

the invention has reasonable structural design, on one hand, the double-shaft motor is utilized to drive the three rotary working tables simultaneously, the efficiency is high, and meanwhile, the gear transmission mechanism is arranged at the outer side of the supporting box, so that the maintenance is convenient; on the other hand, the rotating shaft of the double-shaft motor is utilized to drive the fan blades to rotate, and wind power generated by the rotation of the fan blades can enable air to enter the supporting box and then be discharged through the protective cover, so that the cooling and heat dissipation functions are achieved.

Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic bottom view of the support ring of the present invention;

FIG. 3 is a schematic top view of the shield of the present invention;

FIG. 4 is a schematic view of the structure of the mounting ring and the fan blade of the present invention;

in the drawings, the parts are numbered as follows:

1-support box, 2-double-shaft motor, 3-first rotating shaft, 4-first rotating table, 5-second rotating table, 6-third rotating table, 7-driving bevel gear, 8-driven shaft, 9-driven bevel gear, 10-air inlet hole, 11-partition plate, 12-first air guide hole, 13-second rotating shaft, 14-support ring, 15-protective cover, 16-positioning block, 17-air outlet hole, 18-mounting ring, 19-fan blade and 20-second air guide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment is a rotary table of a numerically controlled milling machine, which includes a supporting box 1, a dual-shaft motor 2 is disposed inside the supporting box 1, and a first rotating shaft 3 and a second rotating shaft 13 are respectively disposed at two ends of the dual-shaft motor 2. The upper portion of supporting box 1 is equipped with trapezoidal holding surface, and first swivel work head 4 has been placed to the holding surface in trapezoidal holding surface middle part, and the holding surface of both sides is equipped with second swivel work head 5 and third swivel work head 6 respectively. The included angle between the two side supporting surfaces of the trapezoid supporting surface and the middle supporting surface is the same, and the included angle is 120 degrees and 145 degrees. The first rotating shaft 3 penetrates through the supporting box 1 and is fixed with the first rotary workbench 4, the second rotating shaft 13 penetrates through the supporting box 1, and a driving bevel gear 7 is fixed on a shaft body positioned outside the supporting box 1. The second rotary worktable 5 and the third rotary worktable 6 are respectively connected with a driven shaft 8 penetrating through the supporting box 1, a driven bevel gear 9 is fixed at the end part of the driven shaft 8 positioned at the outer side of the supporting box 1, and the driven bevel gear 9 is meshed with the driving bevel gear 7. An air inlet 10 is formed in the bottom plate of the support box 1, a partition plate 11 is arranged between the double-shaft motor 2 and the driven shaft 8 inside the support box 1, and a first air guide hole 12 is formed in the position, close to the first rotary workbench 4, of the partition plate 11. A support ring 14 is fixed on the lower side of the bottom plate of the support box 1, a truncated cone-shaped groove with a narrow top and a wide bottom is formed in the support ring 14, and a plate body of the bottom plate of the support box 1, which is positioned in the truncated cone-shaped groove, is provided with a through hole matched with the second rotating shaft 13 and a plurality of second air guide holes 20 surrounding the periphery of the through hole. The inner wall of the support ring 14, which is positioned in the truncated cone-shaped groove, is symmetrically provided with guide holes matched with the driven shaft 8, and the outer side of the support ring 14 is in threaded connection with a protective cover 15. The protective cover 15 is composed of a cylindrical pipe and an end plate, a positioning block 16 with a positioning groove is fixed on the inner side of the end plate, and the end plate is uniformly provided with exhaust holes 17 around the positioning block. The second rotating shaft 13 is also fixed with a mounting ring 18 at the outer side of the driving bevel gear 9, and a plurality of fan blades 19 are uniformly fixed on the periphery of the mounting ring 18.

In the present embodiment, the axis of the first rotary table 4 and the axis of the first rotary shaft 3 coincide with each other; the axes of the second and third rotary tables 5 and 6 and the axis of the corresponding driven shaft 8 coincide with each other.

In this embodiment, the air inlet hole 10 and the air outlet hole 17 are provided with dust-proof filter screens. The air inlet holes 10 are all located at the periphery of the support ring 14. The outer side of the support ring 14 is provided with external threads, and the inner side of the cylindrical pipe of the protective cover 15 is provided with internal threads matched with the external threads. The mounting ring 18 is fixed to the second rotating shaft 13 by a fastening screw, and the second rotating shaft 13 is provided with a mounting screw hole for mounting the fastening screw.

One specific application of this embodiment is: the structure of the embodiment is reasonable in design, on one hand, the double-shaft motor 2 is utilized to drive the three rotary working tables simultaneously, the efficiency is high, and meanwhile, the gear transmission mechanism is arranged on the outer side of the supporting box, so that the maintenance is convenient; on the other hand, the rotating shaft of the double-shaft motor 2 is used for driving the fan blades 19 to rotate, wind power generated by the rotation of the fan blades can enable air to enter the supporting box, and then the air 1 is discharged through the protective cover 15, so that the cooling and heat dissipation functions are achieved.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a numerically controlled fraise machine swivel work head, includes supporting box, its characterized in that: the support box is internally provided with a double-shaft motor, the two ends of the double-shaft motor are respectively provided with a first rotating shaft and a second rotating shaft, the upper part of the support box is provided with a trapezoidal support surface, a first rotating workbench is placed on the support surface in the middle of the trapezoidal support surface, the support surfaces on the two sides are respectively provided with a second rotating workbench and a third rotating workbench, the first rotating shaft penetrates through the support box and is fixed with the first rotating workbench, the second rotating shaft penetrates through the support box, a driving bevel gear is fixed on a shaft body outside the support box, the second rotating workbench and the third rotating workbench are respectively connected with driven shafts penetrating through the support box, the end parts of the driven shafts outside the support box are fixed with driven bevel gears which are mutually meshed with the driving bevel gears, the axis of the first rotating workbench and the axis of the first rotating shaft are mutually coincident, and the second rotating workbench and the third rotating workbench are respectively connected with driven shafts penetrating through the support box, The respective axis of the third rotary worktable is superposed with the axis of the corresponding driven shaft; the bottom plate of the supporting box is provided with an air inlet, a clapboard is arranged in the supporting box and positioned between the double-shaft motor and the driven shaft, a first air guide hole is formed at the position, close to the first rotary worktable, of the clapboard, a supporting ring is fixed at the lower side of the bottom plate of the supporting box, a round platform-shaped groove with a narrow top and a wide bottom is formed in the supporting ring, a perforated hole matched with a second rotating shaft and a plurality of second air guide holes surrounding the perforated hole are formed in the plate body of the bottom plate of the supporting box, which is positioned in the round platform-shaped groove, guide holes matched with the driven shaft are symmetrically formed in the inner wall of the supporting ring, a protective cover is screwed on the outer side of the supporting ring and consists of a cylindrical pipe and an end plate, a positioning block with a positioning groove is fixed on the inner side of the end plate, exhaust holes are uniformly formed on, the periphery of collar is evenly fixed with a plurality of flabellums, the collar is fixed through fastening screw and second pivot, the second pivot is seted up the installation screw of being convenient for install fastening screw.

2. A numerically controlled fraise machine rotating table according to claim 1, characterized in that: and dustproof filter screens are arranged at the air inlet and the air outlet.

3. A numerically controlled fraise machine rotating table according to claim 1, characterized in that: the air inlet holes are all positioned on the periphery of the support ring.

4. A numerically controlled fraise machine rotating table according to claim 1, characterized in that: the outside of support ring is equipped with the external screw thread, the cylindrical pipe inboard of protection casing is equipped with the internal thread with external screw thread complex.