CN110666256B

CN110666256B - Numerical control gear chamfering machine

Info

Publication number: CN110666256B
Application number: CN201910964661.9A
Authority: CN
Inventors: 林健; 张冬梅; 陈继胜; 陈波; 刘军; 陈涛
Original assignee: Chongqing Jiuyuan Machinery Co ltd
Current assignee: Chongqing Jiuyuan Machinery Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-09-15
Anticipated expiration: 2039-10-11
Also published as: CN110666256A

Abstract

The invention provides a numerical control gear chamfering machine which comprises a frame body, a workbench and a cutter mechanism, wherein the workbench is arranged on the frame body to fix a gear to be machined; the installation part is fixed on the workbench, the fixing part is connected with a transmission part located in an installation cavity formed by the installation part, the transmission part is connected with the pressing part through a driving part, so that the fixing part can fix the gear under the action of the pressing part, and the driving part partially extends out of the installation cavity, so that the gear can be taken down from the fixing part through the driving part located outside the installation cavity when the operation is performed. The range of the gears which can be fixed by the clamping mechanism included in the workbench of the numerical control gear chamfering machine is wider, so that the universality of the numerical control gear chamfering machine is stronger.

Description

Numerical control gear chamfering machine

Technical Field

The invention relates to the technical field of gear machining equipment, in particular to a numerical control gear chamfering machine.

Background

Chamfering (i.e., chamfering) of gears is a final step in gear machining, and the chamfering affects the quality of the gears. The gear chamfering mainly has the following functions: the bulge is prevented, so that the workpiece is stably installed; avoiding sharp edges and corners from scratching equipment or operators; for smoother connection between the workpieces.

The chamfer of gear is formed by numerical control gear chamfering machine tooling, along with the development of processing technique, chamfering required precision to the gear is higher and higher at present, gear chamfering machine's among the prior art structure mainly includes, the workstation that can remove in the horizontal direction of installation on the organism, the gear that treats processing can be fixed to the workstation, install the cutter mechanism who is used for processing the gear chamfer on the organism of workstation top, this cutter mechanism can move in order to be close to the gear or keep away from the gear in vertical direction.

The numerical control gear chamfering machine mainly has the defects that a workbench fixes a gear to be machined by using a hydraulic tube expander, the external diameter expansion is limited, only the gear with smaller internal diameter change range can be machined, but the gear with smaller size or overlarge size cannot be processed, so that the universality of the numerical control gear chamfering machine is poorer, in addition, the workbench needs to move in the horizontal direction, sometimes collides with a hydraulic pipe or presses the hydraulic pipe, so that the leakage is caused after the workbench is used for a long time, and the problem of overhigh maintenance frequency is caused by the fact that the hydraulic pipe is aged too fast.

Disclosure of Invention

The invention aims to solve the problem that the workbench of the current numerical control gear chamfering machine is poor in universality caused by the fact that a hydraulic tube expander is used for fixing a gear to be machined, and provides the numerical control gear chamfering machine aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a numerical control gear chamfering machine comprises a frame body, a workbench and a cutter mechanism, wherein the workbench is installed on the frame body to fix a gear to be machined, the cutter mechanism is also installed on the frame body and located above the workbench, the workbench further comprises a clamping mechanism used for installing the gear to be machined, and the clamping mechanism comprises an installation part, a driving part, a transmission part, a fixing part and a pressing part; the mounting part is fixed on the workbench, the fixing part is connected with a transmission part in a mounting cavity formed in the mounting part, the transmission part is connected with the pressing part through a driving part, so that the fixing part can fix the gear under the action of the pressing part, and the driving part partially extends out of the mounting cavity, so that the gear can be taken down from the fixing part when the driving part positioned outside the mounting cavity is operated; the fixing part comprises two crescent fixing pieces and a fixing plate fixed at the bottoms of the fixing pieces, the fixing plate is connected with a bottom plate connected with one side of the mounting part, and the outer sides of the two fixing pieces are matched with the arc shape of the inner wall of the gear; the transmission part comprises two rotating rods, the two rotating rods are hinged to the inner wall of the installation cavity and symmetrically arranged on two sides of the fixing part, one end of each rotating rod is hinged to the fixing plate of one fixing part, the other end of each rotating rod is hinged to one end of the driving part, and when the driving part is operated, the two rotating rods can rotate around the hinged point of the two rotating rods to enable one fixing plate to be close to or far away from the other fixing plate; the driving part comprises a handle and connecting columns fixed at two ends of the handle, and the connecting columns are respectively hinged with the end parts of rotating rods, so that the handle positioned outside the installation cavity can be operated to pull the rotating rods to rotate through the connecting columns; the portion that compresses tightly is including installing the spring in the spliced pole both sides respectively, and two spliced poles sides all are fixed with the mounting panel that is used for installing the spring, and the spring is located the one side that the mounting panel deviates from the fixed part to the fixed part that can be located the installation cavity through the dwang under the spring action is pulled away from the fixed part that is located the installation cavity outside.

Furthermore, each connecting column further comprises a limiting column fixed at the end part of the connecting column, the end part of the limiting column far away from the connecting column extends into a limiting hole formed in the mounting part, and the direction of the limiting hole is parallel to the moving direction of the fixing part, so that the handle can only be close to or far away from the fixing part under the action of the limiting column. Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic perspective view of a numerically controlled gear chamfering machine according to the present invention;

FIG. 2 is a cross-sectional view of a clamping mechanism on a table of the present invention;

FIG. 3 is a cross-sectional view of another operating state of the clamping mechanism of the present invention;

fig. 4 is a perspective view of a fixing portion of the clamping mechanism of the present invention.

The reference numbers in the figures are in order: the tool holder comprises a holder body 1, a workbench 2, a clamping mechanism 3, an installation part 31, a bottom plate 311, an installation cavity 312, a limiting hole 313, a driving part 32, a handle 321, a connecting column 322, a limiting column 323, a rotating rod 33, a fixing part 34, a fixing plate 341, a fixing plate 342, a hinge hole 3421, a key 343, a pressing part 35, a spring 351, an installation plate 352 and a tool mechanism 4.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:

a numerical control gear chamfering machine, as shown in figure 1, includes a frame body 1, a workbench 2 and a cutter mechanism 4, the workbench 2 is in a planar state, and is installed on the frame body 1 to fix a gear to be machined, the workbench 2 can move horizontally under the action of a driving motor, and a cutter can move close to or away from the workbench 2 under the driving, which is not repeated for the prior art. The cutter mechanism 4 is also mounted on the frame body 1 and located above the workbench 2, in order to better fix the gear, the workbench 2 further comprises a clamping mechanism 3 for mounting the gear to be machined, and the clamping mechanism 3 comprises a mounting part 31, a driving part 32, a transmission part, a fixing part 34 and a pressing part 35; the mounting portion 31 is a housing, the fixing portion 34 is used for carrying a gear to be processed, and a force is transmitted to the fixing portion 34 through the transmission portion under the action of the pressing portion 35 to fix the gear, and when a user operates the driving portion 32, the gear can be removed from the fixing portion 34. As shown in fig. 2 and 3, the installation portion 31, the driving portion 32, the transmission portion, the fixing portion 34, and the pressing portion 35 are specifically installed in a manner that the installation portion 31 is fixed on the worktable 2, the fixing portion 34 is connected to the transmission portion located in the installation cavity 312 formed in the installation portion 31, the transmission portion is connected to the pressing portion 35 through the driving portion 32, so that the fixing portion 34 can fix the gear under the action of the pressing portion 35, and a part of the driving portion 32 extends out of the installation cavity 312, so that the gear can be taken down from the fixing portion 34 when the driving portion 32 located outside the installation cavity 312 is operated. As shown in fig. 4, the fixing portion 34 includes two fixing pieces 341 in a crescent shape and a fixing plate 342 fixed to the bottom of the fixing piece 341, the fixing plate 342 is connected to the bottom plate 311 connected to the mounting portion 31, the fixing plate 342 is not fixed to the rotating rod 33 in a hinged manner, a hinge hole 3421 may be formed in a side surface of the fixing plate 342, and then an end portion of the rotating rod 33 is inserted into the hinge hole 3421, so that the fixing piece 341 is vertically fixed to the bottom plate 311. When the fixing plate 342 moves during use, the fixing plates 341 move to be close to the other fixing plate 341, the outer sides of the two fixing plates 341 are matched with the arc shape of the inner wall of the gear so as to better install the gear, and the outer side of one fixing plate 341 is provided with a key 343 clamped into the groove of the key 343 of the inner diameter of the gear so that the gear can be clamped by the clamped key 343 to be a flat key. In this embodiment, the transmission portion includes two rotation rods 33, the middle portions of the two rotation rods 33 are provided with holes hinged to the inner wall of the mounting cavity 312 and symmetrically disposed at two sides of the fixing portion 34, one end of each rotation rod 33 is hinged to a fixing plate 342 of the fixing portion 34, and the other end of each rotation rod 33 is hinged to one end of the driving portion 32, so that when the driving portion 32 is operated to rotate the two rotation rods 33 around the hinged point, one fixing plate 342 located in the mounting cavity 312 can be pulled to be close to or far away from the other fixing plate 342, so that the gear is clamped. In order to remove the gear after the machining is completed, the driving part 32 includes a handle 321 and connecting posts 322 fixed at two ends of the handle 321, and the connecting posts 322 are respectively hinged to the ends of a rotating rod 33, so that the handle 321 outside the installation cavity 312 can be pulled to overcome the resistance of a spring 351, the rotating rod 33 is pulled to rotate through the connecting posts 322, and the fixing plate 342 in the installation cavity 312 extends to another fixing plate 342. The portion 35 compresses tightly is including installing the spring 351 in spliced pole 322 both sides respectively, has seted up the spring 351 cavity with the installation cavity 312 intercommunication in the installation department 31, and spring 351 uses compression spring 351, and two spliced poles 322 sides all are fixed with the mounting panel 352 that is used for installing spring 351, and spring 351 is located the one side that mounting panel 352 deviates from fixed part 34 to make can pull away the fixed part 34 that is located the installation cavity 312 through dwang 33 under the spring 351 effect and lie in the outside fixed part 34 of installation cavity 312.

Furthermore, each connecting column 322 further comprises a limiting column 323 fixed at the end thereof, the end of the limiting column 323 away from the connecting column 322 extends into a limiting hole 313 formed in the mounting portion 31, and the direction of the limiting hole 313 is parallel to the moving direction of the fixing portion 34, so that the handle 321 can only approach or leave the fixing portion 34 under the action of the limiting column 323.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A numerical control gear chamfering machine comprises a frame body, a workbench and a cutter mechanism, wherein the workbench is arranged on the frame body to fix a gear to be machined, and the cutter mechanism is also arranged on the frame body and positioned above the workbench; the mounting part is fixed on the workbench, the fixing part is connected with a transmission part in a mounting cavity formed in the mounting part, the transmission part is connected with the pressing part through a driving part, so that the fixing part can fix the gear under the action of the pressing part, and the driving part partially extends out of the mounting cavity, so that the gear can be taken down from the fixing part when the driving part positioned outside the mounting cavity is operated; the fixing part comprises two crescent fixing pieces and a fixing plate fixed at the bottoms of the fixing pieces, the fixing plate is connected with a bottom plate connected with one side of the mounting part, and the outer sides of the two fixing pieces are matched with the arc shape of the inner wall of the gear; the transmission part comprises two rotating rods, the two rotating rods are hinged to the inner wall of the installation cavity and symmetrically arranged on two sides of the fixing part, one end of each rotating rod is hinged to the fixing plate of one fixing part, the other end of each rotating rod is hinged to one end of the driving part, and when the driving part is operated, the two rotating rods can rotate around the hinged point of the two rotating rods to enable one fixing plate to be close to or far away from the other fixing plate; the driving part comprises a handle and connecting columns fixed at two ends of the handle, and the connecting columns are respectively hinged with the end parts of rotating rods, so that the handle positioned outside the installation cavity can be operated to pull the rotating rods to rotate through the connecting columns; the portion that compresses tightly is including installing the spring in the spliced pole both sides respectively, and two spliced poles sides all are fixed with the mounting panel that is used for installing the spring, and the spring is located the one side that the mounting panel deviates from the fixed part to the fixed part that can be located the installation cavity through the dwang under the spring action is pulled away from the fixed part that is located the installation cavity outside.

2. The numerical control gear chamfering machine according to claim 1, wherein each connecting column further comprises a limiting post fixed at an end thereof, the end of the limiting post away from the connecting column extends into a limiting hole formed in the mounting portion, and the direction of the limiting hole is parallel to the moving direction of the fixing portion, so that the handle can only approach or leave the fixing portion under the action of the limiting post.