CN216758185U

CN216758185U - End face driven shaft machining center clamp

Info

Publication number: CN216758185U
Application number: CN202220091471.8U
Authority: CN
Inventors: 刘安文; 高健; 万元彬
Original assignee: Shandong Hongming Intelligent Technology Co ltd
Current assignee: Shandong Hongming Intelligent Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-17
Anticipated expiration: 2032-01-14

Abstract

An end face driven shaft machining center clamp comprises a base, a tailstock and a workbench, wherein the tailstock and the workbench are oppositely arranged on the base, a pressing center is arranged on the tailstock, an end driving mechanism is arranged on the workbench, and the pressing center is coaxial with a power output end in the end driving mechanism; the end driving mechanism comprises an oil cylinder, an end driving seat, a telescopic connecting rod and a tool rule seat, the oil cylinder and the end driving seat are fixedly installed on the workbench, the telescopic connecting rod is installed inside the end driving seat, the telescopic connecting rod is connected with a piston rod of the oil cylinder, an end cover is installed on the end driving seat, a cavity is formed between the end driving seat and the end cover, the tool rule seat is installed in the cavity, a tool rule is installed on the tool rule seat, and a positioning tip is installed on the end cover. The utility model has simple and reasonable structure and novel design, realizes the quick positioning and pressing of shaft parts, improves the part processing precision and improves the production efficiency.

Description

End face driven shaft machining center clamp

Technical Field

The utility model relates to a horizontal machining clamp for machining shaft parts, and belongs to the technical field of shaft machining clamps

Background

The shaft part is a common part for metal machining, a common tool is a three-jaw self-centering chuck and a three-jaw self-centering tip in the shaft machining process, the three-jaw self-centering chuck jaws clamp one end of the shaft part, the tip is pressed against the other end of the shaft part to machine the middle part, and then the first end is cut off or machined again by the other end of the clamping.

However, in the above prior art, there are several problems:

1. the clamping precision of the three-jaw chuck is not as good as that of a two-head tip;

2. the clamping part of the clamping jaw needs to be secondarily clamped and reprocessed, and concentricity deviation exists in the secondary processing of the clamping part or the material waste caused by cutting off the clamping part is caused;

3. the two working procedures have the problems of long processing and clamping time and low production efficiency.

Disclosure of Invention

Aiming at the defects of the existing shaft machining technology, the utility model provides the end face-driven shaft machining center clamp which is convenient and quick to operate, and is suitable for universal machining of shaft parts.

The utility model discloses an end face driven shaft machining center clamp, which adopts the following technical scheme:

the clamp comprises a base, a tailstock and a workbench, wherein the tailstock and the workbench are oppositely arranged on the base, a pressing center is arranged on the tailstock, an end driving mechanism is arranged on the workbench, and the pressing center is coaxial with a power output end in the end driving mechanism;

the end driving mechanism comprises an oil cylinder, an end driving seat, a telescopic connecting rod and a tool rule seat, the oil cylinder and the end driving seat are fixedly installed on the workbench, the telescopic connecting rod is installed inside the end driving seat, the telescopic connecting rod is connected with a piston rod of the oil cylinder, an end cover is installed on the end driving seat, a cavity is formed between the end driving seat and the end cover, the tool rule seat is installed in the cavity, a tool rule is installed on the tool rule seat, and a positioning tip is installed on the end cover.

The table may be a four-axis turntable.

The telescopic connecting rod is in spherical contact with the cutting rule base, so that the cutting rule base can be self-adaptively adjusted to be uniformly stressed by the spherical surface when being pressed by the cutting rule.

The telescopic connecting rod is connected with a piston rod of the oil cylinder through threads to realize telescopic action, and the pressure of the oil cylinder is adjustable so as to adopt proper jacking force.

And a spring is arranged between the knife ruler seat and the end cover and is used for retracting and resetting the knife ruler after the knife ruler is extended out.

The front end of the driving cutting rule is a 45-degree inclined plane.

The tailstock is a hydraulic tailstock, and the oil supply pressure of the hydraulic tailstock is greater than that of the push-out oil cylinder.

The center holes at two ends of the shaft-type workpiece are aligned with the positioning center and the pressing center, the center hole at one end of the workpiece is tightly pressed through the pressing center, then the cutting rule and the positioning center are pushed to move axially by the oil cylinder in the end driving mechanism, so that the center hole at the other end of the workpiece is tightly pressed by the positioning center, and the cutting rule is embedded into the end surface of the workpiece to be processed, so that the workpiece is fixed.

The shaft part clamping device is simple and reasonable in structure and novel in design, rapid positioning and pressing of shaft parts are achieved, the part machining precision is improved, the defects that a chuck centering error exists and clamping points cannot be machined are overcome, the center positioning and clamping mechanism is separated, the assembling and disassembling time in the clamping process is saved, meanwhile, a machining process is saved, the production efficiency is improved, the shaft product machining requirements are met, the universality is high, and meanwhile, the automation requirements of modern enterprises are met.

Drawings

Fig. 1 is a schematic view of the general structure of the end-face-driven shaft machining center fixture of the present invention.

Fig. 2 is a schematic structural view of the end drive mechanism of the present invention.

In the figure: 1. the tail seat, 2, the compression center, 3, the end driving mechanism, 4, the workbench and 5, the base;

301. the device comprises a push-out oil cylinder, 302, a mounting flange, 303, an end driving seat, 304, an end cover, 305, a knife rule, 306, a positioning tip, 307, a spring, 308, a knife rule seat and 309, a telescopic connecting rod.

Detailed Description

Referring to fig. 1, the end face driven shaft machining center fixture comprises a base 5, a tailstock 1 and a workbench 4, wherein the tailstock 1 and the workbench 4 are oppositely arranged on the base 5, a pressing center 2 is arranged on the tailstock 1, an end driving mechanism 3 is arranged on the workbench 4, and the pressing center 2 is coaxial with a positioning center 306 (power output end) in the end driving mechanism 3. The tailstock 1 adopts a hydraulic tailstock, and the workbench 4 is a machine tool workbench or a four-axis rotary table, which are all in the prior art. The pressing tip 2 is connected with the tailstock 1 through a conventional standard taper.

The end drive mechanism 3 is configured as shown in fig. 2, and includes a push-out cylinder 301, an end drive base 303, a telescopic link 309, a cutting rule base 308, and a positioning tip 306. The push-out oil cylinder 301 is mounted at the rear of the workbench 4 (see fig. 1), the end drive base 303 is provided with a mounting flange 302, and the end drive base 303 (or the whole end drive mechanism 3) is mounted on the workbench 4 through the mounting flange 302. The telescopic connecting rod 309 is installed in the inner hole of the end drive seat 303 and is connected with the piston rod of the push-out oil cylinder 301 through threads. An end cover 304 is installed at the front end of the end drive seat 303, a cavity is arranged between the end cover 304 and the end drive seat 303, a cutting rule seat 308 is installed in the cavity, the cutting rule seat 308 is in contact with the front end of the telescopic connecting rod 309 in a spherical form, a driving cutting rule 305 is installed on the cutting rule seat 308, and the driving cutting rule 305 extends out of the end cover 304. The front end of the driving rule 305 is a 45 degree bevel. The end cover 304 is provided with a positioning centre 306, and the positioning centre 306 and the pressing centre 2 are coaxially arranged. A spring 307 is provided between the end cap 304 and the blade holder 308 to return the blade holder 308. Two ends of a shaft workpiece are aligned with a pressing center 2 and a positioning center 306, the pressing center 2 is driven by a tailstock 1 to prop against the shaft workpiece, a piston rod of a push-out oil cylinder 301 pushes a telescopic connecting rod 309 to extend out, a cutting rule seat 308 moves along with the telescopic connecting rod to drive a cutting rule 305 to extend out, the left end face of the shaft workpiece is pressed (see figure 1), positioning and pressing of the workpiece are completed, and the workpiece is machined. After the machining is finished, the piston rod of the push-out oil cylinder 301 retracts, the telescopic connecting rod 309 retracts, the cutting rule 305 retracts under the action of the spring 307, the tailstock 1 drives the pressing tip 2 to retract, and the machined workpiece is taken out.

The positioning center 306 is connected with the end cover through the conventional standard taper, and the exhaust hole is formed in the rear portion of the installation taper hole in the end cover, so that the positioning center is convenient to detach.

The tailstock 1 adopts a hydraulic tailstock, and the oil supply pressure of the hydraulic tailstock and the oil supply pressure of the push-out oil cylinder 301 are adjusted through an adjusting valve and a pressure reducing valve, so that the oil supply pressure of the push-out oil cylinder 301 is smaller than that of the tailstock 1.

The process of clamping and positioning the shaft workpiece by the clamp is as follows:

two ends of a shaft workpiece with central holes at two ends are respectively aligned with a pressing tip 2 and a positioning tip 306, the pressing tip 2 is driven by a tailstock 1 to prop against the shaft workpiece, and then a push-out oil cylinder 301 pushes a telescopic connecting rod 309 to extend out, so that a driving cutting rule 305 is pressed into the left end face of the workpiece to process the workpiece.

The push-out oil cylinder 301 drives the telescopic connecting rod 309 to retract, the cutting rule 305 retracts under the action of the spring 307, and the tailstock 1 drives the pressing tip 2 to retract, so that the workpiece can be taken out.

Claims

1. The utility model provides an end face driven axle type processing top anchor clamps which characterized by: the tailstock and the workbench are oppositely arranged on the base, a pressing center is arranged on the tailstock, an end driving mechanism is arranged on the workbench, and the pressing center is coaxial with a power output end in the end driving mechanism;

2. The end face driven shaft machining tip clamp of claim 1, wherein: the workbench is a four-axis turntable.

3. The end face driven shaft machining tip clamp of claim 1, wherein: the telescopic connecting rod is in spherical contact with the cutting rule seat.

4. The end face driven shaft machining tip clamp of claim 1, wherein: the telescopic connecting rod is connected with a piston rod of the oil cylinder through threads.

5. The end face driven shaft machining tip clamp of claim 1, wherein: and a spring is arranged between the knife rule seat and the end cover.

6. The end face driven shaft machining center clamp of claim 1, wherein: the front end of the cutting rule is a 45-degree inclined plane.

7. The end face driven shaft machining tip clamp of claim 1, wherein: the tailstock is a hydraulic tailstock, and the oil supply pressure of the hydraulic tailstock is greater than that of the push-out oil cylinder.