A kind of guider of multi-spindle drilling lathe
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of guider, particularly a kind of guider of multi-spindle drilling lathe.
Background technology
Multi-shaft device is a kind of device that can process two above unthreaded holes or screwed hole simultaneously, and it comprises the main shaft of a plurality of interlocks, and the cutter of boring or tapping can be installed on the main shaft.The multi-spindle drilling lathe is fixed on multi-shaft device on the frame, can realize the processing in a plurality of holes, and is easy to process.Multi-shaft device drives many group tool feeding simultaneously, therefore feed precision is had relatively high expectations.
In the prior art, generally be employed in the feed accuracy that guide rod improves multi-shaft device is set between multi-shaft device and the frame.For example, Chinese patent [patent No. ZL200720311697.X; Granted publication CN201108976Y] matching structure of a kind of three pillar type multi-shaft device and frock disclosed; It comprises multi-spindle drilling device, frock; Frock is isosceles or equilateral triangle and triangle and is provided with long guide pillar; The post borehole jack of guide hole plate triangle is on the long guide pillar of frock triangle; The guide rod hole that one end of three guide rods is connected with the guide hole plate, the other end passes multi-spindle drilling device shell triangle, spring housing are positioned on the post hole of multi-spindle drilling device triangle and guide pillar that guide rod hole is enclosed within the frock triangle respectively and the guide rod and along guide pillar and guide rod and move up and down synchronously on the guide rod between guide hole plate and multi-spindle drilling device shell.
The above-mentioned three pillar type multi-shaft device and the matching structure of frock can lead to the feed motion of multi-shaft device main shaft; The problem that it exists is; It is bigger to the reaction force that guide rod produces that multi-shaft device adds man-hour; The spring that is provided with on the guide rod can play certain cushioning effect, but after using for a long time, the loosening situation in guide rod junction still might occur, influences guiding accuracy.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of guider of multi-spindle drilling lathe, and the technical problem of this device solves is to improve the guiding accuracy of guide rod to multi-shaft device.
The purpose of the utility model can realize through following technical proposal: a kind of guider of multi-spindle drilling lathe, and the multi-spindle drilling lathe comprises multi-shaft device and frame, it is characterized in that; This guider comprises two guide rods that are connected on the frame; Be fixed with on the described multi-shaft device and the corresponding guide pin bushing in guide rod position, described guide rod can pass above-mentioned guide pin bushing, is arranged with spring on the described guide rod; One end of spring is resisted against on the frame, and the other end is resisted against on the guide pin bushing.
The guider of this multi-spindle drilling lathe plays guide effect when the multi-shaft device feeding.Add man-hour, multi-shaft device moves downward along guide rod, and spring is compressed; When the cutter on being connected the multi-shaft device main shaft touched surface of the work, spring can absorb the reaction force of the cutting force that produces in the processing; In process, multi-shaft device continues to move downward along guide rod; When multi-shaft device moved downward extreme position, spring was compressed to the shortest, played the effect of protection workpiece and process equipment; After machining, multi-shaft device moves upward and gets back to initial position, and spring applies power upwards to multi-shaft device.This device can guarantee the stability in the multi-shaft device process, and the parameter of spring can be selected according to the processing needs.
In the guider of above-mentioned multi-spindle drilling lathe, offer resigning hole on the described multi-shaft device, described guide pin bushing has the threaded portion, and resigning hole can be passed in described threaded portion, and the threaded portion is provided with locking nut.Guide pin bushing easy for installation connects reliable; Replacing after guide pin bushing weares and teares is convenient.
In the guider of above-mentioned multi-spindle drilling lathe, the quantity of described locking nut is two, and the end face of two locking nuts each other against.Interlocking through two locking nuts can prevent that guide pin bushing from producing loosening and then influence guide effect under the effect of mechanical oscillation, the connection of guide pin bushing is reliable.
In the guider of above-mentioned multi-spindle drilling lathe, be provided with positioning seat between described guide rod and the frame, described positioning seat is connected through bolt and frame, and the bottom of described spring is resisted against on the positioning seat.Guide rod is fixed on the frame through positioning seat.
In the guider of above-mentioned multi-spindle drilling lathe, the employing copper of described guide pin bushing becomes.The wearability of copper is better, and is easy to process.
Compared with prior art, the advantage of the guider of this multi-spindle drilling lathe is:
1, the guider of this multi-spindle drilling lathe can play the guiding role to the feed motion of multi-shaft device through the cooperation of guide rod and guide pin bushing;
2, the guide rod of the guider of this multi-spindle drilling lathe is provided with spring, can play cushioning effect to multi-shaft device.
3, the guide pin bushing of the guider of this multi-spindle drilling lathe is connected on the multi-shaft device through two locking nuts that abut against together, and the interlocking through locking nut makes the fixing more reliable of guide pin bushing.
Description of drawings
Fig. 1 is the main TV structure sketch map of the guider of this multi-spindle drilling lathe.
Fig. 2 is the left TV structure sketch map of the guider of this multi-spindle drilling lathe.
Among the figure, 1, multi-shaft device; 2, frame; 3, guide rod; 4, guide pin bushing; 5, spring; 6, locking nut; 7, positioning seat.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
The multi-spindle drilling lathe comprises multi-shaft device 1 and frame 2, and the guider of this multi-spindle drilling lathe is arranged on the multi-spindle drilling lathe, is used for the feeding of multi-shaft device 1 is played guiding and buffering effect.This device comprises guide rod 3, guide pin bushing 4 and spring 5.
Specifically, as shown in Figure 1, offer resigning hole on the multi-shaft device 1, guide pin bushing 4 is fixed in the resigning hole.Guide rod 3 is fixed on the frame 2, and can pass guide pin bushing 4.Be provided with positioning seat 7 between guide rod 3 and the frame 2, positioning seat 7 is connected through screw and frame 2.Spring 5 is set on the guide rod 3, and an end of spring 5 is resisted against on the positioning seat 7, and the other end is resisted against on the guide pin bushing 4.In the production and manufacture process of reality, the parameter of spring can be selected according to the processing needs of reality.
In the present embodiment, as depicted in figs. 1 and 2, guide pin bushing 4 has the threaded portion, and resigning hole can be passed in the threaded portion, and the place, threaded portion is rotary with two locking nuts 6.During installation, guide pin bushing 4 is packed in the resigning hole, the locking nut 6 of screwing, the end face that makes two locking nuts 6 each other against; In the process, the interlocking of two locking nuts 6 can prevent that guide pin bushing 4 from producing loosening and then influence guide effect under the effect of mechanical oscillation, and the connection of guide pin bushing 4 is more reliable.Guide pin bushing 4 adopts copper product to process, and the wearability of copper is better, and is easy to process.Simultaneously, because guide pin bushing 4 adopts demountable structure to be connected on the frame 2, the replacing after guide pin bushing 4 weares and teares is convenient.
The operation principle of the guider of this multi-spindle drilling lathe: add man-hour, multi-shaft device 1 moves downward along guide rod 3, and spring 5 is compressed; When the cutter on being connected the multiaxis main shaft touched surface of the work, spring 5 can absorb the reaction force of the cutting force that produces in the processing; In process, multi-shaft device 1 continues to move downward along guide rod 3; When multi-shaft device 1 moved downward extreme position, spring 5 was compressed to the shortest, played the effect of protection workpiece and process equipment; After machining, multi-shaft device 1 moves upward and gets back to initial position, and 5 pairs of multi-shaft devices 1 of spring apply power upwards.This device can guarantee the stability in multi-shaft device 1 process.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as multi-shaft device 1, frame 2, guide rod 3, guide pin bushing 4, spring 5, locking nut 6, positioning seat 7 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.