CN214769474U

CN214769474U - Novel vibration tapping machine

Info

Publication number: CN214769474U
Application number: CN202120879067.2U
Authority: CN
Inventors: 张琪; 姜侨
Original assignee: Wuxi Titan Metal Products Co ltd
Current assignee: Wuxi Titan Metal Products Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-19
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a novel vibration tapping machine relates to tapping machine technical field. Wherein, this novel vibration tapping machine includes: the main shaft and the crank rocker mechanism are connected with the main shaft; the first driving device is connected with the crank and rocker mechanism; when the first driving device acts, the crank rocker mechanism is driven to swing to drive the main shaft to swing. The utility model discloses, when the vibration exciter of solving vibration chasing bar adopted step motor to vibrate the tapping, because of the amplitude is too big, lead to inefficiency, still need use multiple profiling to assist simultaneously, and then lead to using loaded down with trivial details problem.

Description

Novel vibration tapping machine

Technical Field

The utility model belongs to the technical field of the tapping machine technique and specifically relates to a novel vibration tapping machine.

Background

The vibration tapping is used as a new processing technology, and plays a better role in processing internal threads of deep holes and difficult-to-process materials. Along with the improvement of the technological level, new materials are applied more and more, small holes and deep holes in equipment are increased, and the tapping problems of the deep holes, the small holes and materials difficult to process are increased.

When the vibration exciter of the conventional vibration tapping device adopts a stepping motor to perform vibration tapping, the amplitude is more than 40 degrees, and the vibration exciter is used for breaking chips by using a rear blade actually. The problem of chip breaking is solved, and the problem of low efficiency is caused, because the stepping motor always works in a starting-stopping-reverse transitional working state, the frequency is difficult to increase. When a tapping machine is used for tapping, a profile modeling is generally arranged in order to ensure the processing quality of threads. Since the pitch of the master is consistent with that of the workpiece, the master must be replaced according to the pitch of the workpiece, which is troublesome to use. Most vibration tapping machines do not have the profiling, with work piece screw thread self-steering, be unfavorable for improving the quality of processing screw thread.

When vibration exciter to vibration chasing bar among the correlation technique adopted step motor to vibrate the tapping, because of the amplitude is too big, lead to inefficiency, still need use multiple profiling to assist simultaneously, and then lead to using loaded down with trivial details problem, do not propose effectual solution at present.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: a novel vibration tapping machine is provided to solve the above problems existing in the prior art.

The technical scheme is as follows: a novel vibration threading machine comprising:

the main shaft and the crank rocker mechanism are connected with the main shaft; the first driving device is connected with the crank and rocker mechanism; when the first driving device acts, the crank rocker mechanism is driven to swing to drive the main shaft to swing.

Preferably, one side of the main shaft is provided with a spline matched with the spline sleeve, and the other side of the main shaft is provided with a screw matched with the screw pair.

Preferably, the crank and rocker mechanism comprises: the eccentric shaft is connected with the eccentric gear shaft, a plunger sleeve is arranged on one side of the eccentric shaft, a plunger is arranged on one side of the plunger sleeve, and a spline sleeve is arranged on the outer side of the plunger.

Preferably, a first bearing is provided between the eccentric shaft and the plunger sleeve.

Preferably, a vibrator support is disposed outside the eccentric gear shaft.

Preferably, a second bearing is provided between the vibrator bracket and the eccentric gear shaft.

Preferably, a spacer is disposed between the second bearings and adjacent to the vibrator support.

Preferably, a fastening nut is arranged on one side, away from the plunger sleeve, of the eccentric shaft.

Preferably, the method further comprises the following steps: a second drive coupled to the screw pair via a second gear pair.

Preferably, the method further comprises the following steps: a third drive coupled to the vibrator support through a third gear drive pair.

Has the advantages that: in this application embodiment, adopt the mode of two eccentric mechanisms adjustment amplitude, through working as during first drive arrangement action, through the drive crank rocker mechanism swing drives the main shaft swing has reached the purpose of adjustment amplitude to realized improving the tapping moment of torsion, having the technical effect of circumference vibration and axial vibration, and then when vibration exciter that has solved vibration chasing bar adopted step motor to vibrate the tapping, because of the amplitude is too big, lead to inefficiency, still need use multiple profiling to assist simultaneously, and then lead to using loaded down with trivial details technical problem.

Drawings

FIG. 1 is a schematic structural view of a crank and rocker mechanism of the present invention;

fig. 2 is a working principle diagram of the present invention.

The reference signs are: 1. a main shaft; 2. a crank and rocker mechanism; 3. a first driving device; 4. a spline housing; 5. a spline; 6. a screw pair; 7. a screw; 8. an eccentric shaft; 9. an eccentric gear shaft; 10. a plunger sleeve; 11. a plunger; 12. a first bearing; 13. a vibrator support; 14. a second bearing; 15. a spacer sleeve; 16. fastening a nut; 17. a gasket; 18. a second driving device; 19. a second gear transmission pair; 20. a third driving device; 21. a third gear transmission pair; 22. a first gear transmission pair; 23. and the fourth gear transmission pair.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

As shown in fig. 1, the present application relates to a novel vibration threading machine. This novel vibration tapping machine includes: the device comprises a main shaft 1 and a crank rocker mechanism 2, wherein the crank rocker mechanism is connected with the main shaft 1; the first driving device 3 is connected with the crank rocker mechanism 2; when the first driving device 3 acts, the main shaft 1 is driven to swing by driving the crank rocker mechanism 2 to swing.

The main shaft 1 is a main transmission shaft of the vibration tapping machine, and can realize the effect of power transmission, so that a good tapping effect is ensured. And the crank rocker mechanism 2 is connected with the main shaft 1. The crank-rocker mechanism 2 refers to a hinged four-bar mechanism having one crank and one rocker. Usually, the crank is a driving member and rotates at a constant speed, while the rocker is a driven member and swings back and forth at variable speed, and the connecting rod performs a planar compound motion. The crank rocker mechanism 2 also has a rocker as an active member, and the reciprocating swing of the rocker is converted into the rotation of a crank. By being connected to the main shaft 1, the effect of power transmission can be achieved.

The first driving device 3 is connected with the crank rocker mechanism 2; the first driving device 3 is a vibration driving motor and can realize a good vibration effect so as to drive other parts to act; when the first driving device 3 acts, the main shaft 1 is driven to swing by driving the crank rocker mechanism 2 to swing. The vibration driving motor makes the eccentric shaft 8 rotate, the third driving device 20 makes the eccentric shaft 8 revolve, the mechanism is a mechanism combining a planetary gear train mechanism and a crank rocker mechanism, and the synthesis of the rotation and the vibration of the main shaft 1 is realized.

From the above description, it can be seen that the following technical effects are achieved by the present application:

in this application embodiment, adopt the mode of two eccentric mechanisms adjustment amplitude, through working as during 3 actions of first drive arrangement, through the drive 2 swings drives of crank rocker mechanism main shaft 1 swings, has reached the purpose of adjustment amplitude to realized improving the tapping moment of torsion, having the technical effect of circumference vibration and axial vibration, and then when vibration exciter that has solved vibration chasing bar adopts step motor to vibrate the tapping, because of the amplitude is too big, lead to inefficiency, still need use multiple profiling to assist simultaneously, and then lead to using loaded down with trivial details.

Optionally, a spline 5 matched with the spline housing 4 is arranged on one side of the main shaft 1, and a screw 7 matched with the screw pair 6 is arranged on the other side of the main shaft. Good matching effect can be realized, and stable power transmission effect can be realized.

As shown in fig. 2, the crank and rocker mechanism 2 includes: the eccentric shaft 8 is connected with the eccentric gear shaft 9, a plunger sleeve 10 is arranged on one side of the eccentric shaft 8, a plunger 11 is arranged on one side of the plunger sleeve 10, and a spline sleeve 4 is arranged on the outer side of the plunger 11. When the vibration driving motor drives the gear on the outer eccentric sleeve to rotate through the first gear transmission pair 22 and the fourth gear transmission pair 23, the outer eccentric sleeve and the inner eccentric shaft 8 rotate together. The eccentric shaft 8 drives the plunger sleeve 10 to make the plunger 11 swing. The plunger 11 is fixedly connected with the spline housing 4 and transmits the swinging motion to the main shaft 1. The eccentric shaft 8 is composed of an outer eccentric sleeve and an inner eccentric shaft 8 double-eccentric mechanism. Further, a first bearing 12 is disposed between the eccentric shaft 8 and the plunger sleeve 10. The effect of reducing friction can be realized, and then transmission efficiency is improved. Further, a vibrator bracket 13 is arranged outside the eccentric gear shaft 9. Good vibration and support effects can be achieved. Further, a second bearing 14 is provided between the vibrator bracket 13 and the eccentric gear shaft 9. The effect of reducing friction can be realized, and then transmission efficiency is improved.

Further, a spacer 15 is disposed between the second bearings 14 and on a side close to the vibrator holder 13. The spacing effect can be achieved so that interference and collision occur.

In order to increase the stability of the eccentric, the eccentric shaft 8 is provided with a fastening nut 16 on the side facing away from the plunger sleeve 10. By providing the fastening nut 16, a good fastening effect can be achieved. Preferably, a washer 17 is provided between the fastening nut 16 and the eccentric gear shaft 9. The locking effect can be further improved, and the locking effect is realized.

Further, the method also comprises the following steps: a second drive 18, the second drive 18 being coupled to the screw pair 6 via a second gear wheel set 19. The second driving device 18 is a spindle 1 and a threaded sleeve driving stepping motor. The effect of the spline side of the drive spindle 1 can be achieved. The second driving device 18 is coupled with the screw pair 6 through a second gear transmission pair 19, so that a good power transmission effect can be realized. Further, the method also comprises the following steps: a third drive means 20, said third drive means 20 being coupled to said vibrator holder 13 by a third gear transmission pair 21. The third driving device 20 is used for driving the stepping motor by the screw 7 of the spindle 1. The screw 7 side motion of the driving main shaft 1 can be realized. Through the connection of each part, the effect of power transmission can be realized. The required workpiece pitch can be synthesized by driving the stepping motor through the screw sleeve of the main shaft 1 and driving the stepping motor through the screw rod 7 of the main shaft 1 to respectively drive the screw rod 7 and the spline 5 to rotate at different speeds, and the equipment realizes the function of a universal profiling.

The working principle of the utility model is as follows:

A. the transmission route of the main shaft 1 vibration is as follows: the vibration driving motor drives the eccentric shaft 8 to rotate through the first transmission gear pair and the second transmission gear pair, and the eccentric shaft 8 drives the crank rocker mechanism 2 to swing. The plunger 11 of the crank rocker mechanism 2 is fixedly connected with the spline housing 4, and the spline housing 4 swings for 1 time when the eccentric shaft 8 rotates for 1 circle. The spline housing 4 drives the main shaft 1 to swing. The amplitude is adjusted by adopting a double eccentric mechanism.

B. The transmission route of the main shaft 1 rotation is as follows: the main shaft 1 is provided with a screw 7 driving a stepping motor through a second gear transmission pair 19 to drive a vibrator bracket 13 to rotate, an eccentric shaft 8 is arranged on the vibrator bracket 13, when the vibrator bracket 13 rotates, the eccentric shaft 8 rotates around the center of the main shaft 1, and the eccentric shaft 8 drives a crank rocker mechanism 2 and a spline housing 4 to enable the main shaft 1 to generate rotary motion.

C. The key to realize the universal profiling is the control of the feeding speed of the main shaft 1. The feeding of the main shaft 1 is controlled by a stepping motor driven by a threaded sleeve of the main shaft 1 and a stepping motor driven by a screw 7 of the main shaft 1. When the two stepping motors respectively drive the screw 7 and the nut to rotate, the control system controls the main shaft 1 and the nut to work at different steering directions and different speeds, and the specifications of fast forward, fast backward and fast forward actions can be obtained.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. A novel vibration tapping machine, characterized by comprising: the main shaft and the crank rocker mechanism are connected with the main shaft; the first driving device is connected with the crank and rocker mechanism; when the first driving device acts, the crank rocker mechanism is driven to swing to drive the main shaft to swing.

2. The novel vibration tapping machine according to claim 1, wherein the main shaft is provided with splines engaged with the spline housing on one side and a screw engaged with the screw pair on the other side.

3. The novel vibration threading machine of claim 2 wherein said crank and rocker mechanism comprises: the eccentric shaft is connected with the eccentric gear shaft, a plunger sleeve is arranged on one side of the eccentric shaft, a plunger is arranged on one side of the plunger sleeve, and a spline sleeve is arranged on the outer side of the plunger.

4. The novel vibration threading machine of claim 3 wherein a first bearing is disposed between the eccentric shaft and the plunger sleeve.

5. The novel vibration tapping machine as claimed in claim 4 wherein a vibrator bracket is provided outside said eccentric gear shaft.

6. The novel vibration threading machine of claim 5 wherein a second bearing is disposed between said vibrator bracket and said eccentric gear shaft.

7. The novel vibration threading machine of claim 6 wherein a spacer sleeve is disposed between said second bearings and adjacent to a side of said vibrator support.

8. The novel vibration threading machine of claim 7 wherein a fastening nut is provided on a side of the eccentric shaft remote from the plunger barrel.

9. The novel vibration threading machine of claim 8 further comprising: a second drive coupled to the screw pair via a second gear pair.

10. The novel vibration threading machine of claim 9 further comprising: a third drive coupled to the vibrator support through a third gear drive pair.