阅读说明：本技术 一种攻牙方法及伺服转盘攻牙机 (Tapping method and servo turntable tapping machine ) 是由 张海 梁云 林加亮 卢廷勇 于 2020-07-17 设计创作，主要内容包括：本发明涉及一种攻牙方法及伺服转盘攻牙机,攻牙方法包括如下步骤：根据分组规则将工件上的多个攻牙底孔分为多组；根据分组的数量,设置相同数量的攻牙工位,一个攻牙工位对应一组攻牙底孔；根据处于同组的多个攻牙底孔的分布情况,在与该组攻牙底孔对应的攻牙工位设置多个丝锥组件,多个丝锥组件与该组的多个攻牙底孔一一对应；将工件上料至治具；将治具依次送至多个攻牙工位,由攻牙工位设置的多个丝锥组件同时对与该攻牙工位对应的多个攻牙底孔进行攻牙；将攻牙完成的工件从治具上取下；间距大于两个丝锥组件可以设置的最小间距的攻牙底孔则分到同组中,并由与其对应的多个丝锥组件同时攻牙,效率高。(The invention relates to a tapping method and a servo turntable tapping machine, wherein the tapping method comprises the following steps: dividing a plurality of tapping bottom holes on the workpiece into a plurality of groups according to a grouping rule; according to the number of the groups, the tapping stations with the same number are arranged, and one tapping station corresponds to one group of tapping bottom holes; according to the distribution condition of a plurality of tapping bottom holes in the same group, a plurality of screw tap assemblies are arranged at tapping stations corresponding to the tapping bottom holes in the group, and the screw tap assemblies correspond to the tapping bottom holes in the group one by one; feeding the workpiece to the jig; sequentially conveying the jig to a plurality of tapping stations, and simultaneously tapping a plurality of tapping bottom holes corresponding to the tapping stations by a plurality of screw tap assemblies arranged at the tapping stations; taking down the workpiece after tapping from the jig; the tapping bottom holes with the distance larger than the minimum distance which can be set by the two tap assemblies are divided into the same group, and are simultaneously tapped by the corresponding tap assemblies, so that the efficiency is high.)

1. A method of tapping, comprising the steps of:

dividing a plurality of tapping bottom holes on a workpiece into a plurality of groups according to a grouping rule, wherein the grouping rule is as follows: the minimum distance between the plurality of tapping bottom holes in the same group is larger than the minimum distance which can be set by two tap assemblies;

according to the number of the groups, the tapping stations with the same number are arranged, and one tapping station corresponds to one group of tapping bottom holes;

according to the distribution condition of a plurality of tapping bottom holes in the same group, a plurality of screw tap assemblies are arranged at tapping stations corresponding to the tapping bottom holes in the group, and the screw tap assemblies correspond to the tapping bottom holes in the group one by one;

feeding the workpiece to the jig;

sequentially conveying the jig to a plurality of tapping stations, and simultaneously tapping a plurality of tapping bottom holes corresponding to the tapping stations by a plurality of screw tap assemblies arranged at the tapping stations;

and taking down the workpiece after tapping from the jig.

2. A servo rotary disc tapping machine based on the tapping method of claim 1, wherein the servo rotary disc tapping machine comprises a frame; the rack is rotatably provided with a turntable; the rack is sequentially provided with a feeding station, a plurality of tapping stations and a discharging station along the rotating direction of the turntable; the rotary table is fixedly provided with a plurality of jigs for clamping workpieces, and the plurality of jigs correspond to the feeding station, the tapping station and the discharging station one by one; a plurality of screw tap units are arranged above the rotary table and correspond to the tapping stations one by one; the tap unit comprises a plurality of tap components for tapping, and the tap components correspond to a plurality of tapping bottom holes of the workpiece to be tapped at the tapping station one by one; the machine frame is also provided with a driving assembly for driving all the tap assemblies to operate together.

3. The servo rotary disc tapping machine of claim 2, wherein the drive assembly is configured to drive the tap assembly in rotation; the tap assembly comprises a tap; a tooth rod is fixedly arranged at the tail end of the screw tap; the tail end of the tooth rod is connected with the driving assembly through a telescopic rod; the outside of the tooth bar is sleeved with a tooth bar sleeve matched with the tooth bar; the rack is provided with a fixing frame for fixing the dental rod sleeve.

4. The servo rotary disc tapping machine according to claim 3, wherein the telescopic rod comprises an inner rod and an inner rod sleeve sleeved outside the inner rod; the cross section of the inner rod is polygonal; one end of the inner rod is fixedly connected with the tail end of the tooth rod through a first universal joint, and the other end of the inner rod extends into the inner rod sleeve; one end of the inner rod sleeve, which is far away from the inner rod, is connected with the driving component.

5. The servo rotary disc tapping machine according to claim 4, wherein an end of the inner rod sleeve remote from the inner rod is connected to the driving assembly through a second universal joint.

6. The servo rotary disc tapping machine of claim 5, wherein the drive assembly comprises a multi-axis gearbox, a first motor, and a mounting bracket for mounting the multi-axis gearbox and the first motor; the multi-shaft gearbox includes an input shaft and a plurality of output shafts; the output shaft is used for being connected with the second universal joint; the input shaft is fixedly sleeved with a first driven synchronous belt wheel; a first driving synchronous belt pulley matched with the first driven synchronous belt pulley is fixedly sleeved on an output shaft of the first motor; the first driving synchronous pulley and the first driven synchronous pulley are connected through a first synchronous belt; the mounting frame is fixedly arranged on the rack.

7. The servo rotary disc tapping machine according to claim 6, wherein a second motor is fixedly provided to the mounting frame; a second driving synchronous belt pulley is fixedly sleeved on an output shaft of the second motor; the mounting rack is also provided with two longitudinal threaded rods; the two threaded rods are respectively arranged corresponding to the two ends of the fixing frame; one end of the threaded rod is rotatably connected with the mounting frame, and the other end of the threaded rod is fixedly sleeved with a second driven synchronous belt wheel; the two second driven synchronous belt wheels are connected with the second driving synchronous belt wheel through a second synchronous belt; the threaded rod is also sleeved with a threaded sleeve matched with the threaded rod; the thread sleeve is fixedly provided with a movable plate; the movable plate is fixedly provided with two connecting rods; the connecting rod is fixedly connected with the fixing frame.

8. The servo rotary disc tapping machine according to claim 2, wherein a plurality of universal balls for supporting the rotary disc are arranged below the rotary disc, and the plurality of universal balls are arranged along the circumferential direction of the rotary disc; the universal ball is fixedly arranged on the rack; the frame is also fixedly provided with a divider used for driving the turntable to rotate.

9. The servo rotary disc tapping machine according to claim 2, wherein the blanking station is provided with a blanking assembly for taking the tapped workpiece off the jig.

10. The servo rotary disc tapping machine according to claim 9, wherein the rack is further provided with a blanking waiting station and a tapping waiting station; the blanking waiting station is arranged between the blanking station and the tapping station positioned at the tail end; the tapping waiting station is arranged between the feeding station and the tapping station positioned at the head end.

Technical Field

The invention relates to the technical field of tapping, in particular to a tapping method and a servo rotary table tapping machine.

Background

The tapping is a processing mode for processing threads on the inner side surface of a tapping bottom hole, and the screw tap assembly is a commonly used assembly for tapping and at least comprises a screw tap.

In actual processing, often can meet and have a plurality of tooth bottom holes of attacking on a work piece, the interval of two adjacent tooth bottom holes of attacking is less than the condition of the minimum interval that two screw tap subassemblies can set up moreover, and this moment, owing to can't correspond a plurality of tooth bottom holes of attacking one to one and set up a plurality of screw tap subassemblies, so at present, to this kind of condition, everybody generally adopts a screw tap subassembly to carry out the mode of attacking the tooth to a plurality of tooth bottom holes of attacking in proper order, this kind of mode, inefficiency.

Disclosure of Invention

The present invention provides a tapping method and a servo rotary table tapping machine, aiming at the above-mentioned defects in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in one aspect, a tapping method is provided, wherein the tapping method comprises the following steps:

dividing a plurality of tapping bottom holes on a workpiece into a plurality of groups according to a grouping rule, wherein the grouping rule is as follows: the minimum distance between the plurality of tapping bottom holes in the same group is larger than the minimum distance which can be set by two tap assemblies;

according to the number of the groups, the tapping stations with the same number are arranged, and one tapping station corresponds to one group of tapping bottom holes;

according to the distribution condition of a plurality of tapping bottom holes in the same group, a plurality of screw tap assemblies are arranged at tapping stations corresponding to the tapping bottom holes in the group, and the screw tap assemblies correspond to the tapping bottom holes in the group one by one;

feeding the workpiece to the jig;

sequentially conveying the jig to a plurality of tapping stations, and simultaneously tapping a plurality of tapping bottom holes corresponding to the tapping stations by a plurality of screw tap assemblies arranged at the tapping stations;

and taking down the workpiece after tapping from the jig.

In another aspect, a servo rotary disc tapping machine is provided, which is based on the tapping method, wherein the servo rotary disc tapping machine includes a machine frame; the rack is rotatably provided with a turntable; the rack is sequentially provided with a feeding station, a plurality of tapping stations and a discharging station along the rotating direction of the turntable; the rotary table is fixedly provided with a plurality of jigs for clamping workpieces, and the plurality of jigs correspond to the feeding station, the tapping station and the discharging station one by one; a plurality of screw tap units are arranged above the rotary table and correspond to the tapping stations one by one; the tap unit comprises a plurality of tap components for tapping, and the tap components correspond to a plurality of tapping bottom holes of the workpiece to be tapped at the tapping station one by one; the machine frame is also provided with a driving assembly for driving all the tap assemblies to operate together.

The servo rotary table tapping machine is characterized in that the driving assembly is used for driving the screw tap assembly to rotate; the tap assembly comprises a tap; a tooth rod is fixedly arranged at the tail end of the screw tap; the tail end of the tooth rod is connected with the driving assembly through a telescopic rod; the outside of the tooth bar is sleeved with a tooth bar sleeve matched with the tooth bar; the rack is provided with a fixing frame for fixing the dental rod sleeve.

The servo turntable tapping machine comprises a telescopic rod, a positioning rod and a tapping head, wherein the telescopic rod comprises an inner rod and an inner rod sleeve sleeved outside the inner rod; the cross section of the inner rod is polygonal; one end of the inner rod is fixedly connected with the tail end of the tooth rod through a first universal joint, and the other end of the inner rod extends into the inner rod sleeve; one end of the inner rod sleeve, which is far away from the inner rod, is connected with the driving component.

The servo rotary disc tapping machine is characterized in that one end, far away from the inner rod, of the inner rod sleeve is connected with the driving assembly through a second universal joint.

The invention discloses a servo rotary disc tapping machine, wherein a driving assembly comprises a multi-shaft gear box, a first motor and a mounting frame for mounting the multi-shaft gear box and the first motor; the multi-shaft gearbox includes an input shaft and a plurality of output shafts; the output shaft is used for being connected with the second universal joint; the input shaft is fixedly sleeved with a first driven synchronous belt wheel; a first driving synchronous belt pulley matched with the first driven synchronous belt pulley is fixedly sleeved on an output shaft of the first motor; the first driving synchronous pulley and the first driven synchronous pulley are connected through a first synchronous belt; the mounting frame is fixedly arranged on the rack.

The servo turntable tapping machine is characterized in that a second motor is fixedly arranged on the mounting frame; a second driving synchronous belt pulley is fixedly sleeved on an output shaft of the second motor; the mounting rack is also provided with two longitudinal threaded rods; the two threaded rods are respectively arranged corresponding to the two ends of the fixing frame; one end of the threaded rod is rotatably connected with the mounting frame, and the other end of the threaded rod is fixedly sleeved with a second driven synchronous belt wheel; the two second driven synchronous belt wheels are connected with the second driving synchronous belt wheel through a second synchronous belt; the threaded rod is also sleeved with a threaded sleeve matched with the threaded rod; the thread sleeve is fixedly provided with a movable plate; the movable plate is fixedly provided with two connecting rods; the connecting rod is fixedly connected with the fixing frame.

The servo rotary disc tapping machine is characterized in that a plurality of universal balls for supporting the rotary disc are arranged below the rotary disc, and the universal balls are arranged along the circumferential direction of the rotary disc; the universal ball is fixedly arranged on the rack; the frame is also fixedly provided with a divider used for driving the turntable to rotate.

The servo rotary disc tapping machine is characterized in that the feeding station is provided with a feeding assembly used for taking the tapped workpiece from the jig.

The servo turntable tapping machine is characterized in that a blanking waiting station and a tapping waiting station are further arranged on the rack; the blanking waiting station is arranged between the blanking station and the tapping station positioned at the tail end; the tapping waiting station is arranged between the feeding station and the tapping station positioned at the head end.

The invention has the beneficial effects that: the steps of tapping are as follows:

the method comprises the following steps: dividing a plurality of tapping bottom holes on the workpiece into a plurality of groups according to a grouping rule, wherein the grouping rule is as follows: the minimum distance between the plurality of tapping bottom holes in the same group is larger than the minimum distance which can be set by two tap assemblies;

step two: according to the number of the groups, the tapping stations with the same number are arranged, and one tapping station corresponds to one group of tapping bottom holes;

step three: according to the distribution condition of a plurality of tapping bottom holes in the same group, a plurality of screw tap assemblies are arranged at tapping stations corresponding to the tapping bottom holes in the group, and the screw tap assemblies correspond to the tapping bottom holes in the group one by one;

step four: feeding the workpiece to the jig;

step five: sequentially conveying the jig to a plurality of tapping stations, and simultaneously tapping a plurality of tapping bottom holes corresponding to the tapping stations by a plurality of screw tap assemblies arranged at the tapping stations;

step six: and taking down the workpiece after tapping from the jig.

According to the minimum interval that the interval and two screw tap subassemblies of attacking the tooth bottom hole can set up, the tooth bottom hole of attacking to on the work piece is divided into groups of difference, the tooth bottom hole of attacking that is less than the minimum interval that two screw tap subassemblies can set up with the interval divides to the difference, the tooth bottom hole of attacking of different groups is responsible for attacking by the screw tap subassembly of different tapping stations, thereby solve the problem that a plurality of tooth bottom holes of attacking that can't correspond one to one set up a plurality of screw tap subassemblies, the tooth bottom hole of attacking that the interval is greater than the minimum interval that two screw tap subassemblies can set up then divides to in the same group, and attack the tooth simultaneously by a plurality of screw tap subassemblies rather than corresponding, high efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:

FIG. 1 is a flow chart of a method of tapping according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a servo rotary disc tapping machine according to a second embodiment of the present invention;

fig. 3 is an assembly schematic diagram of a tap unit and a driving assembly of a servo rotary disc tapping machine according to a second embodiment of the invention;

fig. 4 is a schematic view of another assembly of the tap unit and the drive assembly of the servo rotary disc tapping machine according to the second embodiment of the present invention;

FIG. 5 is an assembly view of a rack, a turntable and a splitter of a servo turntable tapping machine according to a second embodiment of the present invention;

fig. 6 is an assembly schematic view (cross-sectional view) of a rack, a turntable and a splitter of a servo turntable tapping machine according to a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.