CN205110970U

CN205110970U - Automatic tapping machine

Info

Publication number: CN205110970U
Application number: CN201520878414.4U
Authority: CN
Inventors: 刘伟锋; 郝伟周
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-05
Filing date: 2015-11-05
Publication date: 2016-03-30
Anticipated expiration: 2025-11-05

Abstract

The utility model relates to an automatic tapping machine, including frame and hopper mechanism, its characterized in that: install main shaft feed mechanism, tapping mechanism and pushing equipment in the frame, hopper mechanism sets up at the top of tapping mechanism, and the headstock is fixed in the frame between main shaft feed mechanism and tapping mechanism for offer straight shank screw tap power when the tapping. The utility model discloses need not add long handle and welding flared handle, can directly use the straight shank screw tap go on consecutively to work pieces such as nuts in thread processing, solved that the prior art motor frequently just reverses, fragile motor to and the screw tap that uses the welding flared handle increases expense and the shortcoming of the cost of screw tap in man -hour, has improved the quality and the output of nut greatly.

Description

A kind of automatic tapping machine

Technical field

The utility model relates to a kind of special equipment for tapping, especially directly uses straight shank tap the workpiece such as nut to be carried out to the tapping machine of internal thread machining continuously.

Background technology

In the component of machine processing such as nut, usually to make internal thread (tapping), tapping machine two types nothing but conventional at present: one, use straight shank tap, screw tap is arranged in the chuck of main shaft.During work, first part to be processed is clamped, then starter motor drives chuck to rotate, by controlling moving axially of main shaft, thus screw tap is driven to rotate incision, machining internal thread, when screw tap arrives the predetermined degree of depth, motor reverses immediately, and screw tap also reverses thereupon and exits processing parts, completes an one way tapping.Two, bent shank tap, is applied on Horizontal tap usually, does not need motor reversal and continuablely carries out screw thread process to nut blank.During work, the nut blank of hexagonal guide rail (being commonly called as runway) positioning and clamping mechanism is fallen by hopper, pushed on screw tap by push rod, and screw tap curved handle part is shifted onto on the top cover of chuck, therefore while screw tap rotates together with chuck, screw tap does feed motion again, after tap tapping, nut finished product moves successively along the straight line portion of tap holder, and is fallen in finished product bucket by the part that tap holder is bending.

Use the tapping machine of straight shank tap, do not need lengthening handle and welding curved handle, but the shortcoming that the frequent rotating of motor has fragile motor, wastes energy, and screw tap rotating repeatedly, exacerbate the wearing and tearing of screw tap, affect quality and the output of screw thread.Use the tapping machine of bent shank tap, screw tap does not need reversion to complete tapping, effectively decreases energy consumption, improves electrical machinery life, reduces screw tap wearing and tearing simultaneously, improves output.But screw tap improves the cost of work time cost and screw tap when welding curved handle; When after screw tap lengthening handle, rigidity is deteriorated, and the product quality processed declines; On the other hand, when processing parts is longer, part not by the sweep of bent shank tap, thus limits the range of work.In sum, how to provide a kind of and use straight shank tap, do not need that screw tap reverses, high, energy-conservation, the efficient tapping machine of accuracy of thread is urgently to be resolved hurrily.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and uses straight shank tap and screw tap does not need to reverse and can complete the automatic tapping machine of tapping continuously.

Of the present utility modelly be achieved in that a kind of automatic tapping machine, comprise frame and bunker mechanism, it is characterized in that: axis feeding mechanism, tapper mechanism and pusher are installed in frame, axis feeding mechanism advances and rollback for driving straight shank tap, completes to rotate tapping and rollback initial position and realize blanking; Tapper mechanism is used for conveying, floating clamping mechanism blank and semi-finished product, simultaneously positioning straight square-shank tap; Bunker mechanism is arranged on the top of tapper mechanism, and blank is positioned in hopper, is sequentially arranged in guide plate by poking device by blank, and after hopper, blank is positioned between straight shank tap head front and push rod; Blank is shifted onto the clamp rear end arranged in tapper mechanism by pusher, floating clamping mechanism blank; Main spindle box is fixed in the frame between axis feeding mechanism and tapper mechanism, for being supplied to straight shank tap power when tapping.

The purpose of this utility model can also realize like this: described axis feeding mechanism is made up of the first ball screw framework, the first servomotor, the first push pedal, main shaft, first ball screw framework is installed in frame by the first supporting seat, the rotary motion of the first servomotor is become the rectilinear motion of the first push pedal, main shaft; First servomotor is fixed in frame by the first motor mount, is connected with the first ball-screw by the first shaft coupling; First push pedal is fixed on the first ball nut; Main shaft is connected with the first push pedal with straight shank tap is coaxial; Main shaft is provided with the spool gear engagement that narrow gear is arranged with main spindle box, can slide axially again along spool gear teeth groove simultaneously, and such main shaft not only can by the power transmission of main spindle box to straight shank tap but also can clutch screw tap; Main shaft moves along straight shank tap axis direction, stops mobile after four square holes of main shaft and the straight shank tap afterbody four directions of location combine.

Described tapper mechanism is made up of dovetail guide, sliding clamp mechanism, square shift fork, governor motion, and dovetail guide is fixed in frame perpendicular to straight shank tap axisymmetrical; Sliding clamp mechanism is made up of the guide rail of symmetry, clamp, spring, guide rail is arranged symmetrically with and forms blank shape passage, be used for holding blank, straight shank tap, dove-tail form guide pass is set simultaneously and dovetail guide is slidably matched, be provided with hole in addition and install clamp, clamp is floating clamping mechanism blank and semi-finished product under the action of the spring; Square shift fork is made up of pusher dog, a point body nut, and pusher dog is inserted in the square hole of guide rail setting, is fixedly connected with a point body nut, is divided into left-handed shift fork and dextrorotation shift fork difference spinning on the left and right screw thread of governor motion according to nut; Governor motion is made up of adjusting screw, bearing block, and bearing block is fixed in frame and is used for supporting adjusting screw, regulates the opening and closing of blank shape passage to adapt to the blank of different size by helical structure.

Described pusher is made up of the second ball screw framework, the second servomotor, the second push pedal, push rod, and the second servomotor is fixed in frame by the second motor mount, is connected with the second ball-screw by the second shaft coupling, second push pedal is fixed on the second ball nut, push rod is coaxial with straight shank tap, is arranged in the second push pedal perpendicular to hopper, second ball screw framework is installed to the rectilinear motion that the rotary motion of the second servomotor can be become by frame the second push pedal, push rod by the second supporting seat, push rod makes slideway with the guide rail of sliding clamp organization establishes, promote the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank, the spool gear that meanwhile main spindle box is arranged is started working and is driven straight shank tap to rotate, clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, push rod continues according to blank pitch size synchronizing moving, promote to be carried out tapping processing by the blank of floating clamping mechanism, when the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, original semi-finished product complete tapping this moment, first servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position, the second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located.

Described tapping machine adopts four axle double control.

Described tapping machine straight shank tap axis and horizontal plane angle are 30 degree.

The utility model has technique effect useful as follows: do not need lengthening handle and welding curved handle, can directly use straight shank tap to carry out internal thread machining continuously to workpiece such as nuts.Solve the frequent rotating of prior art motor, fragile motor, and use the screw tap of welding curved handle to increase the shortcoming of the cost of work time cost and screw tap, substantially increase quality and the output of nut.The utility model uses straight shank tap, do not need that screw tap reverses, high, energy-conservation, the efficient tapping machine of accuracy of thread is technically a kind of pioneering at screw thread process both at home and abroad.

Accompanying drawing explanation

Fig. 1 is example structure schematic diagram of the present utility model

Fig. 2 is embodiment double control axis feeding structural scheme of mechanism of the present utility model

Fig. 3 is embodiment four axle tapper mechanism schematic diagram of the present utility model

Fig. 4 is embodiment single shaft tapper mechanism schematic diagram of the present utility model

Fig. 5 is embodiment double control pusher schematic diagram of the present utility model

Fig. 6 is the utility model tapping process principle figure, represents main shaft, straight shank tap, push rod original state

Fig. 7 is the utility model tapping process principle figure, represents main shaft and straight shank tap bonding state

Fig. 8 is the utility model tapping process principle figure, represents that straight shank tap starts rotation status

Fig. 9 is the utility model tapping process principle figure, and represent that tapping completes, straight shank tap stops the rotation state

Figure 10 is the utility model tapping process principle figure, and expression main shaft, push rod return initial position

Detailed description of the invention

For solving prior art existing problems, mentality of designing of the present utility model is: in tapper mechanism, arrange clamp, by its front end floating clamping mechanism, locate with half-finished straight shank tap, be located at the main shaft of straight shank tap coaxial direction, along the rectilinear movement of straight shank tap axis direction, stop mobile after four square holes of main shaft and the straight shank tap afterbody four directions of location combine automatically; Blank in heaps navigates between straight shank tap head front and push rod by bunker mechanism successively, push rod rectilinear movement will complete the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank; Meanwhile main spindle box is started working and is driven straight shank tap to rotate, and the clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, and push rod continues according to blank pitch size synchronizing moving, promotes to be carried out tapping processing by the blank of floating clamping mechanism; When the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, and original semi-finished product complete tapping this moment; First servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position; The second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located, and circulation enters next tapping flow process.

Described bunker mechanism is arranged on the top of tapping machine, and will put in hopper by blank in batch, poking device be sequentially arranged in blank in heaps in guide plate, is positioned between straight shank tap head front and push rod through hopper blank, known by people.

Described axis feeding mechanism is made up of the first ball screw framework, the first servomotor, the first push pedal, main shaft etc., first ball screw framework is installed in frame by the first supporting seat, the rotary motion of the first servomotor can be become the rectilinear motion of the first push pedal, main shaft; First servomotor is fixed in frame by the first motor mount, is connected with the first ball-screw by the first shaft coupling; First push pedal is fixed on the first ball nut; Main shaft is connected with the first push pedal with straight shank tap is coaxial; Main shaft is provided with the spool gear engagement that narrow gear is arranged with main spindle box, can slide axially again along spool gear teeth groove simultaneously, and such main shaft not only can by the power transmission of main spindle box to straight shank tap but also can clutch screw tap; Main shaft moves along straight shank tap axis direction, stops mobile after four square holes of main shaft and the straight shank tap afterbody four directions of location combine automatically.

Described tapper mechanism is made up of dovetail guide, sliding clamp mechanism, square shift fork, governor motion etc., and dovetail guide is fixed in frame perpendicular to straight shank tap axisymmetrical; Sliding clamp mechanism is made up of the guide rail, clamp, spring etc. of symmetry, guide rail is arranged symmetrically with and forms blank shape passage, be used for holding blank, straight shank tap, dove-tail form guide pass is set simultaneously and dovetail guide is slidably matched, be provided with hole in addition and install clamp, clamp is floating clamping mechanism blank and semi-finished product under the action of the spring; Square shift fork is made up of pusher dog, a point body nut, and pusher dog is inserted in the square hole of guide rail setting, is fixedly connected with a point body nut, is divided into left-handed shift fork and dextrorotation shift fork difference spinning on the left and right screw thread of governor motion according to nut; Governor motion is made up of adjusting screw, bearing block, and bearing block is fixed in frame and is used for supporting adjusting screw, regulates the opening and closing of blank shape passage to adapt to the blank of different size by helical structure.The tapper mechanism arranged is mainly used to conveying, floating clamping mechanism blank and semi-finished product, simultaneously positioning straight square-shank tap.

Described pusher is made up of the second ball screw framework, the second servomotor, the second push pedal, push rod etc., and the second servomotor is fixed in frame by the second motor mount, is connected with the second ball-screw by the second shaft coupling, second push pedal is fixed on the second ball nut, push rod is coaxial with straight shank tap, is arranged in the second push pedal perpendicular to hopper, second ball screw framework is installed to the rectilinear motion that the rotary motion of the second servomotor can be become by frame the second push pedal, push rod by the second supporting seat, push rod makes slideway with the guide rail of sliding clamp organization establishes, promote the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank, the spool gear that meanwhile main spindle box is arranged is started working and is driven straight shank tap to rotate, clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, push rod continues according to blank pitch size synchronizing moving, promote to be carried out tapping processing by the blank of floating clamping mechanism, when the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, original semi-finished product complete tapping this moment, first servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position, the second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located.

Described main spindle box is fixed in frame, for being supplied to straight shank tap power during tapping known by people.

The utility model tapping machine can adopt the mode of single shaft or Multi-axis Machining, and take into full account the cost performance of equipment and the output of coupling upper track technique, four axle double control are decided to be conventional type of the present invention, and following examples are also set forth with four axle double control types.

The utility model tapping machine straight shank tap axis (specific design can by above frame) and horizontal plane angle in principle scope 0-90 degree (namely the present invention can be that horizontal, inclined is to vertical), take into full account equipment rational in infrastructure, cost is thrifty, be decided to be conventional type of the present invention by 30 degree, following examples are also set forth with 30 degree of types.

The utility model becomes 30 degree of types as embodiment using four axle double control, straight shank tap axis with horizontal plane; with reference to the accompanying drawings embodiment of the present utility model is described; following embodiment, only for illustration of the technical solution of the utility model, should not be construed as the restriction to the utility model protection domain.

Fig. 1 represents tapping machine overall structure schematic diagram, and the position relationship that each parts are installed is described.Tapping machine of the present utility model is made up of parts such as bunker mechanism 1, axis feeding mechanism 2, tapper mechanism 3, pusher 4, main spindle box 5, frames 6.Tapper mechanism 3 is arranged between axis feeding mechanism 2 and pusher 4, the clamp 318 front end floating clamping mechanism set by it, locates straight shank tap 35 with semi-finished product 316, axis feeding mechanism 2 adopts double control (promoting two main shafts 21 by first servomotor 27), two main shafts 21 are coaxially installed with straight shank tap 35 respectively, stop mobile after four square holes 212 that main shaft 21 is moved straightly to main shaft and the straight shank tap afterbody four directions 352 of locating are combined, bunker mechanism 1 is arranged on the top of tapping machine, and blank 11 is put in hopper in batch, and blank 11 in heaps is sequentially arranged in guide plate by poking device, is positioned between straight shank tap head 351 front and push rod 41 through hopper 313 blank, pusher 4 adopts double control (promoting two push rods 41 by second servomotor 47) equally, push rod 41 is coaxially installed with the blank 11 of location, push rod 41 moves linearly, to the blank 11 of location be completed along straight shank tap 35 axis direction top to screw tap head 351, shift the clamp 318 arranged in tapper mechanism 3 onto, by its rear end floating clamping mechanism blank 11, the main spindle box 5 being meanwhile fixed on frame 6 is started working and is driven straight shank tap 35 to rotate, clamping semi-finished product 316 by clamp 318 carry out tapping processing along straight shank tap 35 axis direction, push rod 41 continues according to blank 11 pitch size synchronizing moving, promote to be carried out tapping processing by the blank 11 of floating clamping mechanism, when blank 11 tapping being positioned at clamp 318 rear end is to clamp front position, push rod 41 moves and straight shank tap 35 rotates and stops simultaneously, original semi-finished product 316 tapping is this moment finished product 36, the first servomotor 27 that axis feeding mechanism 2 is arranged reverses, main shaft 21 self-return, main shaft four square hole 212 departs from straight shank tap afterbody four directions 352, blank 11 is processed to semi-finished product 316 and together rests in sliding clamp mechanism with straight shank tap 35, along with the self-return of main shaft 21, finished product 36 relies in gravity landing finished product box by screw tap staight shank position, the second servomotor 47 that pusher 4 is arranged reverses, and after push rod 41 self-return, new blank 11 falls between straight shank tap head 351 front and push rod 41 and located.

Fig. 2 represents tapping machine double control axis feeding structural scheme of mechanism, comprises the first ball screw framework, the first push pedal 23, main shaft 21, first servomotor 27, first motor cabinet 28 etc. that are made up of the first ball-screw 22, first ball nut 24, first supporting seat 25; First servomotor 27 is connected with the first motor cabinet 28 being fixed on frame 6, is connected with the first ball-screw 22 by the first shaft coupling 26; First push pedal 23 is fixed on the first ball nut 24; First supporting seat 25 of the first ball screw framework is installed in frame 6, the rotary motion of the first servomotor 27 is become the rectilinear motion of the first push pedal 23, main shaft 21; Main shaft 21 and straight shank tap 35 are coaxially installed in the first push pedal 23, main shaft 21 is provided with the spool gear (not shown) engagement that narrow gear 211 is arranged with main spindle box, can slide axially along spool gear teeth groove (not shown) again simultaneously, so not only can by the power transmission of main spindle box 5 to straight shank tap 35 but also can clutch straight shank tap 35; Main shaft 21 moves along straight shank tap 35 axis direction, stops mobile after four square holes 212 of main shaft and the straight shank tap afterbody four directions 352 of location combine automatically.

Fig. 3, Fig. 4 represent tapping machine tapper mechanism schematic diagram, and tapper mechanism 3 is arranged between pusher 2 and axis feeding mechanism 4; Guide rail 311, clamp 318, cover plate 317, spring 319 form sliding clamp mechanism, guide rail 311 is arranged symmetrically with and forms blank shape passage, one of them guide rail 311 is provided with hole and clamp 318 is slidably matched, spring one end holds out against cover plate 317 other end and holds out against clamp 318, under the effect of spring 319, clamp blank 11 and semi-finished product 316, guide rail 311 two ends are provided with dove-tail form guide pass and dovetail guide 312 is slidably matched; Dovetail guide 312 is fixed in frame 6 perpendicular to straight shank tap 35 axisymmetrical; Adjusting screw 34, bearing block 32, handwheel 33 form governor motion, and bearing block 32 is fixed in frame 6 and supports adjusting screw 34, and adjusting screw 34 is arranged alternately left and right hand thread; Pusher dog 315, a point body nut 314 form square shift fork, pusher dog 315 is fixedly connected with a point body nut 314, pusher dog 315 is inserted in the square hole of guide rail 311 setting, be divided in left-handed shift fork and the dextrorotation shift fork left and right hand thread that spinning is arranged alternately at adjusting screw 34 respectively according to point body nut 314 rotation direction, be rotatably installed in the handwheel 33 of adjusting screw 34 spindle nose by the paired opening and closing of the square shift fork of helical structure, the guide rail 311 that is arranged symmetrically with is driven to slide in dovetail guide 312 opening and closing, to adapt to the blank of different size.

Fig. 5 represents tapping machine double control pusher schematic diagram, comprises the second ball screw framework, the second push pedal 43, push rod 41, second servomotor 47, second shaft coupling 46, second motor cabinet 48 etc. that are made up of the second ball-screw 42, second ball nut 44, second supporting seat 45; Second servomotor 47 is connected with the second motor cabinet 48 being fixed on frame 6, is connected with the second ball-screw 42 by the second shaft coupling 46; Second push pedal 43 is fixed on the second ball nut 44; Push rod 41 is coaxial with straight shank tap 35, is installed in the T-slot 431 of the second push pedal 43 setting; Second supporting seat 45 of the second ball screw framework is installed in frame 6, the rotary motion of the second servomotor 47 is become the rectilinear motion of the second push pedal 43, push rod 41, push rod 41 is made slideway with the guide rail 311 that tapper mechanism 3 is arranged and is promoted the blank 11 of location along straight shank tap 35 axis direction top to straight shank tap head 351; Push rod 41 head should make hollow shape to hold straight shank tap head 351 when tapping and to get rid of iron filings; Blank 11 is shifted onto clamp 318 rear end arranged in tapper mechanism 3 by push rod 41, floating clamping mechanism blank 11; The spool gear (not shown) that meanwhile main spindle box is arranged starts to rotarily drive straight shank tap 35 and rotates, clamping semi-finished product 316 by clamp 318 carry out tapping processing along straight shank tap 35 axis direction, push rod 41 continues according to blank 11 pitch size synchronizing moving, promote to be carried out tapping processing by the blank 11 of floating clamping mechanism, when the blank tapping being positioned at clamp 318 rear end is to clamp 318 front position, the movement of push rod 41 and the rotation of straight shank tap 35 stop simultaneously, and original semi-finished product 316 complete tapping this moment.

The first servomotor 27 that axis feeding mechanism 2 is arranged reverses, main shaft 21 self-return, main shaft four square hole 212 departs from straight shank tap afterbody four directions 352, blank 11 is processed to semi-finished product 316 and together rests in sliding clamp mechanism with straight shank tap 35, along with the self-return of main shaft 21, finished product 36 relies in gravity landing finished product box by screw tap staight shank position; The second servomotor 47 that pusher 4 is arranged reverses, and after push rod 41 self-return, new blank 11 falls between straight shank tap head 351 front and push rod 41 and located, and circulation enters next tapping flow process.

Operation principle and process:

Fig. 6 to Figure 10 carries out principle explanation, for convenience of description for single shaft to the utility model tapping flow process.

In figure 6, spring 319 extrudes clamp 318, by its front end floating clamping mechanism, locates straight shank tap 35 with semi-finished product 316; The main shaft 21 being located at straight shank tap 35 coaxial direction is mobile along straight shank tap 35 axis direction (in figure upper right side), four square holes 212 that main shaft 21 is arranged stretch to straight shank tap afterbody four directions 352, due to a upper tapping flow process main shaft 21 stop the rotation after four square holes 212 just throw off from straight shank tap afterbody four directions 352, therefore main shaft four square hole 212 fits like a glove with 352 positions, straight shank tap afterbody four directions.

In the figure 7, after main shaft four square hole 212 and straight shank tap afterbody four directions 352 complete combination automatically, main shaft 21 stops mobile; The blank 11 that push rod 41 has promoted location along straight shank tap 35 axis direction (in figure lower left) pushes up to straight shank tap head 351, and when shifting clamp 318 rear end (as shown in Figure 8) onto, spring 319 extrudes clamp 318 and clamps blank 11.

In fig. 8, main shaft 41 starts to rotate drive straight shank tap 35 simultaneously and rotates, and tapping processing starts; Clamping semi-finished product 316 by clamp 318 carry out tapping processing along straight shank tap 35 axis direction, and push rod 41 continues according to blank 11 pitch size synchronizing moving, promote to be carried out tapping processing by the blank 11 of floating clamping mechanism.

As shown in Figure 9, push rod 41 promotes to stop when blank 11 is machined to semi-finished product 316 position, and main shaft 21 stops the rotation simultaneously, and the semi-finished product 316 now going up a tapping flow process are processed as finished product 36.

In Fig. 10, stop during main shaft 21 rollback initial position, certain space is formed between four square hole 212 front ends and straight shank tap afterbody four directions 352, because straight shank tap 35 axis and horizontal plane angled, therefore finished product 36 relies on gravity to be slipped to above-mentioned space from straight shank tap afterbody four directions 352, when angle is little or the lightweight dependence gravity deficiency of blank also can help blanking by setting device (as cylinder) with landing, its thinking also within the scope of the present invention; In addition, when main shaft 21 rollback, push rod 41 is simultaneously along straight shank tap 35 axis direction (in figure upper right side) rollback, and stop to initial position, new blank 11 falls between straight shank tap head 351 front and push rod 41 and located.Be circulated to Fig. 6 and form continuous self-tapping.

Tapping machine pusher 4 of the present utility model, axis feeding mechanism 2 adopt servomotor as feeding power, and also can use the power sources such as stepper motor, pneumatic and hydraulic pressure, its thinking is included within the scope of the utility model.

Claims

1. an automatic tapping machine, comprise frame and bunker mechanism, it is characterized in that: in frame, be provided with axis feeding mechanism, tapper mechanism and pusher, axis feeding mechanism advances and rollback for driving straight shank tap, completes to rotate tapping and rollback initial position and realize blanking; Tapper mechanism is used for conveying, floating clamping mechanism blank and semi-finished product, simultaneously positioning straight square-shank tap; Bunker mechanism is arranged on the top of tapper mechanism, and blank is positioned in hopper, is sequentially arranged in guide plate by poking device by blank, and after hopper, blank is positioned between straight shank tap head front and push rod; Blank is shifted onto the clamp rear end arranged in tapper mechanism by pusher, floating clamping mechanism blank; Main spindle box is fixed in the frame between axis feeding mechanism and tapper mechanism, for being supplied to straight shank tap power when tapping.

2. automatic tapping machine according to claim 1, it is characterized in that: described axis feeding mechanism is made up of the first ball screw framework, the first servomotor, the first push pedal, main shaft, first ball screw framework is installed in frame by the first supporting seat, the rotary motion of the first servomotor is become the rectilinear motion of the first push pedal, main shaft; First servomotor is fixed in frame by the first motor mount, is connected with the first ball-screw by the first shaft coupling; First push pedal is fixed on the first ball nut; Main shaft is connected with the first push pedal with straight shank tap is coaxial; Main shaft is provided with the spool gear engagement that narrow gear is arranged with main spindle box, can slide axially again along spool gear teeth groove simultaneously, and such main shaft not only can by the power transmission of main spindle box to straight shank tap but also can clutch screw tap; Main shaft moves along straight shank tap axis direction, stops mobile after four square holes of main shaft and the straight shank tap afterbody four directions of location combine.

3. automatic tapping machine according to claim 1, is characterized in that: described tapper mechanism is made up of dovetail guide, sliding clamp mechanism, square shift fork, governor motion, and dovetail guide is fixed in frame perpendicular to straight shank tap axisymmetrical; Sliding clamp mechanism is made up of the guide rail of symmetry, clamp, spring, guide rail is arranged symmetrically with and forms blank shape passage, be used for holding blank, straight shank tap, dove-tail form guide pass is set simultaneously and dovetail guide is slidably matched, be provided with hole in addition and install clamp, clamp is floating clamping mechanism blank and semi-finished product under the action of the spring; Square shift fork is made up of pusher dog, a point body nut, and pusher dog is inserted in the square hole of guide rail setting, is fixedly connected with a point body nut, is divided into left-handed shift fork and dextrorotation shift fork difference spinning on the left and right screw thread of governor motion according to nut; Governor motion is made up of adjusting screw, bearing block, and bearing block is fixed in frame and is used for supporting adjusting screw, regulates the opening and closing of blank shape passage to adapt to the blank of different size by helical structure.

4. automatic tapping machine according to claim 1, it is characterized in that: described pusher is made up of the second ball screw framework, the second servomotor, the second push pedal, push rod, second servomotor is fixed in frame by the second motor mount, is connected with the second ball-screw by the second shaft coupling, second push pedal is fixed on the second ball nut, push rod is coaxial with straight shank tap, is arranged in the second push pedal perpendicular to hopper, second ball screw framework is installed to the rectilinear motion that the rotary motion of the second servomotor can be become by frame the second push pedal, push rod by the second supporting seat, push rod makes slideway with the guide rail of sliding clamp organization establishes, promote the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank, the spool gear that meanwhile main spindle box is arranged is started working and is driven straight shank tap to rotate, clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, push rod continues according to blank pitch size synchronizing moving, promote to be carried out tapping processing by the blank of floating clamping mechanism, when the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, original semi-finished product complete tapping this moment, first servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position, the second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located.

5. the automatic tapping machine according to claim 1,2,3 or 4, is characterized in that: described tapping machine adopts four axle double control.

6. the automatic tapping machine according to claim 1,2,3 or 4, is characterized in that: described tapping machine straight shank tap axis and horizontal plane angle are 30 degree.

7. automatic tapping machine according to claim 2, is characterized in that: described tapper mechanism is made up of dovetail guide, sliding clamp mechanism, square shift fork, governor motion, and dovetail guide is fixed in frame perpendicular to straight shank tap axisymmetrical; Sliding clamp mechanism is made up of the guide rail of symmetry, clamp, spring, guide rail is arranged symmetrically with and forms blank shape passage, be used for holding blank, straight shank tap, dove-tail form guide pass is set simultaneously and dovetail guide is slidably matched, be provided with hole in addition and install clamp, clamp is floating clamping mechanism blank and semi-finished product under the action of the spring; Square shift fork is made up of pusher dog, a point body nut, and pusher dog is inserted in the square hole of guide rail setting, is fixedly connected with a point body nut, is divided into left-handed shift fork and dextrorotation shift fork difference spinning on the left and right screw thread of governor motion according to nut; Governor motion is made up of adjusting screw, bearing block, and bearing block is fixed in frame and is used for supporting adjusting screw, regulates the opening and closing of blank shape passage to adapt to the blank of different size by helical structure.

8. automatic tapping machine according to claim 2, it is characterized in that: described pusher is made up of the second ball screw framework, the second servomotor, the second push pedal, push rod, second servomotor is fixed in frame by the second motor mount, is connected with the second ball-screw by the second shaft coupling, second push pedal is fixed on the second ball nut, push rod is coaxial with straight shank tap, is arranged in the second push pedal perpendicular to hopper, second ball screw framework is installed to the rectilinear motion that the rotary motion of the second servomotor can be become by frame the second push pedal, push rod by the second supporting seat, push rod makes slideway with the guide rail of sliding clamp organization establishes, promote the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank, the spool gear that meanwhile main spindle box is arranged is started working and is driven straight shank tap to rotate, clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, push rod continues according to blank pitch size synchronizing moving, promote to be carried out tapping processing by the blank of floating clamping mechanism, when the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, original semi-finished product complete tapping this moment, first servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position, the second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located.

9. automatic tapping machine according to claim 7, it is characterized in that: described pusher is made up of the second ball screw framework, the second servomotor, the second push pedal, push rod, second servomotor is fixed in frame by the second motor mount, is connected with the second ball-screw by the second shaft coupling, second push pedal is fixed on the second ball nut, push rod is coaxial with straight shank tap, is arranged in the second push pedal perpendicular to hopper, second ball screw framework is installed to the rectilinear motion that the rotary motion of the second servomotor can be become by frame the second push pedal, push rod by the second supporting seat, push rod makes slideway with the guide rail of sliding clamp organization establishes, promote the blank of location along straight shank tap axis direction top to screw tap head, shift the clamp arranged in tapper mechanism onto, by its rear end floating clamping mechanism blank, the spool gear that meanwhile main spindle box is arranged is started working and is driven straight shank tap to rotate, clamping semi-finished product by clamp carry out tapping processing along straight shank tap axis direction, push rod continues according to blank pitch size synchronizing moving, promote to be carried out tapping processing by the blank of floating clamping mechanism, when the blank tapping being positioned at clamp rear end is to clamp front position, the movement of push rod and the rotation of straight shank tap stop simultaneously, original semi-finished product complete tapping this moment, first servomotor reversion of axis feeding organization establishes, main shaft self-return, main shaft four square hole and straight shank tap afterbody four directions depart from, blank is processed to semi-finished product and straight shank tap together rests in sliding clamp mechanism, along with the self-return of main shaft, finished product relies in gravity landing finished product box by screw tap staight shank position, the second servomotor reversion that pusher is arranged, after push rod self-return, new blank falls between straight shank tap head front and push rod and is located.

10. automatic tapping machine according to claim 9, is characterized in that: described tapping machine adopts four axle double control, and straight shank tap axis and horizontal plane angle are 30 degree.