CN203541763U

CN203541763U - Automatic tapping machine

Info

Publication number: CN203541763U
Application number: CN201320669063.7U
Authority: CN
Inventors: 俞中苏
Original assignee: ZHOUSHAN DINGHAI YONGFENG MACHINERY PLANT
Current assignee: ZHOUSHAN DINGHAI YONGFENG MACHINERY PLANT
Priority date: 2013-10-28
Filing date: 2013-10-28
Publication date: 2014-04-16
Anticipated expiration: 2023-10-28

Abstract

The utility model discloses an automatic tapping machine. The automatic tapping machine comprises a machine frame, a limit and injection device, a lifting shaft and a drill bit clamp arranged at the end of the lifting shaft. The automatic tapping machine is characterized in that guide rails are perpendicularly arranged on the machine frame in a square mode, each guide rail is provided with a thread tap lifting frame in a sliding mode, two guide rods are arranged on the thread tap lifting frame in parallel, each guide rod is provided with a movable bearing in a sliding mode, three connection boards are arranged at the bottoms of the movable bearings in parallel and at intervals in the perpendicular direction, the three connection boards form first sliding cavities and second sliding cavities sequentially from top to bottom, and thread tap clamping devices are arranged on the connection boards. The automatic tapping machine can avoid secondary cutting conducted after thread machining is completed, thereby improving the precision of thread machining.

Description

A kind of automatic tapping machine

Technical field

The utility model relates to a kind of processing equipment, particularly relates to a kind of process equipment for machining internal thread.

Background technology

Tapping is a kind of common machining, adopts traditional-handwork tapping, and on the one hand, it is correct that want workpiece clamp position, make screwed hole center line be placed in horizontal or vertical position as far as possible, makes tapping easily judge that screw tap axis is whether perpendicular to the plane of workpiece; On the other hand, during tapping, every switching strand hand 1/2～1 circle, just should reverse approximately 1/2 circle, makes the cataclasm rear easy discharge of smear metal, and can reduce cutting edge and make the screw tap phenomenon of box-uping because gluing to consider to be worth doing.This makes the operating personnel that require of traditional-handwork tapping have certain technical merit and qualification, otherwise the part quality that not only makes tapping process is defective, and is easy to occur that the phenomenon of fracture appears in screw tap in tapping process.

Because the requirement of traditional-handwork Tapping Technology is high, percent defective is high, production efficiency is low, high in cost of production defect, therefore a kind of lathe that is used for specially screw tap machining internal thread of-tapping machine arises at the historic moment.And the processing mode of automatic tapping machine is normally fixed part to be processed, expose the position that needs tapping, screw tap rotation incision, machining internal thread, stops when arriving certain depth, and processing parts is exited in screw tap reversion, and part machines.The Chinese disclosure of the invention that for example patent No. is ZL201110283836.3 a kind of large-scale nut automatic tapping machine, comprise main body, feeding device, nut limit device, drilling rod and travel control device, it is characterized in that main body is provided with operating table surface, feeding device, nut limit device are placed in operating table surface; Nut limit device is placed on feeding device, and drilling rod is placed on the main body of feeding device top, and travel control device is placed on drilling rod; One side of feeding device has to be attached thereto and connects and promote the air-control device that nut moves horizontally, and its opposite side is equipped with and is attached thereto the automatic recoverer for recovering connecing.Although the fiery type nut automatic tapping machine that this invention obtains, adopt the automatic control program of feeding, location, cleaning, oven dry, can effectively guarantee the tapping degree of accuracy of nut, can meet workpiece clamp position and want correct, the process technology that has reduced operator requires, has improved yield rate and production efficiency, reduced processing cost, but adopt the tapping method of invention, the drilling rod that screw tap is housed needs reversion to exit after the screw thread processing that completes nut, make the screw thread machining again through cutting for the second time, thereby reduced the machining accuracy of screw thread.

Utility model content

The technical problems to be solved in the utility model is the present situation for prior art, thus provide a kind of avoid screw thread to machine after cutting for the second time improve the automatic tapping machine of accuracy of screw machining.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of automatic tapping machine, comprise frame, spacing ejecting device, lifting shaft and the drill jig that is arranged on described lifting shaft end, it is characterized in that: the square guide rail that has been arranged vertically in described frame, on described guide rail, each slides and is provided with screw tap crane, on described screw tap crane, be arranged with two guide rods in parallel, on described guide rod, each slides and is provided with mobile bearing, described mobile bearing bottom vertically spaced and parallel is provided with three connecting plates, described three connecting plates form the first sliding chamber and the second sliding chamber from top to bottom successively, on described connecting plate, be provided with screw tap clamping device, described screw tap clamping device comprises the screw tap cup that applicable screw tap vertically passes, be slidably arranged in the screw tap cup base plate in the described second sliding chamber, be arranged on two movable plates in the first sliding chamber, be fixedly installed the mobile cylinder on a described connecting plate therein, wherein a described movable plate is fixed with a wherein connecting plate that forms the described first sliding chamber, described in another piece, the piston rod of movable plate and described mobile cylinder links together, described screw tap cup symmetry is vertically fixed on respectively the top, end of described two movable plates in two, the position relationship of described screw tap cup base plate and described two movable plates meets: after described two movable plate closures, screw tap can drop on described screw tap cup base plate through the end of screw tap after described screw tap cup.

As improvement, on described connecting plate, be arranged with at least two described screw tap clamping devices in parallel.By a plurality of screw tap clamping devices are set, realize a plurality of screw taps and can process nut, the production efficiency of raising simultaneously.

Improve, two movable plates in the described first sliding chamber are symmetrical arranged again.By being symmetrical arranged, make structure compact and reasonable more.

Improve again, described spacing ejecting device comprise below described lifting shaft and be horizontally set on base plate in described frame, be symmetricly set on nut guide plate on described base plate, be arranged on the nut push rod between symmetrical nut guide plate, on the opposite face of described nut guide plate, symmetry has stopper slot, in described stopper slot, be provided with cylindrical rolling element, the degree of depth of described stopper slot is greater than the radius of described cylindrical rolling element, bottom at described stopper slot has blind hole, and the bottom of described blind hole is provided with the back-moving spring offseting with described cylindrical rolling element.Utilize the hexagonal structure of nut profile, adopt two nut guide plates to add and rotate the free degree man-hour and carry out spacing nut; On nut, expect after the passage between nut guide plate, utilize two cylindrical rolling elements that are arranged symmetrically with along this channel direction, to carry out spacing to nut; After nut machines, by cylinder, drive push rod that nut is carried out to discharging.

Compared with prior art, owing to the utility model has the advantage of: before tapping, screw tap is placed in screw tap cup, by the movement of screw tap crane and mobile bearing, together with screw tap, take screw tap cup to workpiece nut top, screw tap cup base plate exits, screw tap withstands on nut, then lifting shaft declines, and screw tap is inserted in drill jig, and the screw tap cup separation that then symmetry forms is also exited, after moving to the below of base plate, close up, screw tap cup base plate resets simultaneously, makes after nut tap completes, and screw tap falls in screw tap cup and on screw tap cup base plate automatically.The utility model is abandoned passing on the mode that the rear screw tap of screw thread processing exits by reversion, adopts screw tap to turn the mode of wearing nut, thereby has avoided the cutting for the second time of double thread after screw thread machines, and has improved the machining accuracy of screw thread.In addition, screw tap cup adopts the symmetrical mode that is vertically fixed on respectively in two the top, end of described two movable plates, not only can effectively must discharge screw tap cup and stay the iron filings in screw tap cup after long-time use, but also can effectively must clamp screw tap, improve the reliability of tapping machine.

Accompanying drawing explanation

Fig. 1 is the structural representation of the automatic tapping machine tapping first step in the utility model embodiment;

Fig. 2 is the structural representation of automatic tapping machine tapping second step in the utility model embodiment;

Fig. 3 is the structural representation of automatic tapping machine tapping the 3rd step in the utility model embodiment;

Fig. 4 is the structural representation of automatic tapping machine tapping the 4th step in the utility model embodiment;

Fig. 5 is the structural representation of automatic tapping machine tapping the 5th step in the utility model embodiment;

Fig. 6 is the top view of Fig. 5;

Fig. 7 is the structural representation of automatic tapping machine tapping the 6th step in the utility model embodiment;

Fig. 8 is the structural representation of automatic tapping machine tapping the 7th step in the utility model embodiment;

Fig. 9 is the structural representation of automatic tapping machine tapping the 8th step in the utility model embodiment;

Figure 10 is the structural representation of automatic tapping machine tapping the 9th step in the utility model embodiment;

Figure 11 is the structural representation of automatic tapping machine tapping the tenth step in the utility model embodiment;

Figure 12 is the top view of Figure 11;

Figure 13 is the structural representation of automatic tapping machine tapping the 11 step in the utility model embodiment;

Figure 14 is the structural representation of automatic tapping machine tapping the 12 step in the utility model embodiment;

Figure 15 is the structural representation of automatic tapping machine tapping the 13 step in the utility model embodiment;

Figure 16 is the structural representation of spacing ejecting device in the utility model embodiment;

Figure 17 is the partial enlarged drawing at A place in Figure 16.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Fig. 1 to 17, a kind of automatic tapping machine in this enforcement, comprise frame, spacing ejecting device 5, lifting shaft 3 and the drill jig 4 that is arranged on lifting shaft 3 ends, the square six roots of sensation guide rail 1 that has been arranged vertically in frame, on guide rail 1, each slides and is provided with screw tap crane 2, on screw tap crane 2, be arranged with two guide rods 8 in parallel, on guide rod 8, each slides and is provided with mobile bearing 7, mobile bearing 7 bottoms vertically spaced and parallel are provided with three connecting plates 10, three connecting plates 10 form the first sliding chamber 11 and the second sliding chamber 12 from top to bottom successively, on connecting plate 10, be provided with four screw tap clamping devices 6.

Wherein, screw tap clamping device 6 comprises the screw tap cup 63 that applicable screw tap 9 vertically passes, be slidably arranged in the screw tap cup base plate 61 in the second sliding chamber 12, be symmetricly set on two movable plates 62 in the first sliding chamber 11, be fixedly installed the mobile cylinder 64 on a connecting plate 10 therein, wherein a movable plate 62 is fixing with a wherein connecting plate 10 that forms the described first sliding chamber 11, another piece movable plate 62 links together with the piston rod of mobile cylinder 64, screw tap cup 63 symmetries are vertically fixed on respectively the top, end of two movable plates 62 in two, the position relationship of screw tap cup base plate 61 and two movable plates 62 meets: after two movable plate 62 closures, screw tap 9 can drop on screw tap cup base plate 61 through the end of the rear screw tap 9 of screw tap cup 63.

Wherein, spacing ejecting device 5 comprises below lifting shaft 3 and is horizontally set on base plate 51 in frame, is symmetricly set on nut guide plate 52 on base plate 51, is arranged on the nut push rod 53 claiming between nut guide plate 52, on the opposite face of nut guide plate 52, symmetry has stopper slot 54, in stopper slot 54, be provided with cylindrical rolling element 55, the degree of depth of stopper slot 54 is greater than the radius of cylindrical rolling element 55, in the bottom of stopper slot 51, have blind hole 56, the bottom of blind hole 56 is provided with the back-moving spring 57 offseting with cylindrical rolling element 55.

Below the tapping step of automatic tapping machine is described:

Screw tap crane 2 is used for controlling the motion of the vertical direction of screw tap clamping device 6, and mobile bearing 7 is used for controlling 6 horizontal movements of screw tap clamping device.Original state, screw tap crane 2 moves to along guide rail 1 top that screw tap clamping device 6 is positioned at nut guide plate 52 in the vertical direction, and mobile bearing 7 resets simultaneously, makes screw tap clamping device 6 be positioned in the horizontal direction the outside of nut guide plate 52.The first step: screw tap 9 is put into screw tap cup 63, and now screw tap cup base plate 61 is in the state of stretching out, screw tap cup base plate 61 stretches out degree for till can holding the screw tap 9 of putting into screw tap cup 63, as shown in Figure 1; Second step: mobile bearing 7 is protruding along guide rod 8 directions, make screw tap 9 be positioned at lifting shaft 3 under and be positioned at nut directly over, as shown in Figure 2; The 3rd step: screw tap cup base plate 61 is return to screw tap crane 2 directions, as shown in Figure 3; The 4th step: after screw tap cup base plate 61 is return, lifting shaft 3 moves downward, screw tap 9 shanks are inserted in the drill jig 4 that is contained in lifting shaft 3 ends, the end of screw tap 9 and the end contact of nut, wherein, screw tap 9 axis keep vertical with nut end face, as shown in Figure 4; The 5th step: in screw tap clamping device 6, the piston rod that is fixedly installed the mobile cylinder 64 on a connecting plate 10 therein stretches out, the wherein movable plate 62 being connected with piston rod that drive is symmetricly set in the first sliding chamber 11 moves, two original closed movable plates 62 are separated from each other, thereby the symmetrical halves of composition screw tap cup 63 that also makes to be fixed on the top, end of two movable plates 62 is separated, as shown in Figure 5,6; The 6th step: mobile bearing 7 resets, makes screw tap clamping device 6 be positioned in the horizontal direction the outside of nut guide plate 52, as shown in Figure 7; The 7th step: screw tap crane 2 declines along guide rail 1, makes screw tap clamping device 6 be positioned in the vertical direction the below of the base plate 51 of frame, and screw tap cup base plate 61 stretches out simultaneously, as shown in Figure 8; The 8th step: mobile bearing 7 moves and stretches out along guide rod 8, makes screw tap clamping device 6 be positioned in the horizontal direction the below of the base plate 51 of frame, as shown in Figure 9; The 9th step: screw tap crane 2 rises along guide rail 1, screw tap cup 63 in screw tap clamping device 6 is contacted with the bottom surface that is arranged on the base plate 51 in frame, lifting shaft 3 rotations are simultaneously carried out tapping to nut, until the working portion of screw tap 9 is all through nut, as shown in figure 10; The tenth step: in screw tap clamping device 6, the piston rod that is fixedly installed the mobile cylinder 64 on a connecting plate 10 is therein retracted, the wherein movable plate 62 being connected with piston rod that drive is symmetricly set in the first sliding chamber 11 moves, make two movable plates that originally separated 62 mutually closed, thereby the symmetrical halves of composition screw tap cup 63 of top, end that also makes to be fixed on two movable plates 62 is closed mutually, as shown in Figure 11,12; The 11 step: screw tap crane 2 moves down, screw tap 9 drops on screw tap cup base plate 61, as shown in figure 13 through after nut; The 12 step: mobile bearing 7 resets, makes screw tap clamping device 6 be positioned in the horizontal direction the outside of nut guide plate 52, as shown in figure 14; The 13 step: screw tap crane 2 rises, and gets back to original state, as shown in figure 15.

Wherein the operation principle of spacing ejecting device 5 is as follows: when nut push rod 53 is pushed to cylindrical rolling element 55 nut, due to cylindrical rolling element 55, in the situation that back-moving spring 57 opens, some is given prominence to outside stopper slot 54, so time, nut will be fixed between two cylindrical rolling elements 55, now just can carry out tapping to nut, in tapping, nut push rod 53 returns to initial position, and promote next nut to the direction of cylindrical rolling element 55, now, previous nut tapping completes, at this moment, second nut that nut push rod 53 promotes will push away the complete nut of previous tapping forward, enter collection box, between bottom due to the blind hole 56 of cylindrical rolling element 55 and nut guide plate 52, be provided with back-moving spring 57, now, nut push rod 53 will be released cylindrical rolling element 55 places previous nut, back-moving spring 57 resets simultaneously, a rear nut is blocked, reciprocal successively, realize spacing ejaculation function.

Other content that relates to automatic tapping machine in the present embodiment is ordinary skill in the art means.

Claims

1. an automatic tapping machine, comprise frame, spacing ejecting device (5), lifting shaft (3) and the drill jig (4) that is arranged on described lifting shaft (3) end, it is characterized in that: the square guide rail (1) that has been arranged vertically in described frame, upper each of described guide rail (1) slides and is provided with screw tap crane (2), on described screw tap crane (2), be arranged with two guide rods (8) in parallel, upper each of described guide rod (8) slides and is provided with mobile bearing (7), described mobile bearing (7) bottom vertically spaced and parallel is provided with three connecting plates (10), described three connecting plates (10) form the first sliding chamber (11) and the second sliding chamber (12) from top to bottom successively, on described connecting plate (10), be provided with screw tap clamping device (6), described screw tap clamping device (6) comprises the screw tap cup (63) that applicable screw tap (9) vertically passes, be slidably arranged in the screw tap cup base plate (61) in the described second sliding chamber (12), be arranged on two movable plates (62) in the described first sliding chamber (11), be fixedly installed the mobile cylinder (64) on a described connecting plate (10) therein, wherein a described movable plate (62) is fixing with a wherein connecting plate (10) that forms the described first sliding chamber (11), movable plate described in another piece (62) links together with the piston rod of described mobile cylinder (64), described screw tap cup (63) symmetry is vertically fixed on respectively the top, end of described two movable plates (62) in two, described screw tap cup base plate (61) meets with the position relationship of described two movable plates (62): after described two movable plates (62) closure, screw tap (9) can drop on described screw tap cup base plate (61) through the end of screw tap (9) after described screw tap cup (63).

2. automatic tapping machine according to claim 1, is characterized in that: on described connecting plate (10), be arranged with at least two described screw tap clamping devices (6) in parallel.

3. automatic tapping machine according to claim 1, is characterized in that: two movable plates (62) in the described first sliding chamber (11) are symmetrical arranged.

4. according to the automatic tapping machine described in claim 1 or 2 or 3, it is characterized in that: described spacing ejecting device (5) comprises and is positioned at described lifting shaft (3) below and is horizontally set on the base plate (51) in described frame, be symmetricly set on the nut guide plate (52) on described base plate (51), be arranged on the nut push rod (53) between symmetrical nut guide plate (52), on the opposite face of described nut guide plate (52), symmetry has stopper slot (54), in described stopper slot (54), be provided with cylindrical rolling element (55), the degree of depth of described stopper slot (54) is greater than the radius of described cylindrical rolling element (55), in the bottom of described stopper slot (54), have blind hole (56), the bottom of described blind hole (56) is provided with the back-moving spring (57) offseting with described cylindrical rolling element (55).