CN2149266Y

CN2149266Y - Semi-automatic tapping screws

Info

Publication number: CN2149266Y
Application number: CN 93202795
Authority: CN
Inventors: 谢瑞生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-16
Filing date: 1993-02-16
Publication date: 1993-12-15
Anticipated expiration: 2003-02-16

Abstract

The utility model discloses a semiautomatic threading machine with double-station sides, which is the screw thread threading device used to process the pipe fittings of the union, etc. The cooling water tank and the switch cabinet are formed in the integration and arranged on the lower part of the lathe bed, two threading cutter frames are arranged on the left and right sides of the worktable, the hold-down mechanism is arranged on the upper part of the worktable and is the cam rocker mechanism. Driven by the electric push rod, the gear-box in the speed changing changeover mechanism is rotated by the dragging of the motor; the rotating is converted into the reasonable cutting speed, the positive and negative rotating through the gears and transferred to the threading cutter frame through the two chain wheels. The continuous automatic processing actions of the clamping and threading are realized. The utility model has the advantages of small size, light weight and convenient operation.

Description

Semi-automatic tapping screws

The utility model relates to a kind of pipe fitting tapping machine, is to be specifically designed to " articulation " that pipeline is used, the thread processing equipment of pipe fittings such as " nuts ".

At the plumbing pipe of building industry, in the installation of gas, equipment for liquid transportation and the construction, the pipe fitting consumption is quite big in the industrial production, and " articulation " the crucial connector that is absolutely necessary.Disclosed tapping machine in the prior art, only be applicable to tapping to three links, " elbow " and " inside and outside joint ", as if the effort of just taking a lot of work with its processing one start screw such as " articulations ", and work efficiency is low, particularly novel required same footpath, the reducing nut of quick-acting pipe spare occupies significant proportion in product at present, but mostly relies on repacking of ordinary lathe to process this series products now, and work efficiency is low, labour intensity is big, wastes energy again and material.

The purpose of this utility model is to provide a kind of double semi-automatic tapping machine that is used for processing pipe fittings such as " articulations ", and has overcome the defective of prior art.

The purpose of this utility model realizes in the following manner.Lathe bed is designed to cooling water tank and electric control cabinet is the lathe bed of one, they constitute the bottom of lathe bed, gearbox is contained in the lathe bed upper back, two tapping knife rests are installed in the left and right both sides above the workbench, hold-down mechanism is installed in the top of two tapping knife rests, drag the gearbox rotation by the motor in the speed change changement, change rational cutting speed and forward and backward into through gear rotation, by two cover sprocket wheels, pass to the tapping knife rest, realize clamping, tapping, the cover processing action automatically continuously of returning.

Hold-down mechanism is taked cam link mechanism, is operated by the motor drives electric pushrod.

For the ease of blanking with do not influence operation, table design is provided with material road in the middle of their on cooling water tank, and material has screen cloth under the road.

Cooling water tank is and is horizontally placed on the preceding bottom of lathe bed, and electric control cabinet places the right lateral side of lathe bed, and the framework lathe bed is hollow " fourth " font support.

What accompanying drawing 1 provided is structural representation of the present utility model.

Fig. 2 is a speed change commutation structure structural scheme of mechanism.

Fig. 3, Fig. 4 are the schematic diagrames of hold-down mechanism.

The embodiment that provides below in conjunction with accompanying drawing and accompanying drawing further describes the utility model.

With reference to Fig. 1, lathe bed 10 comprises the cooling water tank 12 of preceding bottom, the cooling device of cooling water tank 12 during as the machine tooling product, motor 1 is installed in the lathe bed bottom in the left side, rear portion, and the right side, rear portion is an electric control cabinet 9, whole lathe bed becomes frame-type, the preceding bottom of lathe bed is horizontal, then the framework lathe bed is that hollow forms " fourth " font support, not only alleviate lathe bed weight but also strengthened the rigidity of lathe bed, dwindled the lathe volume, and the center of gravity that cooling fluid has increased the bottom is filled in the lathe bottom, make lathe firm, because cooling water tank places workbench 8 bottoms, processed workpiece skids off the lathe outside by following material road, the material road is located between water tank and the workbench, and do not influence operation, when workpiece skids off the material road, cooling fluid flows back in the cooling water tank 12 immediately, two tapping knife rests 7 are installed in the left side above the workbench 8, right both sides, hold-down mechanism 5 is taked cam link mechanism, drive it by the motor drives push rod, hold-down mechanism 5 is installed in the top of two tapping knife rests, has both realized compressing respectively of two workpiece, has increased by two tapping knife rests being rigidly connected on workbench again, make it firm, therefore, the tapping knife rest 7, electric pushrod 6 synthetic one group of overall package parts of realizing the tapping process operation of hold-down mechanism 5 and manipulation hold-down mechanism, and be installed in the fuselage front upper part.

Speed change changement as shown in Figure 2, gearbox 3 drags by motor, the cunning that belt pulley through its left side drives on the electromagnetic clutch 16 that makes I axle left side is closed gear driven II shaft gear 20,21 and III shaft gear 23, at this moment can obtain the slow-speed of revolution with the workpiece more than the processing diameter 40mm, if move the gear change hand lever 4(accompanying drawing 1 on gearbox top), the gear 23 of III axle and 24 engagements of the gear of II axle then obtain high rotational speed, so that the processing diameter can be increased work efficiency less than the workpiece of 40mm.

When the electromagnetic clutch a in left side energising, pass through the minor sprocket 24,26 at III axle two ends as described above, the tapping tool spindle in hinge wheel 25,27 left sides that drags the tapping knife rest by chain is at leading screw 2(such as Fig. 1) advance under the effect, workpiece is processed, and the tapping tool spindle on right side retreats the disengaging workpiece along the screw on the leading screw under the effect of leading screw.

When the electromagnetic clutch a in left side outage, the gear 19,21,22 and the III shaft gear 23 of right side electromagnetic clutch b energising driven gear 17, idle wheel 18 and II axle, make the minor sprocket 24,26 of both sides drag hinge wheel 25,27, realize at gearbox under the effect of counter-rotating, the right side main shaft of tapping knife rest advances along the screw on the screw mandrel, and tapping main shaft in left side is return the disengaging workpiece along screw, thereby has realized that a left side is advanced, " double " processing action of Slow astern starboard series no-idle running.

The process of each workpiece, except that electromagnetic clutch 16 and the series of gears engagement formation positive and negative direction rotation of left and right tapping knife rest by gearbox body inside reaches the continuous realization process, the mechanism that also needs workpiece pressing is from movingly the workpiece in the process being clamped.As Fig. 3, hold-down mechanism is realized by electric pushrod D actuating cam linkage, when electric pushrod D advances, left side connecting rod A rises, right side connecting rod B descends, realize the right side Work-sheet pressing, as Fig. 4, D retreats when electric pushrod, left side connecting rod A descends, compress the left side workpiece, right side connecting rod B rises and to loosen right side processed workpiece, form and arranged on left and right sides respectively according to the advancing of tapping knife rest, return when making tapping and compress, loosen the continuous coordination process of a cover after returning.

Realize that all automatic fabrication cycles is to realize by auxiliary reclay in the electric control cabinet on lathe bed right side and travel control switch mechanically.

Fall into the material road of workbench bottom after each workpiece processing, material has pore on the road, and screen cloth is equipped with in the bottom, and workpiece slides into outside the machine along the material road, and cooling fluid is returned cooling water tank through screen cloth.

At the lathe bed front end action button is housed, directly controls the starting of motor and stop, and link to each other, can realize automatic and manual two-way choice with each travel switch.

The obtained technological progress of the utility model is: it realizes efficient, the energy-conservation and convenient processing to " articulation " workpiece, this device volume is little, in light weight, maintenance and easy to use, its comparable engine lathe raising work efficiency twice, and power only is the 3KW motor, because no reciprocal idle stroke, conservation of power greatly, cumulative volume is long 730mm, wide 700mm, high 1000mm, complete machine manufacturing consumption steel are few, maximum machining diameter can reach 50mm, and complete machine is rigidly connected and is one, and ground is not had strict demand, thereby convenient for users.

Description of drawings of the present utility model is as follows:

1, motor 2, leading screw 3, gearbox 4, gear change hand lever 5, hold-down mechanism 6, electric pushrod 7, tapping knife rest 8, workbench 9, electric control cabinet 10, lathe bed 11, control button station 12, cooling water tank 13, electrical machine belt pulley 14, gearbox belt wheel 15, gear 16, electromagnetic clutch 17, gear 18, idle wheel 19, gear 20, gear 21, gear 22, gear 23, gear 24, minor sprocket 25, hinge wheel 26, minor sprocket 27, hinge wheel

Claims

1, a kind of double semi-automatic tapping machine, comprise lathe bed, the tapping knife rest, power distribution cabinet and cooling water tank, it is characterized in that cooling water tank 12, electric control cabinet 9 is an one, constitute the bottom of lathe bed, gearbox 3 is contained in the lathe bed upper back, two tapping knife rests 7 are installed in the left side above the workbench 8, right both sides, hold-down mechanism 5 is installed in the top of tapping knife rest 7, motor drags gearbox 3 rotations in the speed change changement, changing rational cutting speed into by the gear rotation in the gearbox 3 is just reaching, counter-rotating by two cover sprocket wheels, passes to the tapping knife rest, realize clamping tapping, the one cover processing action automatically continuously of returning.

2, by the described semi-automatic tapping machine of claim 1, it is characterized in that said speed change changement is by the motor driving shaft I, pass to the II axle by electromagnetic clutch 16 driven gears 15,17 through idle wheel 18, gear 19,20,21,22 on the II axle, rotating speed is passed to the III axle, gear 23 is arranged in the middle of the III axle, two ends are provided with minor sprocket 24,26, they link to each other with hinge wheel 25,27 respectively, reasonably rotating speed is passed to leading screw and tapping knife rest at last through hinge wheel 25,27, and the electromagnetic clutch 16 on the I axle is two of a, b.

3,, it is characterized in that said hold-down mechanism 5 is cam rocker arm mechanism, is driven by electric pushrod 6 by the described semi-automatic tapping machine of claim 1.

4, by claim 1 or 2 described semi-automatic tapping machines, it is characterized in that workbench 8 below, the top of cooling water tank 12 is provided with the material road.

5, by claim 1 or 2 described semi-automatic tapping machines, it is characterized in that the preceding bottom of cooling water tank 12 at lathe bed, be horizontal, electric control cabinet 9 places the right lateral side of lathe bed, and the framework lathe bed is hollow " fourth " font support.