CN2327495Y - Seven-step punching machine for thin wall cup like elongated metal casings - Google Patents

Abstract

The utility model relates to a seven-step punching machine for making thin wall cup like elongated metal casings by means of cold-extruding and continuous drawing by bar stock. The utility model is provided with seven work positions. The seven processes of cold-extruding calyx generation, position extension for one to four times, bottom shaping, and opening extruding can be simultaneously completed. Meanwhile, an automatic conveying workpiece mechanism composed of a cam, an up and down moving mechanism, a horizontal moving mechanism, a feeding clamp, etc. is also arranged. The automatic, continuous and precise transfer of workpieces of the work processes of the seven-step punching machine can be realized. By utilizing the seven-step punching machine, the material utilization of the casing production is enhanced from 60% or so to over 90%. The production efficiency can be enhanced over four times. The utility model has the advantages of cost reduction and labor intensity reduction.

Description

A kind of seven punch presses of making thin wall type cup-shaped long and thin metal shell

The utility model relates to Can manufacturing technology field, particularly makes the process equipment of thin wall type cup-shaped long and thin metal shell with bar cold-extruded, drawing process.

Making thin-walled cup-shaped slender metal pipe shell at present all adopts band material or the stretching of sheet metal blanking blanking to form.Its major defect one is that stock utilization is low, generally have only about 60%, reason is that the stamping and blanking of band material or plate exists scrap (bridge) waste material (partly being the scrap (bridge) waste material as beating hatching among Fig. 4), the 2nd, and production efficiency is low, because need through repeatedly stretching to processing finished product from stamping and blanking, the bottom shaping, squeeze all multiple operation such as mouth, the per pass operation needs to operate with a forcing press, and the centre also needs through repeatedly heat treatment, production cycle is long, so efficient is low.

The purpose of this utility model provides a kind of stock utilization height, production efficiency is high uses the bar cold-extruded, seven punch presses of continuously elongated manufacturing thin wall type cup-shaped long and thin metal shell, on single device, can carry out cold-extruded, stretch for four times, the bottom squeeze moulding is squeezed mouth etc. and the bar blank is processed into the shell finished product.

The utility model is achieved in that on crankshaft press pattern punch press to be provided with and can carries out cold-extruded simultaneously and become broad-mouthed receptacle for holding liquid, one-off drawing, succeeding stretch, stretch for three times, stretch for four times, the bottom shaping, squeeze seven stations and the automatic conveying work pieces device that workpiece on each station can be sent to automatically next station of manufacturing procedure such as mouth, finish cold-extruded on the single device continuously to be implemented in, repeatedly stretch, the bottom shaping is squeezed seven procedures such as mouth, thereby the bar blank is processed into thin wall type cup-shaped long and thin metal shell finished product.Wherein, on the bent axle 4 of lathe, adorn a connecting rod 5, connecting rod 5 connects together bent axle 4 and the slide block 7 that can make horizontal reciprocating movement in guide rail 6, be equipped with on the slide block 7 respectively and seven corresponding drifts 8 of seven stations on the lathe bed 23, also be provided with on the lathe bed 23 and comprise Lifting Device, discharging device, pay-off and transmission mechanism thereof etc. are the mechanism of conveying work pieces automatically.

Operation principle of the present utility model is: when motor 1 drove bent axle 4 rotations by the transmission speed reducer structure, bent axle 4 also drove slide block 7 by connecting rod 5 and make horizontal reciprocating movement in guide rail 6.When slide block 7 is drawn back, seven drifts 8 on the slide block 7 also retreat with slide block 7, material jacking mechanism ejects workpiece from die holder 11, unloading mechanism is about to workpiece and scrapes off and stay the feed mechanism from drift 8, next station delivered to workpiece by feed mechanism under the effect of transmission mechanism, after workpiece was delivered to next station, feed mechanism returned to the origin-location under the effect of transmission mechanism, prepared again workpiece to be delivered to next station.Therefore, for seven punch presses, it can carry out the processing of seven procedures simultaneously, for some workpiece, it from first station step by step through just being processed to required Can behind seven stations from a bar blank.According to different requirements, as long as adjust die holder 11 on each station of conversion, it is 6-10mm that these seven punch presses just can be finished diameter, and length is the continuous processing of the shell of the different size below the 85mm.

The utlity model has significant advantage and technological progress:

1, save material, available bar pier coarse wool embryo has been eliminated band material or sheet metal blanking blanking and the scrap (bridge) waste material that forms, stock utilization is reached more than 90%, so greatly reduce cost.

2, minimizing equipment shortens production line, is only tapered to by seven equipment of original seven procedures and can finish seven procedures with an equipment.

3, shortened the production cycle, enhanced productivity more than 4 times.

4, the die holder on seven stations can be adjusted conversion mutually, and can finish diameter is 6-10mm, the shell production of the different scales model that length 85mm is following.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the utility model essential structure schematic top plan view

Fig. 2 is that I-I of Fig. 1 is to side sectional structure schematic diagram

Fig. 3 is the structural representation of automatic conveying work pieces mechanism

Fig. 4 is the scrap (bridge) waste material (dash area) of band material or sheet metal blanking blanking

Fig. 5 bar cold-extruded drawing process embodiment

1, motor 2, belt pulley 2 ', belt 3, belt pulley 3 ', power transmission shaft 4, bent axle 5, connecting rod 6, guide rail

7, slide block 8, drift 9, scrape die holder 10, workpiece feeding folder 11, die holder 12, ejection block 13, cam 14, cam 15, helical gear 16, helical gear 17, camshaft 18, distributing shaft 19, gear 20, gear 21, gear 22, gear 23, lathe bed 24, ejector beam 25, scrape mould 26, cam 27, fork 28, fork 29, adjustment part 30, pull bar 31, slide block 32, slide block 33, spring 34, adjustment part a, bar blank b, blank jumping-up c, cold-extruded becomes broad-mouthed receptacle for holding liquid d, one to four stretching e, bottom squeeze moulding f, squeeze mouth.

Embodiment:

Present embodiment is a horizontal crankshaft forcing press pattern punch press, 20 tons of nominal pressures, and rotating speed is 50 rev/mins, stroke 220mm, closed height 380mm, its motor 1 drives bent axle 4 by belt pulley 2 and 3, gear 22 and 21 double reduction transmission mechanisms; Bent axle 4 drives slide block 7 by connecting rod 5 and make horizontal reciprocating movement in guide rail 6; Slide block 7 is provided with seven drifts, and lathe bed 23 is provided with seven stations, and each station is provided with a die holder 11; Seven drifts are corresponding with seven die holders respectively.Be provided with between drift 8 and the slide block 7 and can make drift 8 make the fine setting screw rod 27 that front and back are adjusted; On the lathe bed 23 Lifting Device is set, it comprises distributing shaft 18, helical gear 15,16, camshaft 17, cam 26, ejector beam 24, ejection block 12 etc., wherein distributing shaft 18 is installed in the axis hole of gear 20, gear 20 and gear 19 engagements, and gear 19 is contained in the end of bent axle 4, bent axle 4 rotations, driven gear 19,20 rotates, and gear 19,20 drives distributing shaft 18 rotations, and distributing shaft 18 drives helical gear 15,16 again and rotates, helical gear 15,16 is drive cam shaft 17 and cam 26 rotations again, and the lifting curved surface pulling ejector beam 24 and the ejection block 12 of liftout cam 26 are carried out liftout.Automatically conveying work pieces mechanism comprises reciprocating mechanism and horizontal mobile mechanism and workpiece feeding folder 10, wherein reciprocating mechanism comprises cam 14, fork 28, slide block 31, adjustment part 34, horizontal mobile mechanism comprise cam 13, fork 27, pull bar 30, slide block 32, adjustment part 29.Figure 3 shows that the initial position of automatic conveying work pieces mechanism, when drift 8 retreats along with slide block 7, workpiece is ejected from die holder 11 by ejection block 12 or scrapes by scraping mould 25, workpiece is stayed in the workpiece feeding folder 10, at this moment, cam 13 makes slide block 32 move horizontally with workpiece feeding folder 10 to the right by fork 27, and workpiece is delivered to next station; When drift 8 advances work with slide block 7, cam 14 moves down slide block 31, slide block 32, workpiece feeding folder 10 by fork 28, after workpiece feeding folder 10 breaks away from drift 8, slide block 32 changes to the left movement return by the curved surface of cam 13, and slide block 31 changes by cam 14 curved surfaces slide block 32, feeding folder 10 are moved to initial position on together then.The feed distance of this feed mechanism and feed entrance point precision can be adjusted by adjustment part 29,34, and the clamping of workpiece is finished automatically by feeding folder 10; It by about two folders forms, be hinged on the slide block 32 with screw axis respectively, each feeding is pressed from both sides all to be under the effect of spring 33 and is closed the tong-like attitude, when workpiece withdraws from, drift 8 forces the feeding folder to open the clamping connection workpiece, and after drift 8 withdrawed from, workpiece was clamped by feeding folder 10 and is sent to next station.

Claims (6)

1, a kind of seven punch presses of making thin wall type cup-shaped long and thin metal shell, comprise motor (1), the double reduction transmission mechanism that belt pulley (2) and (3) and gear (22) and (21) constitute, the lathe bed (23) of bent axle type forcing press, it is characterized in that: a connecting rod (5) is housed on its bent axle (4), connecting rod (5) connects together bent axle (4) and slide block (7), be equipped with on the slide block (7) respectively and corresponding seven drifts (8) of seven stations on the lathe bed (23), being docile and obedient preface on these seven stations is respectively equipped with and is squeezed into broad-mouthed receptacle for holding liquid, stretch for one to four time, the bottom shaping, squeeze seven die holders (11) that can adjust conversion mutually such as mouth, also be provided with on its lathe bed (23) and comprise Lifting Device, discharging device, pay-off and transmission mechanism etc. are finished the mechanism of continuously elongated and automatic conveying work pieces.

2, seven punch presses according to claim 1 is characterized in that slide block (7) is installed in to make in its guide rail that can make horizontal reciprocating movement (6), are provided with the fine setting screw rod (27) that drift (8) is adjusted before and after doing between drift (8) and the slide block (7).

3, seven punch presses according to claim 1, the Lifting Device that it is characterized in that its automatic conveying work pieces mechanism is by distributing shaft (18), helical gear (15,16), liftout camshaft (17), liftout cam (26), ejector beam (24), ejection block formations such as (12), wherein distributing shaft (18) is installed in the axis hole of gear (20), gear (20) and gear (19) engagement, gear (19) is contained in the end of bent axle (4), and discharging device constitutes by scraping die holder (9) and scraping mould (25).

4, seven punch presses according to claim 1, the pay-off that it is characterized in that its automatic conveying work pieces mechanism comprises and moves up and down cam (14) and fork (28), moves up and down slide block (31), move horizontally cam (13) and fork (27), pull bar (30), move horizontally slide block (32), workpiece feeding folder (10).

5, according to claim 1 and 4 described seven punch presses, it is characterized in that between fork (27) and pull bar (30), being provided with the adjustment part (29) of adjusting feed distance, at fork (28) with move up and down the adjustment part (34) that is provided with adjustment feeding position precision between the slide block (31).

6, according to claim 1 and 4 described seven punch presses, it is characterized in that feeding folder (10) by about two folders forms, be hinged on screw axis respectively and move horizontally on the slide block (32), all be provided with on each feeding is pressed from both sides and make it be in the spring (33) that closes the tong-like attitude.

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