CN2429321Y

CN2429321Y - Hand press

Info

Publication number: CN2429321Y
Application number: CN00213775U
Authority: CN
Inventors: 孙旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-21
Filing date: 2000-03-21
Publication date: 2001-05-09
Anticipated expiration: 2010-03-21

Abstract

The utility model discloses a hand press. The device uses a structure that a unidirectional rotating bearing keeps interference fit with a planetary gear, a point B and a point E of an overran disk are provided with recesses, and teeth of one side of a fixing gear are cut away. Therefore, the utility model has the advantages of lowering labor strength, improving work efficiency, production stability and uniformity of the product, etc.

Description

A kind of hand is pulled forcing press

The utility model relates to the forcing press mechanical field, particularly relates to a kind of hand and pulls forcing press.

Existing hand is pulled the simple in structure of forcing press, handle can not guarantee constant pressure in whole stroke in the process of pressing down, handle all can reset being depressed into any position handle, in the operations such as therefore assembling, blanking, stamping-out, cutting, flange, riveted joint, disadvantages such as it is not high to have machining accuracy, and labour intensity is big.

The purpose of this utility model is to provide a kind of hand laborsaving, working stability to pull forcing press.

For achieving the above object, the utility model adopts a kind of hand that has locking device to pull forcing press, the surpassed distance dish is positioned at the external sidewall of blower casing, fixed gear is positioned at the surpassed distance dish outside, the surpassed distance dish, fixed gear is by being bolted on the tank wall, the pressure arbor passes the surpassed distance dish, fixed gear tail end and cursor one end are fastening, the cursor other end and swing arm one end connect by little rotating shaft gap, the swing arm other end and planetary gear pass through sliding shaft sleeve, the one-directional rotation bearing is bound up, sliding axle is arranged in sliding shaft sleeve, between sliding shaft sleeve and the sliding axle spring is arranged, one-directional rotation bearing and planetary gear interference fit, surpassed distance dish B point, the E point has groove, and the tooth of fixed gear one side is cut off.

Therefore the utility model has advantages such as labour intensity, the stability of increasing work efficiency, improve production and the uniformity of reduction owing to adopt the forcing press locking device.

Fig. 1 looks partial sectional view for master of the present utility model.

Fig. 2 looks partial sectional view for a left side of the present utility model.

Pulling forcing press with the pinion and-rack hand is that example is described in detail.

A kind of rack-and-pinion hand that has locking device is pulled forcing press, by handle 11, sliding shoe 12, tooth bar 13, pressure arbor 7, case 14, stroke lever 10, guide pillar 9, support 8, torsion spring 1, sliding shaft sleeve 2, primary nut 3, spring 4, one-directional rotation bearing 5, sliding axle 6, planetary gear 15, swing arm 16, little rotating shaft 17, cursor 18, fixed gear 19, surpassed distance dish 20 constitutes, handle 11 and pressure arbor 7 are connected by key, pressure arbor 7 and tooth bar 13 engagements, blower casing 14 is connected with support 8 by guide rail, sliding shoe 12 tightens together with tooth bar 13, surpassed distance dish 20 is positioned at blower casing 14 external sidewalls, the surpassed distance disk material is a structural carbon steel, the surpassed distance dish is processed into flanged disk, fixed gear 19 is positioned at surpassed distance dish 20 outsides, surpassed distance dish 20, fixed gear 19 is by being bolted on blower casing 14 walls, pressure arbor 7 passes surpassed distance dish 20, fixed gear 19 tail ends and cursor 18 1 ends are fastening by screw, cursor is processed into shaft-like, cursor 18 other ends and swing arm 16 1 ends connect by little rotating shaft 17 gaps, swing arm is processed into circular-arc, swing arm 16 other ends and planetary gear 15 are by sliding shaft sleeve 2, one-directional rotation bearing 5 is bound up, sliding axle 6 is arranged in sliding shaft sleeve 2, between sliding shaft sleeve 2 and the sliding axle 6 spring 4 is arranged, slip rolling bearing 5 and planetary gear 15 interference fit, surpassed distance dish 20B point, the E point has groove, the tooth of fixed gear 19 1 sides is cut off, the material of support and blower casing adopts cast iron, and remaining part all adopts structural carbon steel.

When the handle 11 of forcing press presses down, pressure arbor 7 presses down with handle 11 and rotates, the rotating band carry-over bar 13 of pressure arbor 7 presses down, driving cursor 18 simultaneously rotates, after sliding axle 6 is by C point process B point, sliding axle 6 is positioned at surpassed distance dish 20 flange inner, planetary gear 15 and fixed gear 19 engagements, because one-directional rotation bearing 5 can not reverse, cause pressure arbor 7 not reverse, forcing press handle 11 can not automatically reset, locking device is in self-locking state, when forcing press handle 11 continues to be depressed into the summit, this moment, sliding axle 6 moved to the E point, under the gravity effect, swing arm 16 and cursor 18 produce small angle oscillation around little rotating shaft 17, sliding axle 6 jumps to surpassed distance dish 20 flange outer sides and returns the B point by the E point, this moment, planetary gear 15 and fixed gear 19 were thrown off fully, not self-locking, after getting back to the B point, planetary gear 15 and swing arm 16 make sliding axle 6 get back to surpassed distance dish 20 flange inner again under the gravity effect, and the tooth owing to fixed gear 19 on this position is cut off, therefore sliding axle 6 can move to the C point always, and this moment, forcing press resetted fully.If because the cause specific of workpiece can't press down forcing press, promptly little rotating shaft 6 can't move to the E point, can spur primary nut 3 compression springs 4 this moment, make sliding axle 6 jump to surpassed distance dish 20 flange outer sides, just forcing press can reset.

Claims

1, a kind of hand is pulled forcing press, it is characterized in that surpassed distance dish (20) is positioned at the external sidewall of blower casing (14), fixed gear (19) is positioned at surpassed distance dish (20) outside, surpassed distance dish (20), fixed gear (19) is by being bolted on blower casing (14) wall, pressure arbor (7) passes surpassed distance dish (20), fixed gear (19) tail end and cursor (18) one ends are fastening, cursor (18) other end and swing arm (16) one ends connect by little rotating shaft (17) gap, swing arm (16) other end and planetary gear (15) are by sliding shaft sleeve (2), one-directional rotation bearing (5) is bound up, sliding axle (6) is arranged in sliding shaft sleeve (2), between sliding shaft sleeve (2) and the sliding axle (6) spring (4) is arranged, one-directional rotation bearing (5) and planetary gear (15) interference fit, surpassed distance dish (20) B point, the E point has groove, and the tooth of fixed gear (19) one sides is cut off.