CN2772680Y

CN2772680Y - Knocking head riveter

Info

Publication number: CN2772680Y
Application number: CN 200420114979
Authority: CN
Inventors: 宣碧华; 强宏昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-29
Filing date: 2004-12-29
Publication date: 2006-04-19
Anticipated expiration: 2014-12-29

Abstract

The utility model relates to a head riveter, particularly a knocking head riveter used for riveting pin shafts of chains, which comprises a power device, an upper machine frame and a lower machine frame, wherein the upper machine frame is provided with an upper machine head, and the lower machine frame is provided with a lower machine head; a knocking mechanism is arranged on the upper machine frame which is provided with a knocking hammer, the knocking hammer is arranged above an upper rivet head and the lower machine frame is provided with a lower rivet head. The utility model adopts a high speed knock way to work, the deformation of knock is very small in each time, therefore riveted joints are smooth and regular, the inner stress is small, and the utility model does not need annealing treatment so as to reduce procedure and to save cost; simultaneously, the utility model has the advantage of good appearance quality.

Description

Beat formula die machine

Technical field

The utility model relates to a kind of die machine, especially relates to a kind of formula of beaing die machine that is used for the riveted chain hinge pin.

Background technology

The riveted of chain bearing pin in making process is one of important procedure, and the difference of the equipment that riveted is selected for use will determine the precision and the presentation quality of chain hinge pin riveted.At present, domestic chain manufacturing firm is generally roll extrusion riveting and punching press riveting to the die of chain, and it realizes the both sides riveting only concerning the roll extrusion riveting, and this riveted joint easily produces the flexural deformation of chain framework; Liquidate and press, this form is the disposable punching press of steel to steel (confronting the tough with toughnees) though it can realize cubic riveting or circle riveted joint finishes, on macroscopic view, presentation quality and riveted joint precision are not very desirable, from microcosmic, because it is disposable punch forming, defectives such as internal stress are pulled, existed to the fiber at its die place.

Summary of the invention

The utility model solves the technical problem that the existing riveted joint precision of prior art is not high, presentation quality is relatively poor, internal stress is bigger, and riveted joint precision height, presentation quality is good, internal stress the is little formula of beaing die machine are provided.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: beat formula die machine, comprise power set, upper spider and lower bearing bracket, upper spider is provided with head, lower bearing bracket is provided with down head and is provided with on upper spider and beats mechanism, beaing mechanism is provided with and beats hammer, this beats the top that hammer is located at die, is provided with die down on lower bearing bracket.

The described mechanism of beaing comprises lever, gripper shoe, beats hammer and eccentric mechanism, the fulcrum of lever is supported by gripper shoe, the right-hand member of lever with beat the hammer link to each other, left end links to each other with eccentric mechanism, power set are installed on the upper spider and are connected with eccentric mechanism.

Also be provided with the rotation reducing gear on the head under described, last die is located on the rotation reducing gear by locking fixture, last die can rotate, describedly beat the top that mechanism is located at head, beat simultaneously and hammer the top that is located at die into shape, described head down comprises die and rough lock machine down, following die is located on the rotation reducing gear by locking fixture, coaxial but the direction of last die and following die in opposite directions, the working end direction that last die contacts with workpiece down, being directed upwardly of the working end that following die contacts with workpiece.

Described head down can move up and down on lower bearing bracket.

The utility model adopts the mode of beaing at a high speed to work, and the deflection that at every turn beats is very little, so the joint of riveted is smooth smooth, and internal stress is little, with regard to not needing to carry out annealing in process, can reduce operation again, saves cost, and presentation quality is good simultaneously.

Description of drawings

Fig. 1 is the schematic diagram of embodiment 1 of the present utility model.

Fig. 2 is the left view of Fig. 1.

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings 1 and accompanying drawing 2, the technical solution of the utility model is described in further detail.

Embodiment 1: beat formula die machine, comprise power set, upper spider 2 and lower bearing bracket 1, upper spider 2 is fixedlyed connected up and down by bolt with lower bearing bracket 1, lower bearing bracket 1 is fixed on the base 11, on upper spider 2, be provided with and beat mechanism and last head, the described mechanism of beaing comprises lever 41, gripper shoe 42, beat hammer 44 and eccentric mechanism 45, the fulcrum of lever 41 is received support by gripper shoe 42, make lever 41 about two arms can swing, the termination of the right arm of lever 41 with beat hammer and 44 be fixedly linked, right arm swings up and down to drive around the fulcrum of gripper shoe and beats hammer 44 and do reciprocally swinging up and down, the termination of the left arm of lever 41 and eccentric mechanism 45 are fixedly linked, power set are installed on the upper spider 2 and provide power for eccentric mechanism 45, drive eccentric mechanism 45 motions, eccentric mechanism 45 mainly contains eccentric shaft, the collar, brake disc, clutch discs and belt pulley are formed, a main motor passes to eccentric shaft by belt pulley through clutch, pass to the left arm of lever through the collar by eccentric shaft, the motion of eccentric mechanism 45 makes the left arm of lever 41 do swing up and down reciprocatingly, beat hammer 44 by the motion principle drive of lever and do reciprocally swinging up and down, the described head of going up comprises die 6 and rotation reducing gear 5, last die 6 is located on the rotation reducing gear 5 by locking fixture, last die 6 can rotate, describedly beat the top that mechanism is located at head, beat the top that hammer 44 is located at die 6 simultaneously, described head down comprises die 8 and rough lock machine 9 down, rough lock machine 9 is to go up die 6 rotations by the variable-frequency motor drive of adjustable-speed, following die 8 is located on the rough lock machine 9 by locking fixture, following die 8 also can rotate, coaxial but the direction of last die 6 and following die 8 in opposite directions, the working end direction that last die 6 contacts with workpiece down, being directed upwardly of the working end that following die 8 contacts with workpiece, the end face that beats of last die 6 and following die 8 is that the triangular shaped product that can pound out is the hemisphere face shape.

During work, with the bearing pin and last die 6 and following die 8 coaxial putting that is enclosed within on the chain, beaing mode that mechanism imitation people strikes hammer by hand can reach 1000 times frequency with the per minute maximum and beat repeatedly, the deflection that at every turn beats is very little, bit by bit beat the needed riveted joint shape and size of the final knock of distortion size, beat mechanism when beaing repeatedly, drive the rotation of going up die 6 and following die 8 self by rotation reducing gear 5 and rough lock machine 9 and reach round simultaneously riveting, the adjusting of beaing the frequency and rotary speed of last die 6 is to rotate outer armful of interior single-block brake of reducing gear 5 and cone friction clutch is finished by being located at.

In addition, promptly according to the requirement of the bearing pin different length of chain, can on lower bearing bracket 1, be provided with lifting motor 10, can drive down head and on lower bearing bracket 1, slide up and down according to the chain of processing different cultivars and specification.

Claims

1, beats formula die machine, comprise power set, upper spider (2) and lower bearing bracket (1), upper spider (2) is provided with head, lower bearing bracket (1) is provided with down head, it is characterized in that: on upper spider (2), be provided with and beat mechanism, beat mechanism and be provided with and beat hammer (44), this beats the top that hammer (44) is located at die (6), is provided with die (8) down on lower bearing bracket (1).

2, the formula die machine that beats according to claim 1, it is characterized in that: the described mechanism of beaing, comprise lever (41), gripper shoe (42), beat hammer (44) and eccentric mechanism (45), the fulcrum of lever (41) is supported by gripper shoe (42), the right-hand member of lever (41) with beat hammer (44) and link to each other, left end links to each other with eccentric mechanism (45), and power set are installed in upper spider (2) and upward are connected with eccentric mechanism (45).

3, the formula die machine that beats according to claim 2, it is characterized in that: also be provided with rotation reducing gear (5) on the described head down, last die (6) is located on the rotation reducing gear (5) by locking fixture, last die (6) can rotate, describedly beat the top that mechanism is located at head, beat hammer (44) simultaneously and be located at the top of die (6), described head down comprises die (8) and rough lock machine (9) down, following die (8) is located on the rotation reducing gear (5) by locking fixture, coaxial but the direction of last die (6) and following die (8) in opposite directions, the working end direction that last die (6) contacts with workpiece down, being directed upwardly of the working end that following die (8) contacts with workpiece.