CN202263884U

CN202263884U - Pier nose riveting technological equipment

Info

Publication number: CN202263884U
Application number: CN2011203309682U
Authority: CN
Inventors: 杨踊; 周勇; 孙淑铎
Original assignee: Shenyang Liming Aero Engine Group Co Ltd
Current assignee: Shenyang Liming Aero Engine Group Co Ltd
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2012-06-06
Anticipated expiration: 2021-09-05

Abstract

Pier nose riveting technological equipment belongs to the technical field of engineering plastic forming in material processing, and can effectively control the plastic deformation of a pin shaft during rocker component riveting and enable the diameter precision of the pin shaft to meet the design requirements. The pier nose riveting technological equipment comprises a die carrier provided with an upper die plate and a lower die plate, the lower die plate is connected with a female die bearing plate through a bearing plate, the female die bearing plate is connected with a female die fixing plate, through-holes are formed in the centers of the bearing plate, the lower die plate, the female die bearing plate, and the female die fixing plate, a prop rod and a prop-out pin are arranged in the through-holes from the top to bottom sequentially, a female die with a through-hole in the center is arranged in the through-hole of the female die fixing plate, the upper end of the prop-out pin is arranged in the through-hole of the female die, a male die is arranged above the female die, and the male die is connected with the upper die plate through a male die bearing plate. The equipment is characterized in that the female die adopts a segmented structure, and the male die is provided with a clasping hole corresponding to the guiding part of the female die.

Description

Pier nose riveting process equipment

Technical field

The utility model belongs to Materials Processing Engineering plastic forming technology field, particularly relates to a kind of pier nose riveting process equipment.

Background technology

Existing riveted joint mould does not have the measure of banking pin shaft diameter, exists rocker arm assembly riveted joint rear pin shaft diameter to become big problem always.At present, grind the measure of processing bearing pin cylindrical after factory takes to rivet again, guarantee the diameter dimension tolerance of bearing pin.But because the structure and the size restrictions of part, the rocking arm set component is difficult to clamping and centering; Mill processing bearing pin cylindrical inefficiency, and because clamping is unreliable, the phenomenon that the mill processing excircles causes part to be scrapped usually appears.

The utility model content

Pin diameter to the existence of tradition riveted joint mould riveted joint rocker arm assembly operation becomes big, needs to grind the problem of processing the bearing pin cylindrical again after the riveted joint, and the utility model provides a kind of pier nose riveting process equipment.The plastic deformation of bearing pin in the time of can controlling the rocker arm assembly riveted joint effectively through this equipment makes the diameter precision of riveted joint rear pin shaft directly reach designing requirement.

To achieve these goals; The utility model adopts following technical scheme, a kind of pier nose riveting process equipment, comprise have cope match-plate pattern, the mould bases of lower bolster; Said lower bolster is connected with the die backing plate through backing plate, and said die backing plate is connected with die block; The center of said backing plate, lower bolster, die backing plate and die block all has through hole; In said through hole, be disposed with push rod, knock pin from the bottom to top; In the through hole of said die block, be provided with the die that the center has through hole; The upper end of said knock pin is arranged in the through hole of die, above die, is provided with punch, and punch is connected with cope match-plate pattern through convex mould pad; Be characterized in that said die is the split-type structure, said punch has and the corresponding hole of holding tightly of the targeting part of die.

Said die is divided into two lobes.

Said die block is provided with the supplemental support piece.

Because die receives fretting wear bigger, in order to improve the service life of die, its material is selected carbide alloy YG20.

The beneficial effect of the utility model:

Because the die of the utility model is the split-type structure; Punch has and the corresponding hole of holding tightly of the targeting part of die; Just can control the mushrooming deformation of rivet bearing pin when rocking arm is riveted effectively; Can reach the diameter requirement of riveted joint rear pin shaft, the pin diameter that has solved the existence of traditional riveted joint mould riveted joint rocking arm operation becomes big, needs to grind the problem of processing the bearing pin cylindrical again after the riveted joint.Enhance productivity tens times, owing to design of part and size restrictions, the mill of the unreliable generation of parts fixation is processed the phenomenon that bearing pin causes part to be scrapped easily before having avoided simultaneously.

Description of drawings

Fig. 1 is the structural representation of the pier nose riveting process equipment of the utility model;

Fig. 2 is the vertical view of Fig. 1;

Among the figure, 1-through hole, 2-lower bolster, 3-mould bases, 4-push rod, 5-backing plate; 6-die backing plate, 7-die, 8-die block, 9-knock pin, 10-bearing pin, 11-supplemental support piece; The 12-punch, 13-holds the hole tightly, 14-convex mould pad, 15-cope match-plate pattern, 16-targeting part, 17-distinguish line.

The specific embodiment

As shown in Figure 1, a kind of pier nose riveting process equipment, comprise have cope match-plate pattern 15, the mould bases 3 of lower bolster 2, said lower bolster 2 is connected with die backing plate 6 through backing plate 5, said die backing plate 6 is connected with die block 8; The center of said backing plate 5, lower bolster 2, die backing plate 6 and die block 8 all has through hole 1; In said through hole 1, be disposed with push rod 4, knock pin 9 from the bottom to top; In the through hole 1 of said die block 8, be provided with the die 7 that the center has through hole; The upper end of said knock pin 9 is arranged in the through hole of die 7, above die 7, is provided with punch 12, and punch 12 is connected with cope match-plate pattern 15 through convex mould pad 14; Said die 7 is the split-type structure, and said punch 12 has the targeting part 16 corresponding holes 13 of holding tightly with die 7.Said die 7 is divided into two lobes, and its distinguish line 17 is parallel, as shown in Figure 2 with two guide pillar lines, and said die block 8 is provided with supplemental support piece 11.Because die 7 receives fretting wear bigger, in order to improve the service life of die 7, its material is selected high rigidity, wear-resisting carbide alloy YG20.

Said die 7 is the split-type structure; Make its except possess when riveted joint locating element and the effect as the thick plastic deformation of manufactured head pier; Play simultaneously when riveted joint and can hold bearing pin 10 reliably tightly, transmit rivet force, make bearing pin 10 not produce the chap distortion by the power of holding tightly.Can to effectively utilize die 7 before bearing pin 10 mushrooming deformations and hold bearing pin 10 tightly in order to be implemented in, punch 12 is designed with the targeting part 16 corresponding holes 13 of holding tightly with die 7; Through holding the diameter of hole 13 restriction dies, 7 targeting parts 16 tightly; Punch 12 is held the external diameter minim gap precision-fit of the internal diameter and die 7 targeting parts 16 in hole 13 tightly; Utilize one section conical surface on punch 12 and the die 7 that the targeting part 16 of die 7 is imported holding tightly in the hole 13 of punch 12, thereby make die 7 tightly hold bearing pin 10 tightly.Said mould bases 3 adopts the standard die set of the two guide pillar guide pin bushings of band rear side, and in order to guarantee the design accuracy requirement, said die 7 adopts rough turn processing back to cut the processing technology of accurate combination again.The effect of push rod 4 and knock pin 9 is smoothly part to be ejected in die 7 after the riveted joint.

A course of action below in conjunction with description of drawings the utility model:

The pier nose riveting process of the utility model equipment is installed on 100 tons of common four-column universal hydraulic presses, with the clamping cap of hydraulic press with on the cope match-plate pattern 15 of the utility model, the last lower platform that lower bolster 2 is fixed to hydraulic press.Start hydraulic press, the last masterplate 15 up technological equipments of opening the utility model are put into the through hole of die 7 with rocking arm to be riveted and bearing pin 10, and support with supplemental support piece 11.Then, cope match-plate pattern 15 is along with the hydraulic press upper mounting plate is descending, through one section conical surface on the punch 12 targeting part 16 of die 7 imported holding tightly in the hole 13 of punch 12, makes die 7 tightly hold bearing pin to be riveted 10 tightly.Cope match-plate pattern 15 continues descending, makes manufactured head produce plastic deformation, and manufactured head is shaped.The upper mounting plate of hydraulic press drives the cope match-plate pattern 15 up technological equipments of opening the utility model then, utilizes the following hydraulic cylinder of hydraulic press to promote push rod 4, knock pin 9, and the rocker arm assembly of accomplishing riveted joint is ejected in die 7, accomplishes the process of once riveting.

Claims

1. pier nose riveting process equipment, comprise have cope match-plate pattern, the mould bases of lower bolster, said lower bolster is connected with the die backing plate through backing plate, said die backing plate is connected with die block; The center of said backing plate, lower bolster, die backing plate and die block all has through hole; In said through hole, be disposed with push rod, knock pin from the bottom to top; In the through hole of said die block, be provided with the die that the center has through hole; The upper end of said knock pin is arranged in the through hole of die, above die, is provided with punch, and punch is connected with cope match-plate pattern through convex mould pad; It is characterized in that said die is the split-type structure, said punch has and the corresponding hole of holding tightly of the targeting part of die.

2. a kind of pier nose riveting process equipment according to claim 1 is characterized in that said die is divided into two lobes.

3. a kind of pier nose riveting process equipment according to claim 1 is characterized in that said die block is provided with the supplemental support piece.

4. a kind of pier nose riveting process equipment according to claim 1 is characterized in that said die material selection carbide alloy YG20.