CN216632322U - Turnover tongue riveting one-time finishing tool - Google Patents

Abstract

A turnover tongue riveting one-time finishing tool belongs to the technical field of clutch processing. The utility model aims to add a pre-pressing and limiting device in the process of riveting a cover turning tongue, a support ring and a diaphragm spring, and adjust the structure of a riveting tool to complete the turning tongue riveting one-time completion tool for one-time turning tongue riveting. The positioning device comprises an upper template, a lower template and a positioning pin, wherein an upper fixing plate is fixedly arranged on the upper template through a screw, an upper positioning block is fixedly arranged on the upper fixing plate through a screw, central holes are formed in the upper template, the upper fixing plate and the middle part of the upper positioning block, the upper center is positioned and inserted in the central hole, and a positioning disc is sleeved on a positioning disc guide bolt; the lower template is fixedly provided with a lower fixing plate, the centers of the lower template and the lower fixing plate are provided with lower central holes, and a lower central positioning part is inserted in the lower central holes. The utility model eliminates the main problem of deformation of the product, improves the primary qualified rate, reduces the process and lowers the manufacturing cost of the tool.

Description

Turnover tongue riveting one-time finishing tool

Technical Field

The utility model belongs to the technical field of clutch processing.

Background

In the process of riveting the diaphragm spring by the clutch cover assembly, in the process of turning the cover tongue, 15 tongues of the cover need to be turned together to be in a state of being tightly riveted with one diaphragm spring of the two support rings. The current situation can not realize riveting the diaphragm spring support ring and the cover together at one time, the assembly riveting can be completed only by two procedures, and the cover tongue is turned to 45 degrees for prepressing deformation in the first riveting. And (3) turning the cover tongue to 125 degrees by riveting for the second time, and enabling the cover tongue, the two support rings and the diaphragm spring to be in a tightly riveted state. The part deformation is caused by twice repeated positioning riveting, the performance requirement of a product assembly is influenced, and meanwhile, the appearance has obvious indentation, the labor intensity of an operator in the process is high, the working efficiency is low, the one-time qualification rate of the product is low, and the manpower and material resources are wasted.

Disclosure of Invention

The utility model aims to add a pre-pressing and limiting device in the process of riveting a cover turning tongue, a support ring and a diaphragm spring, and adjust the structure of a riveting tool to complete the turning tongue riveting one-time completion tool for one-time turning tongue riveting.

The utility model comprises an upper template, a lower template and a positioning pin, wherein an upper fixing plate is fixedly arranged on the upper template through a screw, an upper positioning block is fixedly arranged on the upper fixing plate through a screw, central holes are formed in the upper template, the upper fixing plate and the middle part of the upper positioning block, an upper center is positioned and inserted in the central hole, an upper positioning cap positioned at the upper center is fixed in an upper template groove on the upper template through a screw, a positioning plate guide bolt is fixedly arranged on the upper positioning block, the positioning plate is sleeved on the positioning plate guide bolt, the positioning plate is limited by a nut at the top end of a guide bolt of the positioning plate, a center shaft of the positioning plate is inserted in the center hole, an elastic pre-pressing spring is arranged between the positioning disc and the upper positioning block, a positioning sleeve is sleeved outside the positioning disc and the upper positioning block, the positioning sleeve and an upper fixing plate are simultaneously installed on the upper template through bolts, a guide sleeve is installed outside the upper fixing plate and the positioning sleeve, and the guide sleeve is matched with the guide pillar; a punch is installed at the position of the positioning disc corresponding to the turnover tongue of the workpiece, the lower end of the punch is a vertical guide pillar, the front surface of the vertical guide pillar, which is in contact with the workpiece, is a vertical extrusion area, the upper surface of the vertical extrusion area is a bending return area, and the bending return area is smoothly butted with a lower bending slope surface area on the positioning disc; the lower template is fixedly provided with a lower fixing plate, the centers of the lower template and the lower fixing plate are provided with lower center holes, lower center positioning is inserted in the lower center holes, a lower positioning cap for the lower center positioning fixes the lower positioning seat on the lower fixing plate through a bolt, and an annular base at the upper end of the lower positioning seat corresponds to the bottom end of the workpiece riveting support ring.

The riveting device ensures that the cover assembly is not deformed and the surface indentation of the assembly is eliminated in the riveting process, improves the working efficiency, reduces the labor intensity of operators, reduces the rejection rate, optimizes the riveting process of the cover sub-assembly, can optimize the riveting process aiming at the cover tongue turning structure, transversely expands, can simultaneously realize multiple series of products, eliminates the main problem of deformation of the product, improves the primary qualification rate, reduces the process and reduces the tool manufacturing cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A of the present invention;

FIG. 3 is a schematic view of the connecting part of the positioning plate, the punch and the vertical guide pillar according to the present invention.

Detailed Description

The utility model comprises an upper template 1, a lower template 17 and a positioning pin 13, wherein an upper fixing plate 3 is fixedly arranged on the upper template 1 through a screw, an upper positioning block 5 is fixedly arranged on the upper fixing plate 3 through a screw, the middle parts of the upper template 1, the upper fixing plate 3 and the upper positioning block 5 are provided with a central hole 10, an upper central positioning 9 is inserted in the central hole 10, an upper positioning cap 8 of the upper central positioning 9 is fixed in an upper template slot 7 on the upper template 1 through a screw, a positioning disc guiding bolt 27 is fixedly arranged on the upper positioning block 5, a positioning disc 11 is sleeved on the positioning disc guiding bolt 27 and limited through a nut at the top end of the positioning disc guiding bolt 27, a positioning disc 11 is inserted in the central hole 10, an elastic pre-pressing spring 6 is arranged between the positioning disc 11 and the upper positioning block 5, a positioning sleeve 4 is sleeved outside the positioning disc 11 and the upper positioning block 5, the positioning sleeve 4 is simultaneously arranged on the upper template 1 through the upper fixing plate 3 and the screw, a guide sleeve 2 is arranged outside the upper fixing plate 3 and the positioning sleeve 4, and the guide sleeve 2 is matched with the guide pillar 12; a punch 21 is installed at the positioning disc 11 corresponding to the tongue turning part of the workpiece 20, the lower end of the punch 21 is provided with a vertical guide pillar 23, the surface of the front of the vertical guide pillar 23, which is in contact with the workpiece 20, is a vertical extrusion area 26, the surface above the vertical extrusion area 26 is a bending return area 25, and the bending return area 25 is in smooth butt joint with a lower bending slope surface area 24 on the positioning disc 11; a lower fixing plate 18 is fixedly installed on the lower template 17, a lower central hole 16 is formed in the centers of the lower template 17 and the lower fixing plate 18, a lower central positioning 15 is inserted into the lower central hole 16, a lower positioning cap 14 of the lower central positioning 15 fixes a lower positioning seat 19 on the lower fixing plate 18 through a bolt, and an annular base 28 at the upper end of the lower positioning seat 19 corresponds to the bottom end of a workpiece 20 riveted with a support ring 22.

The utility model rivets the cover and the supporting ring diaphragm spring at one time and can realize the tongue turning riveting tool for one-time riveting continuous operation.

The one-time finishing tool for riveting the turnover tongue is divided into an upper tool body and a lower tool body:

the upper tool body comprises an upper template, an upper fixing plate, a central positioning shaft, a screw, a guide sleeve, a positioning block, a screw, a punch, a discharging screw, a pre-compression spring and a positioning disc.

The lower frock body includes: the lower die plate, the lower fixing plate, the positioning seat, the positioning pin, the screw, the lower center positioning, the guide pillar and the limiting pillar.

The upper template is provided with the two guide sleeves, the lower template is provided with the two guide pillars, the riveting tool is driven to be arranged at the corresponding positions of the riveting mechanism and the lower riveting mechanism by the operation of the slide block of the device, and when the guide sleeves are contacted with the guide pillars, the internal structural members of the tool can normally complete the riveting of the cover, the support ring and the diaphragm spring.

An upper fixing plate and a central positioning mandrel are arranged on the upper template, and are connected with a positioning block, a positioning sleeve, a pre-compression spring and a positioning disc through bolts, and the positions correspond to the riveting positions of workpieces. The riveting tool is elastically pre-pressed, in a working state, the upper tool runs downwards along a guide pillar to move a positioning sleeve to contact with a disc area position of a diaphragm spring firstly, and continues to run downwards, the positioning sleeve presses the disc area of the diaphragm spring to be in a flat state, meanwhile, a positioning block is pressed to the effective working stroke of the spring, the spring pushes the positioning disc to drive a punch to continue to run downwards until a punch R contacts with a flip tongue position, the flip tongue position deforms along with the shape of the punch through an angle R, the cover and a support ring are riveted with the diaphragm spring, the stroke of an upper tool body is limited by a limit column, one-time riveting completion of the flip tongue of the cover is realized, the upper tool body is lifted, and an operator takes out a part.

The upper die plate is provided with two guide sleeves, the upper center is positioned and placed in the position of the counter bore of the upper die plate, the upper fixing plate is connected through bolts, the position of the through hole of the upper fixing plate corresponds to the position of the bolt hole of the upper die plate, the center hole of the upper fixing plate is positioned and matched with the upper center, the positioning block is connected through bolts and is arranged, the punch is matched and arranged with the positioning disc according to the position, the central positioning part is matched and arranged with the positioning block, the pre-compression spring is arranged, the position of the counter bore of the positioning sleeve is aligned with the position of the bolt hole of the upper die plate, and the positioning sleeve is connected and fastened through bolts to form an upper tool body.

Two guide pillars are installed on the lower template, the counter bore position of the lower fixing plate corresponds to the bolt hole position of the lower template and is fastened through bolts, the positioning seat is placed in the central counter bore position of the lower fixing plate, the lower center is positioned and installed in the central hole position, and the lower guide pillars are fastened through bolts. The locating pin is installed on the lower fixing plate according to the position, and two spacing posts are installed on the lower template to form a lower tool body.

The utility model mainly rivets the turning tongue at an angle of 45 degrees in one process and rivets the turning tongue at an angle of 125 degrees in two processes of the existing tool for turning the tongue, optimizes the process to realize the one-time completion of the tool for riveting the turning tongue, and designs the one-time forming riveting tool by adding a pre-compression spring at the position of a positioning sleeve, combining a positioning disc and an upper punch, riveting two support rings and a diaphragm spring at the position of the turning tongue 15 according to the one-time forming angle of 125 degrees of the turning tongue, and riveting a tight state.

Claims (1)

1. The utility model provides a turn over tongue riveting and once only accomplish frock, includes cope match-plate pattern (1), lower bolster (17), locating pin (13), its characterized in that: an upper fixing plate (3) is fixedly arranged on an upper template (1) through screws, an upper positioning block (5) is fixedly arranged on the upper fixing plate (3) through screws, a central hole (10) is formed in the middle of the upper template (1), the upper fixing plate (3) and the upper positioning block (5), an upper central positioning block (9) is inserted into the central hole (10), an upper positioning cap (8) of the upper central positioning block (9) is fixed in an upper template slot (7) in the upper template (1) through screws, a positioning disc guiding bolt (27) is fixedly arranged on the upper positioning block (5), a positioning disc (11) is sleeved on the positioning disc guiding bolt (27) and limited through a nut at the top end of the positioning disc guiding bolt (27), a central shaft of the positioning disc (11) is inserted into the central hole (10), a pre-pressing spring (6) is arranged between the positioning disc (11) and the upper positioning block (5), a positioning sleeve (4) is sleeved outside the positioning disc (11) and the upper positioning block (5), the positioning sleeve (4) and the upper fixing plate (3) are simultaneously arranged on the upper template (1) through bolts, a guide sleeve (2) is arranged outside the upper fixing plate (3) and the positioning sleeve (4), and the guide sleeve (2) is matched with the guide pillar (12); a punch (21) is installed at a positioning disc (11) corresponding to the tongue turning part of a workpiece (20), a vertical guide post (23) is arranged at the lower end of the punch (21), the front surface of the vertical guide post (23) is in contact with the workpiece (20) and is a vertical extrusion area (26), the surface above the vertical extrusion area (26) is a bending return area (25), and the bending return area (25) is in smooth butt joint with a lower bending slope surface area (24) on the positioning disc (11); a lower fixing plate (18) is fixedly mounted on a lower template (17), a lower central hole (16) is formed in the centers of the lower template (17) and the lower fixing plate (18), a lower central positioning cap (15) is inserted in the lower central hole (16), a lower positioning seat (19) is fixed on the lower fixing plate (18) through a bolt by a lower positioning cap (14) of the lower central positioning cap (15), and an annular base (28) at the upper end of the lower positioning seat (19) corresponds to the bottom end of a workpiece (20) in a riveting mode and supports a ring (22).

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