CN209998278U

CN209998278U - improved hole enlarging and punching die punch

Info

Publication number: CN209998278U
Application number: CN201920513463.6U
Authority: CN
Inventors: 李静; 杜立伟; 何春晖
Original assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Current assignee: Qinhuangdao Dicastal Xionglong Wheels Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-01-31
Anticipated expiration: 2029-04-16

Abstract

improved punch of reaming and punching die is composed of connecting rod body, length adjusting slot, locating circular truncated cone, fixed screw, movable head body, locating slot, supporting table, step hole and connecting bolt, and features that the front section of connecting rod body is equipped with circular truncated cone step structure, central part is equipped with screw holes, front end vertical surface of connecting rod body is symmetrically equipped with three groups of rectangular groove structures, each group has two grooves, length of three groups is not and has 4-6mm difference, central part of side of movable head body, which is not punch surface, is equipped with circular grooves , end surface is symmetrically equipped with two rectangular bosses, central part of side of punch surface is equipped with stepped holes, circular truncated cone of connecting rod is inserted into circular groove of movable head, rectangular boss of movable head is inserted into group of grooves, and finally connecting rod and movable head are fixed on punch through connecting bolt.

Description

improved hole enlarging and punching die punch

Technical Field

The utility model belongs to forge wheel hub mould and make the field, relate to kinds of modified reaming cut-out press drift.

Background

Forged aluminum alloy wheel hub belongs to the high-end product among the wheel hub, and its mechanical properties is excellent, light in weight, and the molding is various, and the outward appearance is big pleasing to the eye, has accorded with the trend of automobile wheel hub development, and the demand in market increases year by year.

The key process of manufacturing the forged wheel comprises a forging process, a hole expanding and punching process and a spinning process, wherein the hole expanding and punching process is to use a die to process a forged blank, the blank is prepared for the spinning process, the hole expanding and punching die is used as which is an important tool in the production process of forging the wheel hub, a punching part of the hole expanding and punching die mainly comprises an upper die holder, a pressing block, a punching head, a female die, a lower die and the like, and the punching head is arranged in a central hole of the pressing block and fixed on the upper die holder.

In the forging process, the forging process is influenced by a plurality of factors, the forged blank is not completely compared with a drawing, the process adjustment is frequently carried out manually in the reaming and punching process to meet the requirements of the subsequent spinning process, the difference between the blank and the drawing is aggravated by steps, the length of an originally designed punch is short, the punch is long and easy to clamp, the punch cannot punch any material, and the punching effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an kind of modified reaming cut-out press drift, this drift need not lift the mould off from the press and change, but directly change on the press of installing the mould.

The technical scheme of the utility model is that improved reaming and punching die punches, by the tie rod body, the length adjustment groove, the location round platform, the fixed thread, the activity head body, the constant head tank, a supporting platform, the step hole, the tie bolt is constituteed, set up round platform rank structure at the tie rod body anterior segment, set up screw hole in the central point, set up three group rectangle groove structure at tie rod body front end facade symmetry, two in every group, three group's recess length is not and is caused the difference 4-6mm, set up circular recess in the side central point that the activity head body is not the punch face, set up two rectangle bosss in the terminal surface position symmetry, set up bench step hole in the side central point of punch face, insert the round platform of connecting rod in the circular recess in the activity head, the rectangle boss of activity head inserts group recess, connecting rod and activity head pass through connecting bolt and fix plays finally.

The utility model discloses simple structure, this drift can be in the production process length of adjustment drift, need not lift the mould off from the press, opens the mould and changes, has avoided production process to be forced to break, causes the extravagant phenomenon of cost of production to take place.

Drawings

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

FIG. 2 is a front view of the connecting rod structure;

FIG. 3 is a left side view of the connecting rod arrangement;

FIG. 4 is a front view of the movable head structure;

fig. 5 is a left side view of the movable head structure.

In the figure: 1. a connecting rod body; 2. a length adjustment groove; 3. positioning the circular truncated cone; 4. Fixing threads; 5. a movable head body; 6. positioning a groove; 7. a support table; 8. a stepped bore; 9. a connecting bolt; 10. briquetting; 11. an upper die holder.

Detailed Description

As shown in fig. 1, 2, 3, 4 and 5, improved reaming and punching die punches are composed of a connecting rod body 1, a length adjusting groove 2, a positioning circular truncated cone 3, a fixed thread 4, a movable head body 5, a positioning groove 6, a supporting table 7, step holes 8 and connecting bolts 9, wherein a circular truncated cone step structure is arranged at the front section of the connecting rod body 1, threaded holes are arranged at the central part, three groups of rectangular groove structures are symmetrically arranged at the front end vertical surface of the connecting rod body 1, the length of each group is two, the length of each group is not , the difference is 4-6mm, circular grooves are arranged at the central part of the side of the movable head body 5, which is not the punch surface, two rectangular bosses are symmetrically arranged at the end surface part, step holes are arranged at the central position of the side of the punch surface, the circular truncated cone of the connecting rod body 1 is inserted into the circular grooves in the movable head body 5, the rectangular bosses of the movable head body 5 are inserted into groups of length adjusting grooves, and finally the connecting rod body 1 and the movable.

In the production process, the original installation position of the support table 7 on the movable head body 5 is groups with the middle length in three groups of grooves in the length adjusting groove 2, when the punch is not proper in length, the punch of the original structure is installed in the center hole of the pressing block 10 and connected with the upper die base 11, the punch cannot be directly replaced, but the new punch can correspondingly adjust the length, firstly, the connecting bolt 9 is screwed off, the movable head body 5 is taken down, then, groups with the longest length or the shortest length in the three groups of the length adjusting groove 2 are selected according to requirements, the support table 7 is aligned to the group selected in the length adjusting groove 2, the positioning circular table 3 is matched with the positioning groove 6, the movable head body 5 is inserted into the connecting rod body 1, and finally, the connecting bolt 9 is screwed to complete the punch replacement.

Claims

The improved punch of reaming and punching die consists of connecting rod body, length regulating slot, locating circular truncated cone, fixing screw, movable head body, locating slot, support bench, stepped hole and connecting bolt, and features that the front section of the connecting rod body is provided with circular truncated cone step structure, screw holes in the central part, three sets of rectangular notch structures in the front end of the connecting rod body, two sets of notches in each set with length not and difference of 4-6mm, the movable head body has side central parts with circular notches and two rectangular bosses in the end, the punch has side central parts with stepped holes , the circular truncated cone of the connecting rod is inserted into the circular notch in the movable head, the movable head has rectangular bosses inserted into sets of notches, and the connecting rod and the movable head are fixed via connecting bolt to .