CN210817008U

CN210817008U - Reverse formula cut-out press

Info

Publication number: CN210817008U
Application number: CN201921547620.1U
Authority: CN
Inventors: 李国方; 李九旺
Original assignee: Heshan Xieli Machinery Co ltd
Current assignee: Heshan Xieli Machinery Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-23
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a reverse punching die, relate to punching equipment technical field, including lower mould subassembly, upper die assembly and guiding mechanism, lower mould subassembly includes first template and the second template that reciprocates the complex each other, first template is equipped with the drift, the second template is equipped with the punching hole with drift complex, upper die assembly includes the punching block with drift complex, upper die assembly makes the punching block reciprocate through guiding mechanism and acts on lower mould subassembly thereby realize reverse punching, the condition that the punching face of work piece takes place to fluctuate has been avoided, the aesthetic measure of work piece punching face has been improved, and the burr of punching process generates in installation face one side, can get rid of in reaming processing, save the burr removal process, machining efficiency has been improved; the elastic mechanism is clamped between the first template and the second template and is provided with a positioning column and a positioning hole matched sliding structure, and the guide mechanism comprises a guide column, a guide sleeve and an elastic piece, so that the stability and the processing precision of reverse punching are improved.

Description

Reverse formula cut-out press

Technical Field

The utility model relates to a punching equipment technical field, in particular to reverse formula cut-out press.

Background

In the production and manufacture of the escalator, the installation surface of a part of an outer frame workpiece in the escalator needs to be punched, and the installation surface needs to be reamed after punching; the traditional punching equipment can form a concave-convex undulating surface on a punching surface, so that the attractiveness of a workpiece is influenced; but also the burr on one side of the reverse side of the stamping surface needs to be removed, and the processing difficulty is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving at least one of the technical problems existing in the prior art, and the utility model aims at providing a reverse punching die, which avoids the condition that the punching surface of a workpiece fluctuates and improves the aesthetic degree of the punching surface of the workpiece; and the burr of punching process is produced in installation face one side, can get rid of when reaming processing, has saved the deburring process, has improved machining efficiency.

The technical scheme adopted for solving the technical problems is as follows:

a reverse-acting punching die, comprising:

the lower die assembly comprises a lower die plate, a first die plate and a second die plate matched with the first die plate in a vertically moving mode, a punching needle is arranged at one forward end of the first die plate in an upward mode, and a punching hole is formed in the second die plate in a matched mode with the punching needle; an elastic mechanism is clamped between the first template and the second template, the first template is provided with at least two positioning columns at intervals along the circumferential direction, and the second template is provided with positioning holes corresponding to the positioning columns one to one;

the upper die assembly comprises an upper die plate and a punching block arranged below the upper die plate, a through hole is formed in the position, corresponding to the punching hole, of the punching block, the diameter of the through hole is larger than that of the punching hole and is coaxial with the punching hole, and the through hole extends upwards to penetrate through the upper die plate so as to be communicated with the upper surface of the upper die plate;

the guide mechanism is used for guiding the upper template to move up and down relative to the lower template, and comprises guide posts arranged on the left side and the right side of the lower template respectively, guide sleeves penetrating through the upper template and sleeved on the guide posts in a sliding manner, and elastic pieces clamped between the guide sleeves and the lower template.

Preferably, the guide mechanism further comprises a sliding sleeve, the sliding sleeve is in sliding fit between the guide sleeve and the guide post, the sliding sleeve comprises a sliding sleeve frame and balls installed in the sliding sleeve frame, and a plurality of sliding sleeve holes which are arranged in an array and used for containing the balls are formed in the sliding sleeve frame.

Preferably, the sliding frame is made of brass.

Preferably, the upper die assembly further comprises an auxiliary block, and the auxiliary block is arranged below the upper die plate and symmetrically arranged with the stamping block in front and back.

Preferably, the elastic member is a spring.

The embodiment of the utility model provides a one or more technical scheme has following beneficial effect at least: compared with the prior art, the embodiment of the utility model provides a reverse formula cut-out press, adopt the mould structure including lower mould subassembly, go up mould subassembly and guiding mechanism, lower mould subassembly is including reciprocal first template and the second template of reciprocating fit, first template is equipped with the punching needle, the second template is equipped with the punching hole with punching needle complex, go up the mould subassembly including being provided with the punching block with punching hole complex, it makes the punching block reciprocate and act on lower mould subassembly through guiding mechanism to realize reverse punching hole to go up the mould subassembly, the condition that the punching surface of work piece takes place to fluctuate has been avoided, the aesthetic measure of work piece punching surface has been improved, and the burr of punching process generates in installation face one side, can get rid of in reaming processing, the burr removal process has been saved, machining efficiency has been improved; the elastic mechanism is clamped between the first template and the second template and is provided with a positioning column and a positioning hole matched sliding structure, and the guide mechanism comprises a guide column, a guide sleeve and an elastic piece, so that the stability and the machining precision of reverse punching are improved.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic structural view of an embodiment of a reverse punching die of the present invention;

fig. 2 is a partial sectional view from the right perspective of fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the utility model discloses a reverse formula cut-out press of embodiment includes:

the lower die assembly 100, the lower die assembly 100 includes a lower die plate 110, a first die plate 120 and a second die plate 130 matched with the first die plate 120 up and down, a punching needle 121 is arranged at the forward end of the first die plate 120, and a punching hole 131 is arranged at the second die plate 130 matched with the punching needle 121; an elastic mechanism 140 is clamped between the first template 120 and the second template 130, the first template 120 is provided with at least two positioning pillars 122 at intervals along the circumferential direction, and the second template 130 is provided with positioning holes 132 corresponding to the positioning pillars 122 one to one; specifically, the elastic mechanism 140 is a spring, two ends of the spring are respectively connected to the center of the first template 120 and the center of the second template 130, and the positioning columns 122 and the positioning holes 132 are respectively arranged around the circumference of the first template 120, so as to ensure accurate matching of the punching pins 121 and the punching holes 131, and improve the stability and the processing precision of punching;

the upper die assembly 200 comprises an upper die plate 210 and a punching block 220 arranged below the upper die plate 210, a through hole 221 is formed in the position, corresponding to the punching hole 131, of the punching block 220, the diameter of the through hole 221 is slightly larger than that of the punching hole 131 and is coaxial with the punching hole 131, the through hole 221 extends upwards to penetrate through the upper die plate 210 so as to be communicated with the upper surface of the upper die plate 210, and waste scraps generated after the punching of the punching block 220 downwards can be upwards discharged to the upper surface of the upper die plate 210 through the through hole 221;

the guide mechanism 300 is used for guiding the upper die plate 210 to move up and down relative to the lower die plate 110, the guide mechanism 300 comprises guide posts 310 respectively arranged on the left side and the right side of the lower die plate 110, guide sleeves 320 penetrating through the upper die plate 210 and slidably sleeved on the guide posts 310, and elastic pieces 330 clamped between the guide sleeves 320 and the lower die plate 110, specifically, the elastic pieces 330 are springs, the guide mechanism 300 is stable in structure, stable up and down movement of the upper die plate 210 can be guaranteed, and the guide precision is high.

In the reverse punching die of the embodiment, the upper die assembly 200 enables the punching block 220 to move up and down through the guide mechanism 300 and act on the lower die assembly 100 so as to realize reverse punching, the condition that the punching surface of a workpiece is fluctuated is avoided, the attractiveness of the punching surface of the workpiece is improved, the burr generated in punching processing is generated on one side of the mounting surface, the burr can be removed in reaming processing, the burr removing process is omitted, and the processing efficiency is improved; an elastic mechanism 140 is interposed between the first mold plate 120 and the second mold plate 130, and has a sliding structure in which the positioning post 122 is matched with the positioning hole 132, and the guide mechanism 300 includes a structure of the guide post 310, the guide sleeve 320 and the elastic member 330, so that the stability and the processing precision of the reverse punching are improved.

Referring to fig. 2, in some embodiments, the guiding mechanism 300 further includes a sliding sleeve 340, the sliding sleeve 340 is slidably fitted between the guiding sleeve 320 and the guiding column 310, the sliding sleeve 340 includes a sliding sleeve frame 341 and balls 342 mounted in the sliding sleeve frame 341, a plurality of sliding sleeve holes 343 arranged in an array and configured to receive the balls 342 are formed in the sliding sleeve frame 341, and friction force generated when the guiding sleeve 320 and the guiding column 310 slide with the sliding sleeve 340 is reduced. Specifically, when the upper die plate 210 moves downward, the guide sleeve 320 slides on the sliding sleeve 340 first, so that the stamping block 220 stably reaches the second die plate 130, and when the guide sleeve 320 reaches the position limit of the sliding sleeve 340, the guide sleeve 320 and the guide post 310 synchronously slide downward, so that the stamping block 220 stamps downward, the stamping efficiency is improved, and the stamping stability is further improved. Preferably, the sliding sleeve frame 341 is made of brass material, so that the sliding sleeve frame has better wear resistance and longer service life.

In some embodiments, the upper die assembly 200 further includes an auxiliary block 230, and the auxiliary block 230 is disposed below the upper die plate 210 and is symmetrically disposed with the punching block 220 in front and back directions, so that the upper die plate 210 is more balanced when moving, the punching process is more stable, and the punching accuracy is higher.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. A reverse-direction punching die, comprising:

2. A counter-rotating punch die according to claim 1, wherein: the guide mechanism further comprises a sliding sleeve, the sliding sleeve is in sliding fit between the guide sleeve and the guide column, the sliding sleeve comprises a sliding sleeve frame and balls arranged in the sliding sleeve frame, and a plurality of sliding sleeve holes which are arranged in an array and used for containing the balls are formed in the sliding sleeve frame.

3. A counter-rotating punch die according to claim 2, wherein: the sliding sleeve frame is made of brass materials.

4. A counter-rotating punch die according to claim 1, wherein: the upper die assembly further comprises an auxiliary block, and the auxiliary block is arranged below the upper die plate and symmetrically arranged in the front-back direction of the punching block.

5. A counter-rotating punch die according to claim 1, wherein: the elastic piece is a spring.