阅读说明：本技术 一种工件侧冲孔方法 (Workpiece side punching method ) 是由 夏胜文 王爱群 叶炎明 石景中 郑荣平 于 2021-10-15 设计创作，主要内容包括：本发明公开了工件侧冲孔方法,涉及到冲压模具技术领域,该方法包括以下步骤：步骤一、配置冲孔设备；步骤二、冲孔设备上电；步骤三、开始冲孔；步骤四、退刀。本申请的工件侧冲孔方法,采用竖直向下的作用力方式完成工件的侧冲孔任务,规避了现有技术中由于模具内部空间有限导致的侧冲孔效果差及施工难度高的问题,提高了工件的加工效率和质量。(The invention discloses a workpiece side punching method, which relates to the technical field of punching dies and comprises the following steps: step one, configuring punching equipment; step two, electrifying the punching equipment; step three, punching is started; and step four, retracting the cutter. According to the workpiece side punching method, the side punching task of the workpiece is completed by adopting a vertical downward acting force mode, the problems of poor side punching effect and high construction difficulty caused by limited inner space of the die in the prior art are solved, and the processing efficiency and the quality of the workpiece are improved.)

1. A workpiece side punching method is characterized in that: the method comprises the following steps:

step one, configuring punching equipment: the punching equipment comprises an upper die (1), a lower die (2), a pressure core (3) and a pair of punching heads (4), wherein the upper die (1) and the lower die (2) are matched with each other, the pressure core (3) is arranged at the bottom of the upper die (1), the pair of punching heads (4) are slidably arranged at the bottom of the upper die (1), the outer part of the pressure core (3) is sleeved with a guide block (5), the arrangement height from the top of the pair of punching heads (4) to the ground is lower than the arrangement height from the top of the guide block (5) to the ground, and an accommodating cavity is formed in the upper die (1) above the guide block (5); the length of the pressure core (3) is greater than that of the guide block (5), guide surfaces (51) which are obliquely and downwardly arranged are arranged on two sides of the guide block (5), the two guide surfaces (51) are arranged in a flaring shape from top to bottom, the side walls of a pair of punching heads (4) are respectively abutted against one guide surface (51), and holes matched with the pressure core (3) are formed in the lower die (2);

step two, electrifying the punching equipment: electrifying the punching equipment, moving the upper die (1) towards the lower die (2), and enabling the guide block (5) to be abutted against the top surface of the lower die (2) and then fixed;

step three, punching is started: the upper die (1) moves downwards continuously, the lower part of the pressure core (3) penetrates into a hole in the lower die (2), the upper part of the guide block (5) moves towards the accommodating cavity, the side walls of a pair of punching heads (4) slide at the bottom of the upper die (1) under the guide of the guide surface (51), and side punching is carried out on a workpiece in the continuous downward movement of the pressure core (3);

and step four, retracting the cutter.

2. The workpiece side punching method according to claim 1, characterized in that: the bottom of going up mould (1) is installed slide rail (6), the top of piercing press head (4) install with slide rail (6) matched with slider (7).

3. The workpiece side punching method according to claim 2, characterized in that: the punching head is characterized in that a baffle (8) is mounted at the end part of one side, far away from the guide block (5), of the sliding rail (6), the baffle (8) is connected with the two ends of a compression spring (9) on the opposite side of the sliding block (7) respectively, and when the punching head (4) moves downwards, the compression spring (9) compresses.

4. The workpiece side punching method according to claim 3, characterized in that: the tool retracting mechanism is characterized in that the tool retracting mechanism specifically comprises an upper die (1) which moves upwards and drives a pressure core (3) to move upwards, and a punching head (4) resets along a guide surface (51) under the action of elastic force of a compression spring (9).

5. The workpiece side punching method according to claim 3, characterized in that: the compression spring (9) is sleeved on the telescopic rod (10), and two ends of the telescopic rod (10) are respectively fixed with the baffle (8) and the opposite side of the sliding block (7).

6. The workpiece side punching method according to claim 1, characterized in that: the guide surface (51) is a sliding groove, and the side wall of the punching head (4) is in sliding fit with the sliding groove.

7. The workpiece side punching method according to claim 1, characterized in that: the bottom of the upper die (1) is provided with a plurality of die closing positioning columns (11), and the lower die (2) is provided with die closing positioning holes corresponding to the positioning columns (11).

Technical Field

The invention relates to the technical field of stamping dies, in particular to a workpiece side punching method.

Background

The traditional punching die is generally suitable for a machining process of straight punching, for a workpiece needing side punching in the middle, the inner space is limited after the die is closed, and a side punching cutter cannot accurately run to realize side punching, so that the workpiece needs to be secondarily machined to realize the side punching process, and the production efficiency is reduced.

Disclosure of Invention

The application aims to provide a workpiece side punching method, which realizes a process of finishing straight punching and side punching of a workpiece at one time and improves the processing efficiency and quality.

In order to achieve the above purpose, the present application provides the following technical solutions: a method of side punching a workpiece, the method comprising the steps of:

step one, configuring punching equipment: the punching equipment comprises an upper die, a lower die, a pressure core and a pair of punching heads, wherein the upper die and the lower die are matched with each other, the pressure core is arranged at the bottom of the upper die, the pair of punching heads is slidably arranged at the bottom of the upper die, a guide block is sleeved outside the pressure core, the setting height from the top of each pair of punching heads to the ground is lower than the setting height from the top of each guide block to the ground, and an accommodating cavity is formed in the upper die above each guide block; the length of the pressure core is greater than that of the guide block, guide surfaces which are obliquely and downwardly arranged are arranged on two sides of the guide block, the two guide surfaces are arranged in a flaring shape from top to bottom, the side walls of a pair of punching heads are respectively abutted against one guide surface, and a hole matched with the pressure core is formed in the lower die;

step two, electrifying the punching equipment: electrifying the punching equipment, moving the upper die towards the lower die, and fixing the guide block after the guide block is abutted against the top surface of the lower die;

step three, punching is started: the upper die continuously moves downwards, the lower part of the pressure core penetrates through a hole in the lower die, the upper part of the guide block moves towards the accommodating cavity, the side walls of the pair of punching heads slide at the bottom of the upper die under the guide of the guide surfaces, and the workpiece is subjected to side punching in the continuous downward movement of the pressure core;

and step four, retracting the cutter.

Preferably, the bottom of the upper die is provided with a sliding rail, and the top of the punching head is provided with a sliding block matched with the sliding rail.

Preferably, a baffle is mounted at the end part of one side of the slide rail, which is far away from the guide block, the opposite sides of the baffle and the slide block are respectively connected with two ends of a compression spring, and when the punching head moves downwards, the compression spring is compressed.

Preferably, the tool retracting body comprises an upper die which moves upwards and drives the pressure core to move upwards, and the punching head resets along the guide surface under the action of elastic force of the compression spring.

Preferably, the compression spring is sleeved on a telescopic rod, and two ends of the telescopic rod are respectively fixed with the baffle and the opposite side of the sliding block.

Preferably, the guide surface is a sliding groove, and the side wall of the punching head is in sliding fit with the sliding groove.

Preferably, the bottom of the upper die is provided with a plurality of die closing positioning columns, and the lower die is provided with die closing positioning holes corresponding to the positioning columns.

Has the advantages that: according to the workpiece side punching method, the side punching task of the workpiece is completed by adopting a vertical downward acting force mode, the problems of poor side punching effect and high construction difficulty caused by limited inner space of the die in the prior art are solved, and the processing efficiency and the quality of the workpiece are improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a punching apparatus in an embodiment of the present application;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

in the figure: 1. an upper die; 2. a lower die; 3. a pressure core; 4. a punching head; 5. a guide block; 51. a guide surface; 6. a slide rail; 7. a slider; 8. a baffle plate; 9. a compression spring; 10. a telescopic rod; 11. and (5) closing the mold and positioning the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

A method of side punching a workpiece, the method comprising the steps of: step one, configuring punching equipment; step two, electrifying the punching equipment; step three, punching is started; and step four, retracting the cutter.

In particular, it relates to

In step one, referring to fig. 1, the punching apparatus includes an upper die 1, a lower die 2, a pressure core 3 mounted at the bottom of the upper die 1, and a pair of punching heads 4 slidably mounted at the bottom of the upper die 1. The upper die 1, the lower die 2, the pressure core 3 and the punching head 4 can be any one of the prior art. A plurality of die-closing positioning columns 11 are formed at the bottom of the upper die 1, and die-closing positioning holes corresponding to the positioning columns 11 are formed in the lower die 2. In the die closing process, the die closing positioning column 11 is inserted into the die closing positioning hole, so that the accuracy of die closing between the upper die 1 and the lower die 2 in the die closing process is ensured, the accuracy of a punching position is ensured, and the processing quality and the processing efficiency are improved.

In this embodiment, as shown in fig. 1 and 2, a slide rail 6 is threadedly mounted on the bottom of the upper die 1, and a slide block 7 that is engaged with the slide rail 6 is threadedly mounted on or molded on the top of the punching head 4. The end part of one side of the slide rail 6, which is far away from the guide block 5, is provided with a baffle plate 8, and the baffle plate 8 can be screwed at the bottom of the upper die 1. The baffle 8 and the slide block 7 are respectively connected with two ends of a compression spring 9 on the opposite sides, and the compression spring 9 is compressed when the punching head 4 moves downwards. The telescopic link 10 is located to compression spring 9 cover, and the both ends of telescopic link 10 are fixed mutually with the relative side of baffle 8 and slider 7 respectively, and when compression spring 9 compressed, telescopic link 10 shrink to at compression spring 9 reset in-process, telescopic link 10 stretches out, and the compression of a pair of compression spring 9, reset lead.

The outside cover of pressure core 3 is equipped with guide block 5, and the setting height that sets up of 4 tops of a pair of punching head to ground is less than the setting height of 5 tops of guide block to ground, has seted up on the last mould 1 that is located the top of guide block 5 and has held the chamber. The length of pressure core 3 is greater than the length of guide block 5, and the both sides of guide block 5 are provided with the slope guide surface 51 that sets up downwards, and two guide surfaces 51 are flaring shape setting from top to bottom, and the lateral wall of a pair of punching head 4 leans on with a guide surface 51 respectively, and in this embodiment, guide surface 51 is the spout, and the lateral wall of punching head 4 and this spout sliding fit to stability when guaranteeing punching head 4 and removing along guide surface 51, the condition that prevents the off tracking appears. When the upper die 1 continuously moves downwards, the top of the guide block 5 moves into the accommodating cavity, so that the punching head 4 can move downwards along the guide surface 51 on the guide block 5 to punch holes, and the lower die 2 is provided with holes matched with the pressure cores 3.

In the second step, the punching equipment is powered on, the upper die 1 moves towards the lower die 2, the guide block 5 is abutted against the top surface of the lower die 2 and then fixed, and the top of the guide block can enter the accommodating cavity when the upper die 1 continuously moves downwards.

In the third step, the upper die 1 moves downwards continuously, the lower part of the pressure core 3 penetrates into the hole on the lower die 2, the upper part of the guide block 5 moves towards the accommodating cavity, the side walls of the pair of punching heads 4 slide on the bottom of the upper die 1 under the guidance of the guide surfaces 51, and the workpiece is subjected to side punching in the continuous downward movement of the pressure core 3.

In the fourth step, the tool retracting body comprises an upper die 1 which moves upwards and drives the pressure core 3 to move upwards, and the punching head 4 is reset along the guide surface 51 under the action of the elastic force of the compression spring 9.

The workpiece side punching method is simple in process steps, small in die change and convenient to operate and use, and effectively improves the machining efficiency of workpieces.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.