CN115921666A

CN115921666A - Be used for section bar multiaspect punching device

Info

Publication number: CN115921666A
Application number: CN202211515246.3A
Authority: CN
Inventors: 李启晨
Original assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Current assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-07

Abstract

The invention belongs to the field of punching equipment, and provides a multi-surface punching device for a profile, which comprises: a work table; the positioning unit is arranged on the workbench, a core rod and a plurality of positioning plates are arranged on the positioning unit, the core rod is surrounded by the positioning plates, a product cavity is formed between the positioning plates and the core rod, and the product cavity is used for placing a workpiece to be machined; the punching unit is arranged on the workbench and positioned outside the positioning unit, and is provided with a punch capable of moving axially, and the punch can extend into the product cavity; and the ejection unit is arranged below the workbench and is provided with a lifting ejector rod, and the ejector rod can eject the processed workpiece to the product cavity. Compared with the prior art, the four-side punching process has the advantages that the four-side punching process only needs one-time clamping without die changing, the productivity of products is improved, and the products are convenient to take and place.

Description

Be used for section bar multiaspect punching device

Technical Field

The invention belongs to the field of punching equipment, and particularly relates to a multi-surface punching device for a profile.

Background

Along with the rapid development of the automobile industry, the standardization of automobile parts is more and more perfect, and multiple automobile types share the same energy absorption box, so that the production is convenient, and the cost of the automobile parts is reduced.

The cross section of an existing energy absorption box of an anti-collision beam assembly is a closed cavity, and four faces of the product need to be punched, but the existing machining process for punching holes in four faces is generally realized by adopting a mode of CNC (computer numerical control) drilling and single-face punching, the CNC drilling and single-face punching are low in punching efficiency, low in productivity and large in investment, and the existing production requirements cannot be met.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a multi-surface punching device for a profile.

The technical scheme adopted by the invention for solving the technical problems is as follows: a multi-surface punching device for section bars is provided, which comprises: a work table;

the positioning unit is arranged on the workbench, a mandrel and a plurality of positioning plates are arranged on the positioning unit, the positioning plates surround the mandrel, a product cavity is formed between the positioning plates and the mandrel, and the product cavity is used for placing a workpiece to be machined;

the punching unit is arranged on the workbench and positioned outside the positioning unit, and is provided with a punch capable of moving axially, and the punch can extend into the product cavity;

and the ejection unit is arranged below the workbench and is provided with a lifting ejector rod, and the ejector rod can eject the processed workpiece to the product cavity.

In the multi-surface punching device for the section bar, the punching unit is provided with a driving oil cylinder and a material pushing plate, the driving end of the driving oil cylinder is clamped with one end of the material pushing plate, and the punch is arranged at the other end of the material pushing plate.

In the multi-surface punching device for the sectional material, the outer side wall of the positioning plate is provided with the guide pillar, the material pushing plate is provided with the guide sleeve, and the guide sleeve is movably connected with the guide pillar.

In the multi-surface punching device for the sectional material, the lower end of the core rod is provided with the fixed seat, and the ejector rod is inserted in the fixed seat and positioned in the product cavity.

In foretell a be used for section bar multiaspect punching device, the positioning unit has the locating rack, the locating rack is located product die cavity top and with the workstation is connected, the feed inlet has been seted up on the locating rack, the feed inlet with product die cavity intercommunication.

In foretell a be used for section bar multiaspect punching device, still including pushing away the material unit, push away the material unit set up in on the locating rack, it has the material cylinder that pushes away to push away the material unit, it is located to push away the material cylinder the top of feed inlet.

In the above multi-surface punching device for the sectional material, the pushing unit is provided with a support, and the pushing cylinder is arranged at the end part of the support far away from the positioning frame.

In the multi-surface punching device for the sectional materials, the positioning unit is further provided with a detection element, the detection element is arranged on the workbench and is used for detecting whether a workpiece to be machined in the product cavity is in a preset position or not.

In the multi-surface punching device for the sectional material, the ejection unit is provided with an ejection cylinder, the ejection cylinder is arranged below the workbench, and the ejector rod is connected with the driving end of the ejection cylinder.

In the multi-surface punching device for the section bar, the lower end of the workbench is provided with the slag pipe, and the slag pipe is positioned below the core rod.

Compared with the prior art, the invention has the following beneficial effects:

1. the four-side punching process is adopted, only one-time clamping is needed, die changing is not needed, the productivity of products is improved, and the products are convenient to take and place.

2. A product cavity is formed between the positioning plate and the core rod, and a workpiece is placed in the product cavity, so that positioning can be realized, the relative tolerance between the product and the cavity and between the product and the core rod can be reduced, the times of die repairing and blending are reduced, and the product qualification is increased.

3. The slag material pipe is arranged, waste materials on the workpiece, which are flushed by the punch, are blanked to the slag material groove from the core rod, the waste materials are placed to be clamped, and the working efficiency is improved.

Drawings

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

FIG. 2 is a top view of a portion of the structure of the present invention;

FIG. 3 is a cross-sectional view of the structure of the present invention;

FIG. 4 is a schematic view of the structure of the punching unit;

FIG. 5 is a schematic view of the positioning unit;

FIG. 6 is a schematic structural view of the ejection unit and the worktable;

FIG. 7 is a schematic structural view of the pushing unit;

fig. 8 is a schematic view of the structure of a workpiece to be processed.

In the figure, the position of the upper end of the main shaft,

1. a work table; 100. a slag pipe;

2. a positioning unit; 200. a core rod; 201. positioning a plate; 202. a product cavity; 203. a guide post; 204. a fixed seat; 205. a positioning frame; 206. a feed inlet; 207. a detection element; 208. a limit sensor;

3. a punching unit; 300. a punch; 301. a driving oil cylinder; 302. a material pushing plate; 303. a guide sleeve;

4. an ejection unit; 400. a top rod; 401. ejecting out the cylinder;

5. a material pushing unit; 500. a material pushing cylinder; 501. and (3) a bracket.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 8, the multi-sided punching device for section bars comprises: a work table 1; the positioning unit 2 is arranged on the workbench 1, a core rod 200 and a plurality of positioning plates 201 are arranged on the positioning unit 2, the core rod 200 is enclosed by the positioning plates 201, a product cavity 202 is formed between the positioning plates 201 and the core rod 200, and the product cavity 202 is used for placing a workpiece to be processed; the punching unit 3 is arranged on the workbench 1 and positioned outside the positioning unit 2, a punch 300 capable of moving axially is arranged on the punching unit 3, and the punch 300 can extend into the product cavity 202; and the ejection unit 4 is arranged below the workbench 1, the ejection unit 4 is provided with a lifting ejector rod 400, and the ejector rod 400 can eject the processed workpiece to the product cavity 202.

The hollow core rod 200 is adopted as the core rod 200 on the multi-surface punching device for the section bar, the core rod 200 is installed in the center of the workbench 1, the positioning plates 201 are located on the outer sides of the core rod 200, and a product cavity 202 which just accommodates a workpiece to be machined is formed by the core rod 200 and the center, so that the product cavity 202 plays a role in positioning the workpiece, the punching unit 3 is located on the outer side of the positioning unit 2, a plurality of punches 300 are arranged on the outer side of each positioning plate 201, the punches 300 can axially move to penetrate through the positioning plates 201 to punch the workpiece in the product cavity 202, the arrangement has the advantages that the workpiece can be punched by one-time clamping, one surface does not need to be machined, the positioning clamping machining is carried out again, the precision and the quality of the product can be guaranteed, the ejector rod 400 of the ejection unit 4 is located below the product cavity 202, when the workpiece is machined, the ejector rod 400 can move upwards to eject the workpiece in the product cavity 202, the workpiece is convenient to take out by manpower and carry out a next group of machining, and the productivity of the product is effectively improved.

As shown in fig. 2 to 4, the punching unit 3 has a drive cylinder 301 and a material pushing plate 302, a drive end of the drive cylinder 301 is engaged with one end of the material pushing plate 302, and a punch 300 is provided on the other end of the material pushing plate 302.

The material pushing plate 302 is composed of an outer layer plate and an inner layer plate, the driving end of the driving oil cylinder 301 is clamped with the outer side plate of the material pushing plate 302, the plurality of punches 300 are arranged on the inner layer plate, after the workpiece in the product cavity 202 is placed in place, the driving oil cylinder 301 is driven to take oil, the driving end of the driving oil cylinder 301 drives the material pushing plate 302 to move towards the direction opposite to the positioning plate 201, and therefore the punches 300 penetrate through the positioning plate 201 to punch the workpiece in the product cavity 202.

As shown in fig. 2 to 5, a guide post 203 is disposed on an outer side wall of the positioning plate 201, a guide sleeve 303 is disposed in the material pushing plate 302, and the guide sleeve 303 is movably connected with the guide post 203.

Through holes are formed in corresponding positions of an inner side plate and an outer side plate of the material pushing plate 302, the guide sleeve 303 is installed in the through hole of the inner side plate, the guide pillar 203 is arranged on the outer side of the positioning plate 201, and when the driving oil cylinder 301 drives the material pushing plate 302 to move, the guide pillar 203 and the guide sleeve 303 can play a guiding role, so that punching of a workpiece by the punch 300 is guaranteed, and the precision of the machined workpiece is guaranteed.

As shown in fig. 3 and 6, the lower end of the core rod 200 is provided with a fixing seat 204, and the ejector rod 400 is inserted into the fixing seat 204 and is located in the product cavity 202.

The lower end of the core rod 200 is provided with a fixed seat 204, the width of the periphery of the fixed seat 204 is larger than that of the core rod 200, and the positioning plates 201 are arranged above the fixed seat 204 through bolts, so that a gap is reserved between the core rod 200 and the positioning block to form a product cavity 202. And the ejector rod 400 penetrates through the fixed seat 204 and can extend into the product cavity 202 to eject a processed workpiece, and it is worth mentioning that a limit sensor 208 is arranged beside the fixed seat 204, and the limit sensor 208 is matched with the driving oil cylinder 301 for use.

As shown in fig. 1 to 3 and 5, the positioning unit 2 has a positioning frame 205, the positioning frame 205 is located above the product cavity 202 and connected to the worktable 1, a feeding hole 206 is formed in the positioning frame 205, and the feeding hole 206 is communicated with the product cavity 202.

Locating rack 205 has four column bases, and the column base is connected with workstation 1 to bolted connection is passed through with the top of below location portion to the frame plate of locating rack 205, guarantees firmly setting up on workstation 1 of location portion, can not appear rocking the phenomenon such as, guarantees not influenced in the work piece processing.

As shown in fig. 3 and 7, the device includes a material pushing unit 5, the material pushing unit 5 is disposed on the positioning frame 205, the material pushing unit 5 has a material pushing cylinder 500, and the material pushing cylinder 500 is located above the material inlet 206.

The material pushing cylinder 500 is located above the feeding hole 206, a workpiece to be processed is manually placed on the feeding hole 206, the material pushing cylinder 500 is driven to move downwards and push the workpiece into a preset position in the product cavity 202, and then accurate punching of the workpiece by the subsequent punch 300 is guaranteed.

As shown in fig. 3 and 7, the pushing unit 5 has a bracket 501, and the pushing cylinder 500 is disposed on an end of the bracket 501 far from the positioning frame 205.

One end and the locating rack 205 of support 501 are connected, and the other end of support 501 extends to the outside, is "L" type structure of falling, pushes away material cylinder 500 and installs in the extension department, guarantees to push away material cylinder 500 and is located feed inlet 206 top, nevertheless does not influence the work piece and inserts feed inlet 206.

As shown in fig. 1 and 5, the positioning unit 2 further has a detecting element 207, the detecting element 207 is disposed on the workbench 1, and the detecting element 207 is used for detecting whether a workpiece to be processed in the product cavity 202 is located at a preset position.

The detecting element 207 is a resistance detector, and detects whether the workpiece is mounted in place by the resistance detector, and the driving cylinder 301 of the punching unit 3 is actuated when the workpiece is mounted in place.

As shown in fig. 3 and 6, the ejector unit 4 has an ejector cylinder 401, the ejector cylinder 401 is disposed below the table 1, and a drive-end ejector rod 400 of the ejector cylinder 401 is connected.

The ejection cylinders 401 are provided with two ejection cylinders 401, the ejector rod 400 is installed at the driving end of each ejection cylinder 401, and the two ejection cylinders 401 are arranged diagonally, so that the four ejection cylinders 401 and the four ejector rods 400 are not needed, the workpiece cost is reduced, and meanwhile, workpieces in the product cavity 202 can be effectively ejected.

As shown in fig. 3, a slag pipe 100 is provided at a lower end of the table 1, and the slag pipe 100 is located below the core rod 200.

The core rod 200 is provided with through holes at a plurality of corresponding punching positions, and after the workpiece in the product cavity 202 is punched by the punch 300, the punched waste material falls into the slag charge pipe 100 from the hollow position in the middle of the core rod 200, so that the waste material is prevented from being blocked in the core rod, and the subsequent workpiece punching is not influenced.

The working principle of the section bar multi-surface punching device is as follows:

a workpiece to be processed is manually and vertically inserted into the feeding hole 206, then the pushing cylinder 500 acts, the driving end of the pushing cylinder 500 moves downwards and drives the workpiece to be inserted into the product cavity 202 to a preset position, when the workpiece is at the preset position, the detection element 207 is subjected to the signal to realize detection, and after the detection workpiece is determined in place, the punching unit 3 is formed by a group of driving cylinders 301 which are oppositely arranged to act first, the driving ends of the driving cylinders 301 drive the material pushing plate 302 to move towards the positioning plate 201 at the corresponding position, so that a plurality of punches 300 penetrate through the positioning plate 201 to penetrate into the product cavity 202 to punch holes on two end faces of the workpiece, after the punching is finished, the entrance limit sensor 208 senses in place, the group of driving oil cylinders 301 simultaneously drives the corresponding material pushing plates 302 to reset, when the group of driving oil cylinders 301 are reset, the inlet limit sensor 208 senses in place, so that the other group of the punching units 3 acts in a manner of oppositely arranging the driving oil cylinders 301, the driving ends of the driving oil cylinders 301 drive the material pushing plates 302 to move towards the direction of the positioning plates 201 at the corresponding positions, a plurality of punches 300 penetrate through the positioning plates 201 to penetrate into the product cavities 202 to punch the other two end faces of the workpiece, after the punching is finished, the entrance limit sensor 208 senses in place, the set of driving cylinders 301 simultaneously drives the corresponding material pushing plate 302 to reset, and after the set of driving cylinders 301 is reset, the limit sensor 208 senses the position in place, the driving end of the material pushing cylinder 500 resets and is separated from abutting against the upper end of the workpiece, then, the ejection cylinder 401 drives the ejector rod 400 to move upwards, the ejector rod 400 pushes the processed workpiece to move upwards in the product cavity 202, the upper end of the product cavity 202 is exposed out of the feed port 206, and the workpiece is manually taken out from the feed port 206 completely, so that the next group of workpieces is punched.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A multi-face punching device for profiles is characterized by comprising:

a work table;

2. The multi-face punching device for the section bars as claimed in claim 1, wherein the punching unit is provided with a driving oil cylinder and a pushing plate, the driving end of the driving oil cylinder is clamped with one end of the pushing plate, and the punch is arranged on the other end of the pushing plate.

3. The multi-face punching device for the section bars as claimed in claim 2, wherein the outer side wall of the positioning plate is provided with a guide post, the material pushing plate is provided with a guide sleeve, and the guide sleeve is movably connected with the guide post.

4. The multi-face punching device for the section bars as claimed in claim 1, wherein the lower end of the mandrel is provided with a fixed seat, and the ejector rod is inserted into the fixed seat and positioned in the product cavity.

5. The multi-surface punching device for the section bars as claimed in claim 1, wherein the positioning unit is provided with a positioning frame, the positioning frame is positioned above the product cavity and connected with the workbench, and the positioning frame is provided with a feeding hole which is communicated with the product cavity.

6. The multi-face punching device for the section bars as claimed in claim 5, further comprising a material pushing unit, wherein the material pushing unit is arranged on the positioning frame, the material pushing unit is provided with a material pushing cylinder, and the material pushing cylinder is located above the feeding hole.

7. The multi-face punching device for the section bars as claimed in claim 6, wherein the pushing unit is provided with a bracket, and the pushing cylinder is arranged on the end of the bracket far away from the positioning frame.

8. The multi-face punching device for the sectional materials, as claimed in claim 1, wherein the positioning unit further comprises a detection element, the detection element is disposed on the workbench, and the detection element is used for detecting whether the workpiece to be processed in the product cavity is at a preset position.

9. The multi-face punching device for the section bars as claimed in claim 1, wherein the ejection unit is provided with an ejection cylinder, the ejection cylinder is arranged below the workbench, and the driving end of the ejection cylinder is connected with the ejector rod.

10. The multi-face punching device for the section bars as claimed in claim 5, wherein a slag pipe is arranged at the lower end of the workbench and is located below the mandrel.