CN216095809U

CN216095809U - Punching device for trimming rough edges of die-casting cylinder body

Info

Publication number: CN216095809U
Application number: CN202121815540.7U
Authority: CN
Inventors: 王紫婵; 王琼
Original assignee: Dongguan Zhonggang Mould Co ltd
Current assignee: Dongguan Zhonggang Mould Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-22
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a punching device for trimming rough edges of a die-casting cylinder body, which comprises a supporting component and a punching component, wherein the supporting component comprises: the supporting component is provided with a cylinder body clamping area and a protecting area; be equipped with outer pressure ring and die-cut post on the die-cut subassembly, the outer pressure ring can compress tightly the cylinder body, and die-cut post can die-cut cylinder body inner wall. According to the utility model, the outer ring is arranged on the punching assembly, so that the cylinder body can be pressed in front of the inner wall of the punching cylinder body, the stability of the cylinder body is ensured, the punching quality is further ensured, and the accidental injury of the punching column to the upper end part of the cylinder body is avoided; through set up the protection strip in the cylinder body periphery, can effectively protect the structure of cylinder body outer wall, avoid die-cut in-process to damage the outer wall, promote the cylinder body yields after the die-cut.

Description

Punching device for trimming rough edges of die-casting cylinder body

Technical Field

The utility model relates to the technical field of jigs, in particular to a punching device for trimming rough edges of a die-casting cylinder body.

Background

In production, in order to ensure mechanical properties, most functional cylinder bodies are formed by die-casting, but the characteristics of the die-casting forming process determine that a water gap can be remained on a casting, and residues and burrs can be more or less remained on the casting according to different forming conditions and different metal materials. In use, the functional cylinder body generally bears important structural components such as moving parts and the like, so that the inner wall of the cylinder body needs to have certain surface finish; meanwhile, the outer wall of the cylinder body is often designed with anti-skid heat dissipation grooves or even transmission structures, and the damage of the structures can influence the normal use of the cylinder body. Therefore, after the die-casting cylinder body is formed, the finishing treatment is needed, and the smoothness of the inner wall of the cylinder body is improved on the premise of not damaging the structure of the outer wall of the cylinder body.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides the punching device for trimming the cylinder body rough edges, which can be used for pressing the cylinder body before punching the inner wall of the cylinder body, ensuring the stability of the cylinder body and the punching quality, effectively protecting the structure of the outer wall of the cylinder body, avoiding the damage to the outer wall in the punching process and improving the yield of the punched cylinder body.

In order to solve the technical problems, the utility model adopts a technical scheme as follows:

a punching device for trimming rough edges of a die-casting cylinder body is arranged on a punching jig provided with a first driving device and a second driving device; the die-cutting device includes:

the supporting assembly comprises a bottom plate which is detachably and fixedly arranged on the jig, more than one first positioning structure matched with the bottom of the cylinder body is arranged on the bottom plate, a supporting base plate is arranged at the upper end part of each first positioning structure on the bottom plate, a second positioning structure matched with the cylinder body is arranged on each supporting base plate, and the bottom plate and each supporting base plate jointly enclose more than one clamping area capable of clamping the bottom of the cylinder body; each supporting base plate is provided with a guard plate matched with the outer wall of the cylinder body, and a plurality of protection strips matched with the outer wall of the cylinder body and extending upwards are arrayed on each guard plate; each guard plate and the plurality of guard strips jointly enclose a protection area capable of protecting the outer wall of the cylinder body;

a punch assembly disposed above the support assembly; the punching device comprises a top plate which is arranged on the punching jig and is in transmission connection with the first driving device, wherein a punching base plate is arranged at the lower end part of the top plate right above each guard plate, an outer pressing ring matched with the upper end part of the cylinder body is arranged at the lower end part of each punching base plate, and each outer pressing ring can press the upper end surface of the cylinder body under the driving of the first driving device; the center of each outer pressure ring is provided with a punching column, and each punching column is in transmission connection with the second driving device and can move under the driving of the second driving device so as to punch the inner wall of the cylinder body.

As a further elaboration of the above technical solution:

in the technical scheme, the bottom end part of each punching column is provided with a shoulder, and the contour of each shoulder is matched with the contour of the inner wall of the cylinder body; and a groove matched with the shoulder is formed in the bottom end part of each outer pressure ring.

In the technical scheme, a protective cover is sleeved on the periphery of each outer pressure ring.

In the technical scheme, each protection strip is an elastic protection strip; when the cylinder body is fixed on the supporting component, the upper end part of each protection strip extends to the outer side of the upper end surface of the cylinder body.

In the above technical solution, each of the first positioning structure and the second positioning structure is a through hole; a chip groove is formed below the bottom plate.

In the above technical scheme, the bottom plate and the top plate are respectively provided with more than two limiting columns in a matching manner.

In the technical scheme, the bottom plate is detachably and fixedly provided with a plurality of lower guide pieces, and the top plate is detachably and fixedly provided with a plurality of upper guide pieces matched with the lower guide pieces one by one.

Compared with the prior art, the utility model has the beneficial effects that: the outer ring is arranged on the punching assembly, so that the cylinder body can be pressed in front of the inner wall of the cylinder body during punching, the stability of the cylinder body is ensured, the punching quality is further ensured, and the accidental injury of punching columns to the upper end part of the cylinder body is avoided; through set up the protection strip in the cylinder body periphery, can effectively protect the structure of cylinder body outer wall, avoid die-cut in-process to damage the outer wall, promote the cylinder body yields after the die-cut.

Drawings

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

FIG. 2 is a partially exploded view of the support assembly of the present embodiment;

figure 3 is a partially exploded view of the punch assembly of this embodiment.

In the figure: 30. a support assembly; 31. a base plate; 32. a support pad; 33. a guard plate; 34. a protective strip; 35. a lower guide; 40. punching a component; 41. a top plate; 42. punching a base plate; 43. an outer pressure ring; 44. punching the column; 45. a protective cover; 46. an upper guide; 47. connecting columns; 50. a cylinder body; 1. a first positioning structure; 2. a second positioning structure; 3. a shoulder; 4. a groove; 5. a chip groove; 6. a limiting column.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1, a punching device for trimming burrs of a die-casting cylinder is installed on a punching jig provided with a first driving device and a second driving device; the punching device includes:

as shown in fig. 2, the supporting assembly 30 includes a bottom plate 31 detachably fixed on the fixture, the bottom plate 31 is provided with more than one first positioning structure 1 adapted to the bottom of the cylinder, the bottom plate 31 is provided with a supporting base plate 32 at the upper end of each first positioning structure 1, each supporting base plate 32 is provided with a second positioning structure 2 adapted to the cylinder, and the bottom plate 31 and each supporting base plate 32 together enclose more than one clamping area capable of clamping the bottom of the cylinder; each supporting cushion plate 32 is provided with a guard plate 33 matched with the outer wall of the cylinder body, and a plurality of protective strips 34 matched with the outer wall of the cylinder body and extending upwards are arrayed on each guard plate 33; each guard plate 33 and the plurality of guard bars 34 together enclose a protection area capable of protecting the outer wall of the cylinder.

As shown in fig. 3, a blanking assembly 40 disposed above the support assembly 30; the punching device comprises a top plate 41 which is arranged on a punching jig and is in transmission connection with a first driving device, wherein a punching base plate 42 is arranged at the lower end part of the top plate 41 right above each guard plate 33, an outer pressing ring 43 matched with the upper end part of a cylinder body is arranged at the lower end part of each punching base plate 42, and each outer pressing ring 43 can press the upper end surface of the cylinder body under the driving of the first driving device; and a punching column 44 is arranged at the center of each outer ring 43, and each punching column 44 is in transmission connection with the second driving device and can move under the driving of the second driving device so as to punch the inner wall of the cylinder body.

Specifically, the bottom end of each punching column 44 is provided with a shoulder 3, and the contour of each shoulder 3 is matched with the contour of the inner wall of the cylinder body; a groove 4 matched with the shoulder 3 is arranged at the bottom end part of each outer pressure ring 43.

In this embodiment, the upper end of the outer ring 43 is uniformly arranged with a plurality of connecting columns 47 on the periphery of the punching column 44, the upper end of each connecting column 47 is detachably and fixedly connected with the punching pad 42, and the lower end is detachably and fixedly connected with the outer ring 43. The connecting columns 47 can ensure that the driving force of the first driving device is smoothly applied to the outer pressing ring 43, so that the balanced pressure is applied to the cylinder body, the stability of the cylinder body is ensured, and the punching quality of the punching columns 44 is ensured.

Specifically, a protective cover 45 is sleeved on the periphery of each outer ring 43.

It will be appreciated that the protective cover 45 may serve the purpose of protecting the punch posts 44 and the outer collar 43. Meanwhile, in the embodiment, the outer diameter of the protective cover 45 is larger than that of the protective area, so that the damage to the outer wall of the cylinder body caused by the falling of foreign matters from the punching assembly 40 before or during punching can be avoided.

Specifically, each of the first positioning structure 1 and the second positioning structure 2 is a through hole; a chip groove 5 is arranged below the bottom plate 31.

Specifically, more than two limiting columns 6 are arranged on the bottom plate 31 and the top plate 41 in a matched manner.

In this embodiment, a position sensor is disposed on one of the limiting posts 6, and the position sensor is electrically connected to the first driving device: when the position sensor receives a position signal of the other corresponding limiting column 6, the position sensor sends an instruction to stop driving the first driving device, so that the cylinder body is prevented from being damaged by pressure. At this time, the elastic protection bars 34 at the periphery of the cylinder body can play a role of buffering pressure, thereby further protecting the cylinder body.

During application, sensors with different functions can be arranged on the bottom plate 31, the top plate 41, the outer pressure ring 43 or other components according to actual conditions, so that the distance between the outer pressure ring 43 and the upper end face of the cylinder body can be sensed in time, the first driving device is instructed to stop driving in time, and the cylinder body is protected.

Specifically, the bottom plate 31 is detachably and fixedly provided with a plurality of lower guide members 35, and the top plate 41 is detachably and fixedly provided with a plurality of upper guide members 46 matched with the lower guide members 35 one by one.

In this embodiment, the upper guide 46 is a guide sleeve, and the lower guide 35 includes a guide post and a guide sleeve.

The working process of the utility model is as follows: firstly, sequentially installing punching devices on a punching jig, and temporarily not placing the protection strips 34; connecting the top plate 41 with the first driving device, and connecting the blanking column 44 with the second driving device; and then the bottom end part of the cylinder body 50 is clamped and fixed in the clamping and fixing area of the supporting component 30, and then the protection strip 34 is sequentially matched and arranged on the outer wall of the cylinder body, so that the fixation and protection of the cylinder body 50 are completed. Starting the first driving device, the top plate 41 moves downwards to drive the punching backing plate 42 and the limiting column 6 on the top plate to move downwards, the punching backing plate 42 stably pushes the outer pressure ring 43 to move downwards through the connecting column 47 and press the cylinder body 50, meanwhile, the limiting column 6 on the top plate 41 is matched and abutted with the limiting column 6 on the bottom plate 31, and the top plate 41 stops moving downwards; the punching column 44 moves downwards under the driving of the second driving device, a water gap and burrs on the inner wall of the punching cylinder body 50 are punched, and the scraps fall into a scrap groove 5 below. After the punching is finished, the second driving device drives the punching column 44 to move upwards, and the shoulder 3 on the punching column 44 can push the outer ring 43 to move upwards so as to relieve the pressure applied to the cylinder body 50 in time; the first driving means reversely drives the top plate 31 to move up, thereby canceling the downward pressure; finishing the trimming and deburring operation of the inner wall of the cylinder 50.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A punching device for trimming rough edges of a die-casting cylinder body is characterized by being arranged on a punching jig provided with a first driving device and a second driving device; the die-cutting device includes:

2. A die-cutting device for trimming flash of die-cast cylinder according to claim 1, wherein the bottom end of each die-cutting post is provided with a shoulder, the contour of each shoulder being adapted to the contour of the inner wall of the cylinder; and a groove matched with the shoulder is formed in the bottom end part of each outer pressure ring.

3. A blanking unit for trimming flash of die-cast cylinders according to claim 1 wherein each of said outer rings is provided with a protective cover around its periphery.

4. A die-cutting apparatus for trimming flash of die-cast cylinders according to claim 1, wherein each of said protective strips is an elastic protective strip; when the cylinder body is fixed on the supporting component, the upper end part of each protection strip extends to the outer side of the upper end surface of the cylinder body.

5. A die cutting device for trimming flash of a die cast cylinder as claimed in claim 1, wherein each of said first and second locating formations is a through hole; a chip groove is formed below the bottom plate.

6. The die-cutting device for trimming burrs of a die-casting cylinder according to claim 1, wherein two or more limiting posts are provided on the bottom plate and the top plate in a matching manner.

7. The apparatus according to any one of claims 1 to 6, wherein a plurality of lower guides are detachably fixed on the bottom plate, and a plurality of upper guides matching with the lower guides are detachably fixed on the top plate.