Upper die mechanism with telescopic punch

Abstract

The utility model discloses an upper die mechanism with a telescopic punch. The upper die mechanism comprises an upper die base, a discharging plate assembly, an air cylinder, a sliding base, a sliding block, a base plate, a clamping plate, the punch and a spring. By means of the mode, the upper die mechanism with the telescopic punch can adjust the position state of the punch through the sliding block, the punch can be made to protrude or retract to the discharging plate assembly, staged or intermittent punching is achieved, different use requirements are met, the accuracy and stability of punch movement are improved, and the working efficiency is improved. And therefore, the stamping quality and efficiency are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to stamping equipment technical field, in particular to a kind of upper die mechanism with telescopic punch. BACKGROUND

[0002] Stamping equipment is used to exert external force to plate, strip, pipe and profile etc., so that it generates plastic deformation or separation, thereby obtaining the forming processing device of required shape and size (stamping piece).

[0003] In traditional continuous die stamping equipment, punch is fixed on upper and lower die set, when material belt is conveyed to stamping mechanism, only fixed stamping mode can be carried out, that is, punch will stamp every time.But some products need to work in stages when carrying out continuous die stamping, that is, punch needs to stamp material belt in some specific positions of material belt, and the rest of time does not need to stamp material belt, and existing stamping equipment cannot realize such operation, so it needs to be improved. UTILITY MODEL CONTENT

[0004] To solve the above technical problem, one technical scheme of the utility model is as follows:

[0005] Provide a kind of upper die mechanism with telescopic punch, it includes: upper die seat, unloading plate assembly, cylinder, sliding seat, sliding block, backing plate, clamping plate, punch, spring,

[0006] The unloading plate assembly can be lifted and set on the bottom surface of the upper die seat, the cylinder and the sliding seat are located between the upper die seat and the unloading plate assembly, and are connected with the bottom surface of the upper die seat, the sliding block is movably arranged on the sliding seat, and the cylinder drives the sliding block to move back and forth on the sliding seat, the bottom of the sliding block is provided with lifting surface, transition inclined guide surface and pressing surface in sequence, and the lifting surface is located above the pressing surface, the bottom surface of the clamping plate is provided with the punch, and the clamping plate and the unloading plate assembly are connected with the spring, to drive the clamping plate to reset upwards, the top surface of the clamping plate is provided with the backing plate, the upper part of the backing plate is provided with inclined surface matched with the transition inclined guide surface, and the top surface of the backing plate is provided with acting surface, so that the acting surface of the top of the backing plate is respectively contacted with lifting surface or pressing surface when the sliding block moves back and forth under the action of the cylinder, to drive the punch to press down or reset through the backing plate and the clamping plate.

[0007] In a preferred embodiment of the utility model, the unloading plate assembly is connected with the upper die seat through spring and guide rod.

[0008] In a preferred embodiment of the present application, the unloading plate assembly comprises an unloading back plate and an unloading plate body, and the unloading plate body is arranged on the bottom surface of the unloading back plate.

[0009] In a preferred embodiment of the present application, a limiting sliding groove is arranged on the sliding seat, and the sliding block is movably arranged in the limiting sliding groove.

[0010] In a preferred embodiment of the present application, the lifting surface is arranged on the bottom surface of the outer end of the sliding block, and the pressing surface is arranged on the inner side of the lifting surface.

[0011] In a preferred embodiment of the present application, the backing plate and / or the clamping plate are connected with the upper die seat and / or the unloading plate assembly through sliding guide columns.

[0012] The present application has the advantages that the position state of the punch can be adjusted by the sliding block, the punch can be protruded or retracted to the unloading plate assembly, so that the stage or intermittent stamping is realized, different use requirements are met, and the precision and stability of the punch movement are improved, so that the quality and efficiency of the stamping are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, 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 labor.

[0014] Fig. 1 is a punch stamping state structure schematic view of a preferred embodiment of the upper die mechanism with a telescopic punch of the present application;

[0015] Fig. 2 is a punch non-stamping state structure schematic view of a preferred embodiment of the upper die mechanism with a telescopic punch of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0017] Please refer to Figs. 1-2 , the embodiments of the present application comprise:

[0018] An upper die mechanism with retractable punch, which comprises an upper die base 1, a stripper plate assembly, a cylinder 2, a sliding base 3, a sliding block 4, a backing plate 5, a clamping plate 6, a punch 7, and a spring 8.

[0019] The stripper plate assembly is arranged on the bottom surface of the upper die base in a liftable manner, the cylinder and the sliding base are arranged between the upper die base and the stripper plate assembly and connected to the bottom surface of the upper die base, the sliding block is movably arranged on the sliding base, and the output end of the cylinder is connected to one end of the sliding block to drive the sliding block to move back and forth on the sliding base, the bottom of the sliding block is sequentially provided with a lifting surface 41, a transition inclined guide surface 42, and a pressing surface 43, and the height of the lifting surface is greater than that of the pressing surface.

[0020] Further preferably, the stripper plate assembly is connected to the upper die base through elastic columns and guide rods.

[0021] Further preferably, the stripper plate assembly comprises a stripper back plate 9 and a stripper plate body 10, and the stripper plate body is arranged on the bottom surface of the stripper back plate.

[0022] Further preferably, a limiting sliding groove is arranged on the sliding base, and the sliding block is movably arranged in the limiting sliding groove to improve the stability of the movement of the sliding block.

[0023] Further preferably, the lifting surface is arranged on the bottom surface of the outer end of the sliding block, and the pressing surface is arranged on the inner side of the lifting surface.

[0024] The bottom surface of the clamping plate is provided with the punch, and the clamping plate is connected to the stripper plate assembly through the spring to drive the clamping plate to reset upward, the top surface of the clamping plate is provided with the backing plate, the upper part of the backing plate is provided with an inclined surface 51 matched with the transition inclined guide surface, so that when the sliding block moves back and forth under the action of the cylinder, the acting surface 52 on the top of the backing plate is in contact with the lifting surface, the transition inclined guide surface, or the pressing surface respectively, so as to drive the punch to press down or reset through the backing plate and the clamping plate.

[0025] Further preferably, the backing plate and / or the clamping plate are connected to the upper die base and / or the stripper plate assembly through sliding guide columns to further improve the accuracy of the movement of the punch.

[0026] When the punch needs to be used, the cylinder drives the sliding block to move to the right for a distance, the transition inclined guide surface first matches with the inclined surface to press the backing plate downward for a distance, which is also convenient for the subsequent introduction of the pressing surface, then the cylinder continues to drive the sliding block to move to the right until the pressing surface is in contact with the acting surface on the top of the backing plate (at this time, the spring is in a compressed state), so as to push the punch out of the stripper plate assembly, thereby enabling the punch to complete the stamping.

[0027] Similarly, when the punch does not need to be used, the cylinder drives the sliding block to move to the left until the lifting surface is in contact with the acting surface on the top of the backing plate, and the backing plate and the clamping plate move upward and reset under the action of the spring, so that the punch is retracted into the stripper plate assembly and does not perform the stamping work.

[0028] The upper die mechanism with the retractable punch has the beneficial effects that the position state of the punch can be adjusted by the sliding block, the punch can be protruded or retracted to the unloading plate assembly, so that the stage or intermittent stamping is realized, different use requirements are met, and the accuracy and stability of the punch movement are improved, so that the quality and efficiency of the stamping are ensured.

[0029] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An upper die mechanism having a retractable punch, characterized by, The utility model relates to a die set, which comprises: The ejector plate assembly is arranged on the bottom surface of the upper die seat in a lifting manner, the cylinder and the sliding seat are located between the upper die seat and the ejector plate assembly and connected to the bottom surface of the upper die seat, the sliding block is movably arranged on the sliding seat, the cylinder drives the sliding block to move back and forth on the sliding seat, the bottom of the sliding block is sequentially provided with a lifting surface, a transition inclined guide surface and a pressing surface, the lifting surface is located above the pressing surface, the bottom surface of the clamping plate is provided with the punch, the clamping plate and the ejector plate assembly are connected by the spring to drive the clamping plate to reset upward, the top surface of the clamping plate is provided with the backing plate, the upper part of the backing plate is provided with an inclined surface matched with the transition inclined guide surface, and the top surface of the backing plate is provided with an acting surface, so that the acting surface on the top of the backing plate is in contact with the lifting surface or the pressing surface when the sliding block moves back and forth under the action of the cylinder, the punch is driven downward or reset by the backing plate and the clamping plate. The ejector plate assembly is connected to the upper die seat by the spring and the guide rod.

2. An upper die assembly having a retractable punch according to claim 1, wherein, The ejector plate assembly comprises an ejector back plate and an ejector plate body, and the ejector plate body is arranged on the bottom surface of the ejector back plate.

3. The upper die assembly having a retractable punch of claim 1 wherein, The sliding seat is provided with a limiting sliding groove, and the sliding block is movably arranged in the limiting sliding groove.

4. The upper die assembly having a retractable punch of claim 1 wherein, The lifting surface is arranged on the bottom surface of the outer end of the sliding block, and the pressing surface is arranged on the inner side of the lifting surface.

5. The upper die assembly of claim 1 wherein, The backing plate and / or the clamping plate are connected to the upper die seat and / or the ejector plate assembly by the sliding guide column.

6. The upper die assembly having a retractable punch of claim 1 wherein, ​

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