CN209936291U

CN209936291U - Novel punch for riveting press

Info

Publication number: CN209936291U
Application number: CN201920325891.6U
Authority: CN
Inventors: 石福强
Original assignee: YUEQING BEIRUIMU ELECTRIC Co Ltd
Current assignee: Zhejiang berem Precision Machinery Co., Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-01-14
Anticipated expiration: 2029-03-14

Abstract

The utility model discloses a novel punch for riveting press, including punch stem, punch body and lock sleeve, be provided with first air duct on the punch stem, the punch body includes preceding tip and cooperation portion, cooperation portion is the taper sleeve structure that becomes gradually from the junction with preceding tip to terminal cross section, the tip of punch stem forms the taper head of hugging closely the adaptation with cooperation portion inboard formation, the preceding tip of punch body is provided with the second air duct that communicates with first air duct and at least two absorption holes that communicate with the second air duct and run through the preceding tip end in the axial direction; the locking sleeve comprises a sleeve-joint part and a sleeve body part, wherein the shape of the inner side surface of the sleeve-joint part is matched with that of the outer side surface of the matching part, and the sleeve body part is integrally formed with the sleeve-joint part and is in threaded connection with the outer side of the punch; when the front end part of the punch body is worn or damaged, the locking sleeve can be screwed and loosened to realize the independent replacement of the punch body; and the matching part of the punch body and the conical head of the punch rod form conical matching, and the punch rod has better sealing performance after connection, so that the negative pressure adsorption through the air duct is not influenced.

Description

Novel punch for riveting press

Technical Field

The utility model relates to a riveting technical field, in particular to novel drift is used to riveting press.

Background

The riveting machine utilizes punching machine equipment and a special connecting die to form a stress-free concentrated internal mosaic round point with certain tensile strength and shear strength through an instant strong high-pressure processing process according to the cold extrusion deformation of the material of the plate, and then two layers or multiple layers of plates with different materials and different thicknesses can be connected. The connection point is firm and reliable, simple to operate, low in consumption and low in maintenance cost, so that the device is a common device in the manufacturing field. When riveting annular workpieces such as nuts through a riveting press, the nuts are usually adsorbed by a novel punch head for the riveting press, and the nuts are pressed into corresponding riveting holes in the workpieces by pressure. However, along with the long-time use of the novel punch for the riveting press, the end part of the novel punch for the riveting press is very easy to wear or damage, when the condition occurs, the whole novel punch for the riveting press needs to be replaced in order to avoid influencing the vacuum adsorption nut or the final riveting effect of the nut, and the riveting cost is greatly improved.

Therefore, need improve current riveting press with novel drift, when wearing and tearing appear or damage in the end of drift, can replace, do not influence the adsorption efficiency of riveting press with novel drift to the nut simultaneously.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel drift is used to riveting press can replace when wearing and tearing appear or damage in the end of drift, does not influence the adsorption performance of novel drift for the riveting press to the nut simultaneously.

The utility model discloses a novel drift is used to riveting press, include:

the punching rod is provided with a first air duct;

the punch body comprises a front end part and a matching part, the matching part is of a taper sleeve structure with the cross section gradually enlarged from the joint with the front end part to the tail end, the end part of the punch rod is provided with a taper head which is used for being inserted into the matching part, the outer side of the taper head is closely matched with the inner side of the matching part, and the front end part of the punch body is axially provided with a second air passage communicated with the first air passage and at least two adsorption holes communicated with the second air passage and penetrating through the tail end of the front end part; a sealing ring with a conical structure is arranged between the outer conical surface of the lower end part of the punch rod and the inner conical surface of the matching part, a positioning groove is formed at the edge of the upper part of the matching part, and a positioning boss matched with the positioning groove is formed at the corresponding position outside the lower end of the punch rod;

the locking sleeve comprises a sleeving part and a sleeve body part, wherein the shape of the inner side face of the sleeving part is matched with that of the outer side face of the matching part, and the sleeve body part is integrally formed with the sleeving part and is used for being in threaded connection with the outer side of the punch rod.

Furthermore, the nut positioning device also comprises a positioning piece which is arranged on the front end part and used for positioning the nut, and the positioning piece is arranged by being surrounded by the adsorption hole.

Further, the inner diameter of the second air duct is smaller than the inner diameter of the first air duct.

Further, the end of the first air passage is formed into a contraction section which is communicated with the first air passage and has a gradually reduced inner diameter.

Furthermore, the outer side of the front end part is also coated with a wear-resistant layer, and corresponding holes are respectively formed in the wear-resistant layer corresponding to the adsorption holes and the positioning piece.

Further, the outside of front end portion is provided with the recess, and the inboard of wearing layer is provided with the flange that is used for imbedding in the recess.

The utility model has the advantages that: the novel punch for the riveting press of the utility model has the advantages that the punch body is connected with the punch rod through the locking sleeve, when the front end part of the punch body is worn or damaged, the locking sleeve can be loosened to realize the independent replacement of the punch body; then the punch body is tightly locked on the punch rod through the locking sleeve, after the punch body is matched with the punch rod, the second air passage corresponds to the first air passage so as to adsorb the nut when vacuum negative pressure adsorption is carried out through the second air passage, and a connecting hole communicated with the first air passage is arranged in the radial direction of the punch rod and is used for connecting a vacuum adsorption pipeline; and the matching part of the punch body and the conical head of the punch rod form conical matching, and the locating is carried out through the matching of the locating groove and the locating boss, so that the punch body can be effectively prevented from rotating relative to the punch rod when the locking sleeve is screwed, the sealing ring is prevented from being worn, the sealing performance is ensured, and the influence on negative pressure adsorption through the air duct can be avoided.

Drawings

The invention is further described with reference to the following figures and examples.

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

fig. 2 is a schematic structural view of the middle punch body of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

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

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments 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, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a riveting press is with novel drift.

Referring to fig. 1 and 2, fig. 1 is a schematic view of the overall structure of the present invention, and fig. 2 is a schematic view of the structure of the middle punch body of the present invention; as shown in the figure: the novel punch for the riveting press comprises a punch stem 1, a punch body 3 and a locking sleeve 4, wherein a first air duct 2 is arranged on the punch stem 1, the punch body 3 comprises a front end part 3-1 and a matching part 3-2, the matching part 3-2 is a taper sleeve structure with the cross section gradually enlarged from the joint of the front end part 3-1 to the tail end, the end part of the punch stem 1 is provided with a taper head which is inserted into the matching part 3-2, the outer side of the taper head is tightly attached to the inner side of the matching part 3-2, and the front end part 3-1 of the punch body 3 is axially provided with a second air duct 5 communicated with the first air duct 2 and at least two adsorption holes 6 communicated with the second air duct 5 and penetrating through the tail end of the front end part 3-1; a sealing ring 11 with a conical structure is arranged between the outer conical surface of the lower end part of the punch 1 and the inner conical surface of the matching part 3-2, the existence of the sealing ring 11 enhances the sealing performance, a positioning groove 3-3 is formed at the upper edge of the matching part 3-2, and a positioning boss (not shown in the figure) matched with the positioning groove 3-3 is formed at the corresponding position outside the lower end of the punch 1; the locking sleeve 4 comprises a sleeve-connecting part 4-1 (namely, the shape of the inner side surface of the sleeve-connecting part 4-1 is a conical surface) the inner side surface of which is matched with the shape of the outer side surface of the matching part 3-2, and a sleeve body part 4-2 which is integrally formed with the sleeve-connecting part 4-1 and is used for being in threaded connection with the outer side of the punch 1. The punch body 3 is matched with the conical head of the punch rod 1 through the matching part 3-2, then the punch body 3 is tightly locked on the punch rod 1 through the locking sleeve 4, after the punch body 3 is matched with the punch rod 1, the second air vent channel 5 corresponds to the first air vent channel 2 so as to adsorb a nut when vacuum negative pressure adsorption is carried out through the second air vent channel 5, and a connecting hole 8 communicated with the first air vent channel is arranged in the radial direction of the punch rod and is used for connecting a vacuum adsorption pipeline; the positioning groove 3-3 is matched with the positioning boss for positioning, so that the punch body 1 can be effectively prevented from rotating relative to the punch rod 1 when the locking sleeve 4 is screwed, the sealing ring 11 is prevented from being abraded, and the sealing performance is ensured.

In the embodiment, the nut positioning device further comprises a positioning piece 7 which is arranged on the front end part 3-1 and used for positioning the nut, and the positioning piece 7 is arranged by being surrounded by the adsorption hole 6; the positioning piece is used for being inserted into an inner hole of the nut in advance when the nut is adsorbed, so that the adsorption hole 6 arranged around the positioning piece can well adsorb the nut.

In the present embodiment, the inner diameter of the second air duct 5 is smaller than the inner diameter of the first air duct 2. The end of the first air duct 2 forms a constricted section communicating with the first air duct 2 and having an inner diameter gradually reduced. The outer side of the front end part 3-1 is also coated with a wear-resistant layer 9, and corresponding holes are respectively arranged on the wear-resistant layer 9 corresponding to the adsorption holes 6 and the positioning piece. The outer side of the front end part 3-1 is provided with a groove, and the inner side of the wear-resistant layer is provided with a flange 10 which is embedded in the groove.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a riveting press is with novel drift which characterized in that: the method comprises the following steps:

the punching rod is provided with a first air duct;

the punch body comprises a front end part and a matching part, the matching part is of a taper sleeve structure with the cross section gradually enlarged from the joint with the front end part to the tail end, the end part of the punch rod is provided with a taper head which is used for being inserted into the matching part, the outer side of the taper head is tightly attached to the inner side of the matching part, and the front end part of the punch body is axially provided with a second air passage communicated with the first air passage and at least two adsorption holes communicated with the second air passage and penetrating through the tail end of the front end part; a sealing ring with a conical structure is arranged between the outer conical surface of the lower end part of the punch rod and the inner conical surface of the matching part, a positioning groove is formed at the edge of the upper part of the matching part, and a positioning boss matched with the positioning groove is formed at the corresponding position outside the lower end of the punch rod;

2. The novel punch for a riveter according to claim 1, characterized in that: the nut positioning device further comprises a positioning piece arranged on the front end portion and used for positioning the nut, and the positioning piece is arranged in a surrounding mode through the adsorption hole.

3. The novel punch for a riveter according to claim 2, characterized in that: the second airway has an inner diameter that is less than the inner diameter of the first airway.

4. The novel punch for a riveter according to claim 3, characterized in that: the tail end of the first air channel is formed into a contraction section which is communicated with the first air channel and has a gradually reduced inner diameter.

5. The novel punch for a riveter according to claim 4, characterized in that: the outer side of the front end part is further coated with a wear-resistant layer, and corresponding holes are formed in the wear-resistant layer and correspond to the adsorption holes and the positioning piece respectively.

6. The novel punch for a riveter according to claim 5, characterized in that: the outside of front end portion is provided with the recess, the inboard of wearing layer is provided with the flange that is used for imbedding in the recess.