CN217665823U

CN217665823U - Long service life's metal product mould drift

Info

Publication number: CN217665823U
Application number: CN202221084988.0U
Authority: CN
Inventors: 郭鑫; 赵星宇
Original assignee: Yizheng Precision Machinery Yixing Co ltd
Current assignee: Yizheng Precision Machinery Yixing Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-10-28
Anticipated expiration: 2032-05-09

Abstract

A long-service-life metal product die punch belongs to the technical field of die parts and comprises a punch body, wherein the punch body is formed by sequentially connecting a fixing head, a bearing shaft, a buffer shaft and a punching shaft from one end to the other end; the buffer shaft and the stamping shaft are fixedly connected integrally, the stamping shaft is provided with a stamping head far away from the buffer shaft end, and the edge angle of the stamping head is formed by one-time grinding; the end face of the bearing shaft connected with the buffer shaft is provided with a bearing groove, the end face of the buffer shaft connected with the bearing shaft is provided with a connecting shaft, and the connecting shaft is inserted into the bearing groove and limited by a fastening ring. The arc-shaped buffer shaft and the clamping shaft are arranged, so that the mutual impact force between the structures can be effectively buffered, and the damage degree is reduced; the edge corner of the punching head is formed by one-time grinding, so that the punching head is impact-resistant and beneficial to prolonging the service life.

Description

Long service life's metal product mould drift

Technical Field

The utility model relates to a mould spare part technical field, more specifically relates to a long service life's metal product mould drift.

Background

The punch refers to a metal part on a stamping die in a machine tool, and is called a punch rod, a punch pin or a punch, and is installed on the stamping die to perform continuous punching, stamping and breaking operation, so that a processed material is separated or plastically deformed, and a required finished product or a semi-finished product is obtained.

In order to prolong the service life of the punch and facilitate the use of the punch, some auxiliary structures are usually added on the punch to achieve the effect, for example, the punch (CN 202011227368.3) of a stamping die comprises the punch, a piston rod, a cylinder barrel, a fixed seat, a first switch air release valve and a second switch air release valve; one end of the punch is fixedly connected with the piston rod; the fixed seat is fixedly connected with the stamping die; the punch is fixed on the fixed seat; the piston rod divides the cylinder barrel into a first air chamber and a second air chamber; a second switch air release valve is arranged at the opening of the first air chamber; a first switch air release valve is arranged at the opening of the second air chamber; the first switch air release valve is fixedly connected with a workshop compressed air pipe; and the second switch air release valve is fixedly connected with a workshop compressed air pipe. The invention is suitable for the production and manufacturing field of automobile outer surface stamping covering parts, and can effectively optimize the problem of frequent disassembly and assembly of the die punch by controlling the working and hidden states of the punch through the gas circuit after being fixed on a stamping die.

The use that current mould drift made things convenient for the drift or promote the life of drift through installing additional auxiliary structure, make drift overall structure become more complicated owing to install additional after the structure, the fixed fit that lies in the mould also has higher requirement, need to spend great cost and carry out the mould transformation, and the installation of structure often only carries out better protection when out of work to the drift, can not play the protecting effect when the drift is at the during operation, consequently can't follow drift itself and start, through the structure, the improvement on the material promotes the life of drift.

SUMMERY OF THE UTILITY MODEL

The utility model provides a metal product mold punch with long service life, which is provided with arc-shaped buffer shafts, clamping shafts and other structures, so as to effectively buffer the mutual impact force among the structures and reduce the damage degree; the edge corner of the punching head is formed by one-time grinding, so that the punching head is impact-resistant and beneficial to prolonging the service life.

In order to achieve the above object, the utility model provides a following technical scheme: a long-service-life metal product die punch comprises a punch body, wherein the punch body is formed by sequentially connecting a fixing head, a bearing shaft, a buffer shaft and a punching shaft from one end to the other end; the buffer shaft and the stamping shaft are fixedly connected integrally, the stamping shaft is provided with a stamping head far away from the buffer shaft end, and the edge angle of the stamping head is formed by one-time grinding; the end face of the bearing shaft connected with the buffer shaft is provided with a bearing groove, the end face of the buffer shaft connected with the bearing shaft is provided with a connecting shaft, and the connecting shaft is inserted into the bearing groove and limited by a fastening ring. The working principle is as follows: firstly, the punch body is arranged in a die through the fixing head, the punch body is fixed well by the clamping shaft, when the punch body works normally, the punching head at the top of the punching shaft can punch and form a metal sheet, the buffering shaft can play a role of buffering, the impact damage to the punch body caused by resonance generated by the direct connection of the bearing shaft and the punching shaft is avoided, the spring arranged in an embedded manner in the bearing shaft can play a role of reinforcing when the bearing shaft is subjected to injection molding, the compactness of the bearing shaft structure is enhanced, and the strength of the bearing shaft is favorably improved; secondly, through connecting axle and accepting the groove, under the fastening of tighrening ring and dismouting effect for it can the split with the punching press axle to accept the axle, is convenient for maintain, change the punching press axle, finally promotes the life of drift body through above structure.

Further preferred scheme: the buffer shaft and the side surface of the clamping shaft are inwards concave towards the central axis to form an arc-shaped surface, and the arc-shaped surface shrinks along the direction from the fixed head to the stamping shaft to be smaller. The buffer shaft and the clamping shaft are arranged in the shape of an arc surface with the shaft diameter decreasing along the stamping pressure direction, the impact force can be buffered by utilizing the arc surface structure, and the direct contact between the structures and the direct impact damage of the junction structure are avoided.

Further preferred scheme: the connecting shaft comprises a large-diameter shaft body and a small-diameter shaft body, the large-diameter shaft body faces the inside of the bearing groove, the large-diameter shaft body is in seamless movable connection with the groove wall of the bearing groove, and the length of the connecting shaft is the same as the depth of the bearing groove. Set up type connecting axle and connecting axle length and accepting the groove degree of depth the same, do benefit to the cooperation between the two and connect, big footpath axis body and accepting the seamless movable joining of groove cell wall can avoid the space to produce vibrations to be constructed the damage to the knot.

Further preferred scheme: the outside of connecting axle path axis body and big footpath axis body and path axis body are connected the face and are all set up sealed the pad, fastening ring inside wall and sealed seamless swing joint of pad. The sealing gasket is arranged, so that the sealing effect can be achieved, the fastening ring can be separated from the connecting shaft, and damage caused by mutual extrusion is avoided.

Further preferred scheme: the inner wall of the receiving groove is provided with a thread line to form an internal thread wall, the outer side of the fastening ring body is provided with an external thread line, the fastening ring is screwed with the internal thread wall in the receiving groove, and the lengths of the internal thread wall, the fastening ring and the shaft body with the small diameter of the connecting shaft are the same. Set up internal thread wall and external thread line, can utilize the dismouting of the convenient tighrening ring of helicitic texture, the axis body length of internal thread wall, tighrening ring, connecting axle path is the same, can guarantee to connect the unity and the regularity of fixed back structure.

Further preferred scheme: the bottom of the bearing groove is positioned in the bearing shaft body, a bearing disc is arranged in the bearing shaft body, a hemispherical groove is formed in the surface of the bearing disc, a hemispherical convex block is arranged on the end face of the large-diameter shaft body of the connecting shaft corresponding to the groove, and the convex block and the groove are connected in an embedded mode in a seamless mode. The bearing plate is arranged to bear the extrusion force between the connecting shaft and the bearing shaft, the groove and the lug are arranged to increase the contact area, the pressure is further reduced, and the protection structure is utilized.

Further preferred scheme: the outer sides of the buffer shaft, the stamping shaft and the bearing shaft are all subjected to mirror polishing treatment and are provided with wear-resistant layers in a surrounding mode. Set up the wearing layer and can increase the wearability of axis body structure, can use repeatedly, do benefit to the life of extension drift body.

The utility model provides a long service life's metal product mould drift has following beneficial effect:

1. the utility model is provided with arc-shaped buffer shafts, clamping shafts and other structures, which can effectively buffer the mutual impact force between the structures and reduce the damage degree; the edge and the edge of the stamping head are formed by one-time grinding, so that the stamping head is impact-resistant and beneficial to prolonging the service life.

2. The utility model discloses the advantage lies in setting up the connecting axle, accepting groove and tighrening ring to the cooperation sets up internal thread wall and external thread line, can utilize the dismouting that the helicitic texture makes things convenient for the tighrening ring, and the hedge pressure head of being convenient for is maintained, is changed.

Drawings

Fig. 1 is a schematic view of the external overall front view structure of the present invention.

Fig. 2 is a schematic longitudinal sectional structural view of the present invention.

Fig. 3 is a schematic view of the connection structure of the receiving shaft and the buffering shaft of the present invention.

Fig. 4 is a schematic view of the circular cross-section structure of the bearing shaft of the present invention.

Fig. 5 is a schematic view of the circular cross-section structure of the receiving groove of the present invention.

Fig. 6 is an enlarged schematic view of fig. 3A according to the present invention.

In FIGS. 1-6: 1. a punch body; 2. a buffer shaft; 3. stamping a shaft; 4. a fixed head; 5. clamping a shaft; 6. a bearing shaft; 7. a spring; 8. a connecting shaft; 801. a bump; 802. a gasket; 9. an arc-shaped surface; 10. a wear resistant layer; 11. punching a head; 12. a fastening ring; 13. a carrier tray; 1301. a groove; 14. a receiving groove; 1401. an internally threaded wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b):

please refer to fig. 1 to 6:

a long-service-life metal product die punch is characterized in that a punch body 1 is formed by sequentially connecting a fixing head 4, a bearing shaft 6, a buffering shaft 2 and a punching shaft 3 from one end to the other end, mirror polishing treatment is carried out on the outer sides of the buffering shaft 2, the punching shaft 3 and the bearing shaft 6, and a wear-resistant layer 10 is arranged in a surrounding mode, a clamping shaft 5 is arranged at the connecting end of the fixing head 4 and the bearing shaft 6, the side faces of the buffering shaft 2 and the clamping shaft 5 are inwards concave towards the central axis side to form an arc-shaped face 9, the arc-shaped face 9 shrinks and becomes small along the direction from the fixing head 4 to the punching shaft 3, the two ends of the clamping shaft 5 are fixedly connected with the fixing head 4 and the bearing shaft 6 in an integrated mode, and the bearing shaft 6 is a solid shaft and a spring 7 arranged along the length direction of the bearing shaft 6 is embedded in the solid shaft; the buffer shaft 2 and the stamping shaft 3 are fixedly connected integrally, the end of the stamping shaft 3, which is far away from the buffer shaft 2, is provided with a stamping head 11, and the edge of the stamping head 11 is formed by one-time grinding; the end face of the bearing shaft 6 connected with the buffer shaft 2 is provided with a bearing groove 14, the end face of the buffer shaft 2 connected with the bearing shaft 6 is provided with a connecting shaft 8, the connecting shaft 8 is inserted into the bearing groove 14 and limited by a fastening ring 12, the connecting shaft 8 comprises a large-diameter shaft body and a small-diameter shaft body, and the large-diameter shaft body faces the inside of the bearing groove 14.

The large-diameter shaft body of the connecting shaft 8 is in seamless movable connection with the wall of the bearing groove 14, the length of the connecting shaft 8 is the same as the depth of the bearing groove 14, sealing gaskets 802 are arranged on the outer side of the small-diameter shaft body of the connecting shaft 8 and the connecting surface of the large-diameter shaft body and the small-diameter shaft body, and the inner side wall of the fastening ring 12 is in seamless movable connection with the sealing gaskets 802; the inner wall of the receiving groove 14 is provided with a thread forming an internal thread wall 1401, the outer side of the ring body of the fastening ring 12 is provided with an external thread, the fastening ring 12 is screwed with the internal thread wall 1401 in the receiving groove 14, and the lengths of the internal thread wall 1401, the fastening ring 12 and the shaft body of the connecting shaft 8 with small diameter are all the same.

A bearing disc 13 is arranged at the bottom of the bearing groove 14 and positioned in the shaft body of the bearing shaft 6, a hemispherical groove 1301 is formed in the surface of the bearing disc 13, a hemispherical convex block 801 is arranged on the end face of the large-diameter shaft body of the connecting shaft 8 corresponding to the groove 1301, and the convex block 801 is in seamless embedded connection with the groove 1301.

The working principle is as follows: firstly, the punch body 1 is installed in a die through the fixing head 4, the punch body 1 is fixed well by the clamping shaft 5, when the punch body 1 works normally, the punching head 11 at the top of the punching shaft 3 can punch and form a metal sheet, the buffering shaft 2 can play a role of buffering, the impact damage to the punch body 1 caused by the resonance generated by the direct connection of the bearing shaft 6 and the punching shaft 3 is avoided, the spring 7 arranged in an embedded manner of the bearing shaft 6 can play a role of reinforcing when the bearing shaft 6 is subjected to injection molding, the compactness of the structure of the bearing shaft 6 is enhanced, and the strength of the bearing shaft is favorably improved; secondly, through connecting axle 8 and accepting groove 14, under the fastening of tighrening ring 12 and dismouting effect for it can the split to accept axle 6 and punching press axle 3, is convenient for maintain, change punching press axle 3, finally promotes the life of drift body 1 through above structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A long-life metal product die punch comprising a punch body (1), characterized in that: the punch head body (1) is formed by sequentially connecting a fixing head (4), a bearing shaft (6), a buffer shaft (2) and a punching shaft (3) from one end to the other end, a clamping shaft (5) is arranged at the connecting end of the fixing head (4) and the bearing shaft (6), the two ends of the clamping shaft (5) are fixedly connected with the fixing head (4) and the bearing shaft (6) in an integrated manner, the bearing shaft (6) is a solid shaft, and springs (7) which are arranged along the length direction of the bearing shaft (6) are embedded in the bearing shaft (6); the buffer shaft (2) and the stamping shaft (3) are fixedly connected into a whole, the end of the stamping shaft (3) far away from the buffer shaft (2) is provided with a stamping head (11), and the edge angle of the stamping head (11) is formed by one-time grinding; the end face of the bearing shaft (6) connected with the buffer shaft (2) is provided with a bearing groove (14), the end face of the buffer shaft (2) connected with the bearing shaft (6) is provided with a connecting shaft (8), and the connecting shaft (8) is inserted into the bearing groove (14) and limited by a fastening ring (12).

2. A long-life metal product die punch as defined in claim 1, wherein: buffering axle (2) with card axle (5) side is to central axis side indent setting to arcwall face (9), and arcwall face (9) become along the direction shrink of fixed head (4) to punching press axle (3) diminishes.

3. A long-life metal product die punch as defined in claim 1, wherein: the connecting shaft (8) comprises a large-diameter shaft body and a small-diameter shaft body, the large-diameter shaft body faces the inside of the bearing groove (14), the large-diameter shaft body is in seamless movable connection with the groove wall of the bearing groove (14), and the length of the connecting shaft (8) is the same as the depth of the bearing groove (14).

4. A long-life metal product die punch as claimed in claim 1, wherein: the outside of the small-diameter shaft body of the connecting shaft (8) and the connecting surface of the large-diameter shaft body and the small-diameter shaft body are both provided with sealing gaskets (802), and the inner side wall of the fastening ring (12) is in seamless movable connection with the sealing gaskets (802).

5. A long-life metal product die punch as claimed in claim 4, wherein: the inner wall of the bearing groove (14) is provided with a thread forming inner thread wall (1401), the outer side of the ring body of the fastening ring (12) is provided with an outer thread line, the fastening ring (12) is screwed with the inner thread wall (1401) in the bearing groove (14), and the lengths of the inner thread wall (1401), the fastening ring (12) and the shaft body with the small diameter of the connecting shaft (8) are all the same.

6. A long-life metal product die punch as claimed in claim 1, wherein: the bottom of the bearing groove (14) is positioned in the shaft body of the bearing shaft (6) and is internally provided with a bearing disc (13), the surface of the bearing disc (13) is provided with a plurality of hemispherical grooves (1301), the end face of the large-diameter shaft body of the connecting shaft (8) is provided with a hemispherical bump (801) corresponding to the groove (1301), and the bump (801) is seamlessly embedded and connected with the groove (1301).

7. A long-life metal product die punch as claimed in claim 1, wherein: the outer sides of the buffer shaft (2), the stamping shaft (3) and the bearing shaft (6) are all subjected to mirror polishing treatment and are surrounded by the wear-resistant layer (10).