CN210754357U

CN210754357U - Ejector rod connecting device for punching

Info

Publication number: CN210754357U
Application number: CN201921762302.7U
Authority: CN
Inventors: 李江帅; 张立军; 张稳成; 程富波; 冯德龙; 康明付
Original assignee: Henan Huifeng Tube Industry Co ltd
Current assignee: Henan Huifeng Tube Industry Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-16
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a mandril connecting device for perforation, which comprises a first connecting disc and a second connecting disc, wherein a guide post with an axis coincident with the axis of the first connecting disc is fixed on one side surface of the first connecting disc, a plurality of first notches are uniformly distributed on the outer edge of the first connecting disc along the axis of the first connecting disc, a blind hole matched with the guide post is arranged on one side surface of the second connecting disc, second notches with the same number as the first notches are arranged on the outer edge of the second connecting disc along the axis of the second connecting disc, and connecting blocks with two ends respectively fixedly connected with the first connecting disc and the second connecting disc are arranged in the corresponding first notches and the corresponding second notches; the guide post and the blind hole can provide good location for first connection pad and second connection pad, and the connecting block volume bolt is big a lot, has very high intensity, and shearing force in the use can not make the connecting block fracture or warp, and the security performance is high.

Description

Ejector rod connecting device for punching

Technical Field

The utility model belongs to the technical field of ejector pin dolly auxiliary assembly, especially, relate to a perforation is with ejector pin connecting device.

Background

The mandril trolley is one of important devices of a punching unit in a modern seamless steel pipe hot rolling production line. The push rod trolley mainly plays the roles of moving (drawing) the push rod (when outputting the capillary) and supporting the push rod to fix the position of the push head. In the process of punching, the ejector rod bears huge axial force from the ejector head, the ejector head and the ejector rod rotate together with a rolled piece, the rotating speed of the ejector rod is 5-6 times higher than that of a roller, and great impact is generated at the moment of contact between the tube blank and the ejector head.

Ejector pin and ejector pin dolly are connected and are adopted a plurality of bolts to connect usually, though connect simply, because the ejector pin carries out the rotation of higher speed, because great shearing force, the bolt can appear warping and set up cracked condition, for actual production has taken very big potential safety hazard, when the ejector pin was installed to the exclusive use bolt, inconvenient location.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a perforation is with ejector pin connecting device, fine solution connecting bolt warp or the problem that the fracture brought potential safety hazard and inconvenient location.

In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides a perforation is with ejector pin connecting device, includes first connection pad and second connection pad, a first connection pad side is fixed with the guide post of axis and first connection pad axis coincidence, and the outer fringe of first connection pad has a plurality of first breachs along its axis equipartition, second connection pad side is seted up with guide post matched with blind hole, and the outer fringe of second connection pad has the second breach the same with first breach quantity along its axis, is provided with the connecting block of both ends respectively with first connection pad and second connection pad fixed connection in corresponding first breach and the second breach.

Further, the connecting block including inlay establish with first breach and the intraoral connecting portion of second breach, the both ends of connecting portion all are fixed with the connecting plate, on the connecting plate all was fixed in the side that first connection pad and second connection pad deviate from each other.

Furthermore, a through hole is formed in the connecting plate, threaded holes are formed in the first connecting disc and the second connecting disc, and a bolt matched with the threaded holes penetrates through the through hole.

Furthermore, a straight groove is formed in the opposite side faces of the first connecting disc and the second connecting disc, and a key arranged in the straight groove is arranged between the first connecting disc and the second connecting disc.

Furthermore, first breach, second breach and connecting block all are provided with 4.

Compared with the prior art, the utility model discloses following beneficial effect has: when the first connecting disc and the second connecting disc are installed, the guide columns and the blind holes can provide good positioning for the first connecting disc and the second connecting disc, and subsequent connecting blocks can be conveniently installed; the connecting block is embedded into the first notch and the second notch, the connecting block is fixed on the first connecting disc and the second connecting disc, the volume of the connecting block along the circumference of the first connecting disc and the circumference of the second connecting disc is much larger than that of the bolt, the connecting block has high strength, the shearing force in the using process cannot break or deform the connecting block, and the safety performance is high.

Drawings

Fig. 1 is an exploded view in one direction of the present invention;

fig. 2 is an exploded view of the present invention in another direction.

In the figure: 1. a first splice tray; 2. a second connecting disc; 3. a guide post; 4. a first notch; 5. blind holes; 6. a second notch; 7. connecting blocks; 8. a through hole; 9. a threaded hole; 10. a bolt; 11. a straight slot; 12. a key; 71. a connecting portion; 72. a connecting plate.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-fig. 2, a perforation is with ejector pin connecting device, including first connection pad 1 and second connection pad 2, 1 side integrated into one piece of first connection pad has axis and the guide post 3 of 1 axis coincidence of first connection pad, the outer fringe of first connection pad 1 has a plurality of first breachs 4 along its axis equipartition, 2 side of second connection pad have been seted up with guide post 3 matched with blind hole 5, the outer fringe of second connection pad 2 has the second breach 6 the same with 4 quantity of first breach along its axis, be provided with both ends respectively with first connection pad 1 and 2 dish fixed connection's connecting block 7 of second connection in corresponding first breach 4 and the second breach 6.

Specifically, connecting block 7 is including inlaying establish with first breach 4 and the connecting portion 71 in the second breach 6, the equal integrated into one piece in both ends of connecting portion 71 has connecting plate 72, and connecting plate 72 all is fixed in on the side that first connection pad 1 and second connection pad 2 deviate from each other, and is further, seted up through-hole 8 on the connecting plate 72, set up threaded hole 9 on first connection pad 1 and the second connection pad 2, wear to be equipped with in the through-hole 8 with threaded hole 9 matched with bolt 10, fix connecting block 7 on first connection pad 1 and second connection pad 2 through bolt 10 and threaded hole 9, connect first connection pad 1 and second connection pad 2.

Further, a word groove 11 has been seted up to first connection pad 1 and 2 opposite flanks of second connection pad, has between first connection pad 1 and the second connection pad 2 to set up the key 12 in a word groove 11, can further improve the utility model discloses anti shearing force improves the safety in utilization ability.

When the utility model is implemented, the number of the first notches 4, the number of the second notches 6 and the number of the connecting blocks 7 are 4, and when the first connecting disc 1 and the second connecting disc 2 are installed, the guide posts 3 and the blind holes 5 can provide good positioning for the first connecting disc 1 and the second connecting disc 2, so that the subsequent installation of the connecting blocks 7 is facilitated; the connecting block 7 is embedded into the first notch 4 and the second notch 6, the connecting block 7 is fixed on the first connecting disc 1 and the second connecting disc 2, the volume of the connecting block 7 along the circumference of the first connecting disc 1 and the circumference of the second connecting disc 2 are much larger than that of a bolt, the connecting block has high strength, the connecting block 7 cannot be broken or deformed by shearing force in the using process, and the safety performance is high.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a perforation is with ejector pin connecting device which characterized in that: including first connection pad (1) and second connection pad (2), first connection pad (1) side is fixed with guide post (3) of axis and first connection pad (1) axis coincidence, and the outer fringe of first connection pad (1) has a plurality of first breach (4) along its axis equipartition, second connection pad (2) side is seted up with guide post (3) matched with blind hole (5), and the outer fringe of second connection pad (2) has second breach (6) the same with first breach (4) quantity along its axis, is provided with connecting block (7) that both ends respectively with first connection pad (1) and second connection pad (2) fixed connection in corresponding first breach (4) and second breach (6).

2. The piercing pin connecting device according to claim 1, wherein: connecting block (7) are including inlaying connecting portion (71) of locating in first breach (4) and second breach (6), the both ends of connecting portion (71) all are fixed with connecting plate (72), and connecting plate (72) all are fixed in on the side that first connection pad (1) and second connection pad (2) deviate from each other.

3. The piercing pin connecting device according to claim 2, wherein: the connecting plate (72) is provided with a through hole (8), the first connecting disc (1) and the second connecting disc (2) are provided with threaded holes (9), and a bolt (10) matched with the threaded holes (9) penetrates through the through hole (8).

4. The piercing pin connecting device according to claim 1, wherein: a straight groove (11) is formed in the opposite side faces of the first connecting disc (1) and the second connecting disc (2), and a key (12) arranged in the straight groove (11) is arranged between the first connecting disc (1) and the second connecting disc (2).

5. The piercing pin connecting device according to claim 1, wherein: first breach (4), second breach (6) and connecting block (7) all are provided with 4.