CN210080625U

CN210080625U - Flexible punch arm for forging

Info

Publication number: CN210080625U
Application number: CN201920893589.0U
Authority: CN
Inventors: 章毅; 唐亚东; 程忠; 吴海建; 周广和; 许建; 许映昆; 张加红; 许洁华; 王丽华
Original assignee: Nantong Changyuan Heavy Machinery Co Ltd
Current assignee: Nantong Changyuan Heavy Machinery Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-18
Anticipated expiration: 2029-06-14

Abstract

The utility model provides a forge and use flexible drift arm, relate to forging equipment technical field, including the pressure roof beam, locate last hammering block and the upper punch of pressure roof beam below, it corresponds the setting from top to bottom with the lower hammering block on the underbeam to go up, go up and leave the clearance between hammering block and the upper punch, the drift arm is connected to the upper punch, the one end and the upper punch of drift arm are connected, the other end of drift arm passes through the arm seat and is connected with the mount pad of cup jointing on the press stand, the drift arm passes through the pivot and is connected with the arm seat, install first adjusting screw and second adjusting screw on the arm seat, the bottom and the drift arm top contact of first adjusting screw. The utility model divides the integral type punch arm into a punch arm and an arm seat, and the punch arm can rotate up and down through the assembly of the rotating shaft, thereby avoiding the deformation phenomenon of the punch arm; adjusting a gap between an upper plane of the upper punch and a lower plane of the upper anvil by adopting a first adjusting screw rod so as to facilitate the turning-in and turning-out of the upper punch; the elasticity of a disc spring on the second adjusting screw rod is adjusted to enable the punch arm to rotate around the rotating shaft to reset, and the flexible buffer is not deformed by bending force.

Description

Flexible punch arm for forging

Technical Field

The utility model relates to a forging equipment technical field.

Background

At present, the forged ring is widely applied to equipment in the industries of bearing manufacturing industry, wind power generation equipment, chemical equipment and the like. The large-scale ring forging is completed by the ring rolling mill, and the ring must be manufactured before the ring rolling mill so as to adapt to the ring rolling mill. A key punching process is provided in the ring manufacturing process, and blank manufacturing and punching of the large ring piece are all completed on a press.

In the punching on a press, after forging stock is upset, firstly, a punch with a certain weight is mixed and thrown onto the upset forging stock by a manual work (2-4 people) by using a fire tongs, the center of a circle is aligned by naked eyes, and a hole at the center is punched by the upper punch under a pressing beam. However, the weight of the punch increases with the increase in the size of the workpiece and the diameter of the punched hole, and manual work cannot be done. The method has the advantages that the labor intensity of workers is high, the workers can contact the high-temperature blank in a close range, the potential safety hazard is high, the center hole is positioned by naked eyes, the probability of eccentricity and deflection is high, and the yield is low.

In the prior art, a punch arm is adopted to rotate a punch to the center of a forging stock, a centering mechanism is matched to complete centering of the punch, the punch needs to be rotated into the center of a workpiece, a gap of about 5mm must be reserved between the upper plane of an upper punch and the lower plane of an upper anvil, when a pressing beam drives the upper punch to press downwards, the upper punch contacts the forging stock firstly, and the upper plane of the upper punch and the lower plane of the upper anvil are laminated and then pressed downwards to complete a punching process. The integral punch arm can deform when being used for many times, and the integral punch arm deforms and cannot recover after being used for many times, so that the punch head is easy to collide with the upper anvil when rotating in and out, and subsequent continuous use cannot be met.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model aims at providing a forge and use flexible punch arm can avoid the punch arm to appear the deformation phenomenon, has solved because of punch arm compression deformation lead to the upper punch on the plane with last hammering block under the plane zero clearance change over to the problem of hitting mutually when rolling over to the roll-out, has satisfied subsequent continuous use.

The utility model discloses a press the roof beam, locate last hammering block and the upper punch of press the roof beam below, it corresponds the setting from top to bottom to go up the lower hammering block on hammering block and the underbeam, it leaves the clearance to go up between hammering block and the upper punch, the first arm of punching is connected to the upper punch, the one end and the upper punch of punching arm are connected, the other end of punching arm passes through the arm seat and is connected with the mount pad of cup jointing on the press stand, the punching arm is connected with the arm seat through the pivot, install first adjusting screw and second adjusting screw on the arm seat, first adjusting screw's bottom and punching arm top contact, second adjusting screw runs through arm seat and punching arm.

Further, the gap between the lower surface of the upper anvil and the upper surface of the upper punch is 3-5 mm.

Furthermore, a disc spring is sleeved on the second adjusting screw, a second adjusting nut is arranged above the disc spring, and a gasket is arranged below the disc spring.

Furthermore, the number of the first adjusting screw rods is two, and the two first adjusting screw rods are arranged at intervals; and a first tightening nut is sleeved on the first adjusting screw rod.

Furthermore, the mounting seat consists of two semicircular seats which are connected through bolts; and a semicircular gear for rotating the installation seat is arranged in the installation seat groove.

The utility model divides the integral type punch arm into a punch arm and an arm seat, and the punch arm can rotate up and down through the assembly of the rotating shaft, thereby avoiding the deformation phenomenon of the punch arm; adjusting a gap between an upper plane of the upper punch and a lower plane of the upper anvil by adopting a first adjusting screw rod so as to facilitate the turning-in and turning-out of the upper punch; the elasticity of the disc spring on the second adjusting screw is adjusted to enable the punch arm to rotate around the rotating shaft to reset, and the flexible buffer is not deformed by bending force, so that the problem of collision between the upper surface of the upper punch and the lower surface of the upper anvil when the upper punch and the lower anvil are rotated out without clearance due to the fact that the punch arm is deformed by pressure can be well solved, subsequent continuous use is met, and production efficiency is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 2.

In the figure: 1 pressing beam, 2 upper anvil, 3 upper punch, 4 lower beam, 5 lower anvil, 6 punch arm, 7 arm seat, 8 press upright post, 9 mounting seat, 10 rotating shaft, 11 first adjusting screw, 12 second adjusting screw, 13 disc spring, 14 second adjusting nut, 15 gasket, 16 semicircular seat, 17 bolt, 18 first tightening nut, 19 workpiece and 20 semicircular gear.

Detailed Description

As shown in fig. 1-3, a flexible punch arm for forging includes a press beam 1, an upper anvil 2 and an upper punch 3 disposed below the press beam 1, the upper anvil 2 and a lower anvil 5 on a lower beam 4 are disposed in a vertically corresponding manner, a gap is left between the upper anvil 2 and the upper punch 3, the upper punch 3 is connected to a punch arm 6, one end of the punch arm 6 is connected to the upper punch 3, the other end of the punch arm 6 is connected to a mounting seat 9 sleeved on a pressing machine upright post 8 through an arm seat 7, the punch arm 6 is connected to the arm seat 7 through a rotating shaft 10, a first adjusting screw 11 and a second adjusting screw 12 are mounted on the arm seat 7, the bottom of the first adjusting screw 11 contacts with the top of the punch arm 6, and the second adjusting screw 12 penetrates through the arm seat 7 and the punch arm 6. Wherein, the clearance between the lower surface of the upper anvil 2 and the upper surface of the upper punch 3 is 3-5 mm.

In the embodiment, firstly, the integral type punch arm is divided into the punch arm 6 and the arm seat 7, and the punch arm and the arm seat are assembled through the rotating shaft 10 and can rotate up and down, so that the phenomenon of deformation of the punch arm is avoided; next, with the bottom of the first adjusting screw 11 in abutting contact with the punch arm 6, the gap between the upper surface of the upper punch 3 and the lower surface of the upper anvil 2 is adjusted by the first adjusting screw 11, so as to facilitate the rotation in and out of the upper punch 3.

Specifically, the second adjusting screw 12 is sleeved with a disc spring 13, a second adjusting nut 14 is arranged above the disc spring 13, and a gasket 15 is arranged below the disc spring 13.

In the embodiment, the elasticity of the disc spring 13 on the second adjusting screw 12 is adopted to enable the punch arm 6 to rotate around the rotating shaft 10 for resetting, and the flexible buffer is not deformed by bending force, so that the problem of collision between the upper surface of the upper punch and the lower surface of the upper anvil when the punch arm rotates out without clearance due to compression deformation can be well solved, the subsequent continuous use is met, and the production efficiency is effectively improved. Here, by adjusting the position of the second adjusting screw 12 by the second adjusting nut 14, different flexible damping forces can be obtained.

Specifically, the number of the first adjusting screw rods 11 is two, and the two first adjusting screw rods 11 are arranged at intervals; the first adjusting screw 11 is sleeved with a first tightening nut 18.

In this embodiment, two first adjusting screws 11 are adopted, and the vertical position of the first adjusting screws 11 is adjusted, so that the gap between the upper surface of the upper punch 3 and the lower surface of the upper anvil 2 can be better adjusted, and the upper punch 3 can be conveniently rotated in and out. The first tightening nut 18 is used for tightening the first adjusting screw 11 to fix the first adjusting screw.

Specifically, the mounting seat 9 is composed of two semicircular seats 16, the two semicircular seats 16 are connected through bolts 17, and a semicircular gear 20 is arranged in a groove of the mounting seat 9.

In this embodiment, the installation seat 9 formed by the two semicircular seats 16 is adopted, so that the installation and the disassembly of the installation seat 9 and the press upright post 8 are more convenient and faster. In practical application, a semicircular groove is formed in the outer circumferential surface of the mounting seat 9, a semicircular gear 20 is arranged in the groove, so that the hydraulic motor can drive the mounting seat to rotate, the rotation angle is about 135 degrees generally, and the rotation angle can be set according to practical use requirements.

The utility model discloses a theory of operation: the pressing beam 1, the upper anvil 2, the upper punch 3, the punch arm 6, the arm seat 7 and the mounting seat 9 of the press drive the pressing beam 1 of the press to move up and down through the lifting of the main oil cylinder of the press above the pressing beam 1, the semi-circular gear 20 in the groove of the mounting seat 9 is driven to rotate through the gear on the hydraulic motor, so that the upper punch 3, the punch arm 6 and the arm seat 7 can rotate around the excircle of the mounting seat 9 around the upright post 8 of the press, when a workpiece 19 needs to be punched, the power and control system rotates the upper punch 3 to the center of the press and the workpiece 19, the press punches a hole by pressing, the upper punch 3 contacts the workpiece 19 firstly, the upper punch 6 rotates around the rotating shaft 10 by lifting, the upper surface of the upper punch 3 is attached to the lower surface of the upper anvil 2 along with the continuous pressing of the pressing beam 1, and then the punching process is completed. Meanwhile, the position of the second adjusting nut 14 is adjusted to obtain different flexible buffer forces.

In addition, it should be noted that the press, the power and control system, etc. involved in the present embodiment are not substantially different from the prior art, and therefore, the structure and the operation principle thereof are not explained in detail herein.

In conclusion, the flexible punch arm for forging divides the integral punch arm into the punch arm and the arm seat, and the punch arm and the arm seat are assembled through the rotating shaft and can rotate up and down, so that the deformation phenomenon of the punch arm is avoided; adjusting a gap between an upper plane of the upper punch and a lower plane of the upper anvil by adopting a first adjusting screw rod so as to facilitate the turning-in and turning-out of the upper punch; the elasticity of the disc spring on the second adjusting screw is adjusted to enable the punch arm to rotate around the rotating shaft to reset, and the flexible buffer is not deformed by bending force, so that the problem of collision between the upper surface of the upper punch and the lower surface of the upper anvil when the upper punch and the lower anvil are rotated out without clearance due to the fact that the punch arm is deformed by pressure can be well solved, subsequent continuous use is met, and production efficiency is effectively improved.

Claims

1. A flexible punch arm for forging comprises a press beam (1), an upper anvil (2) and an upper punch (3) which are arranged below the press beam (1), the upper anvil (2) and the lower anvil (5) on the lower beam (4) are arranged up and down correspondingly, it is characterized in that a gap is reserved between the upper anvil (2) and the upper punch (3), the upper punch (3) is connected with a punch arm (6), one end of the punch arm (6) is connected with the upper punch (3), the other end of the punch arm (6) is connected with a mounting seat (9) sleeved on a press upright post (8) through an arm seat (7), the punch arm (6) is connected with the arm seat (7) through a rotating shaft (10), a first adjusting screw rod (11) and a second adjusting screw rod (12) are arranged on the arm seat (7), the bottom of the first adjusting screw rod (11) is contacted with the top of the punch arm (6), the second adjusting screw rod (12) penetrates through the arm seat (7) and the punch arm (6).

2. A forging flexible punch arm according to claim 1, characterized in that the clearance between the lower surface of the upper anvil (2) and the upper surface of the upper punch (3) is 3-5 mm.

3. The forging flexible punch arm as recited in claim 1, wherein a disc spring (13) is sleeved on the second adjusting screw (12), a second adjusting nut (14) is arranged above the disc spring (13), and a gasket (15) is arranged below the disc spring (13).

4. The forging flexible punch arm as recited in claim 1, wherein the number of the first adjusting screw rods (11) is two, and the two first adjusting screw rods (11) are arranged at intervals; and a first tightening nut (18) is sleeved on the first adjusting screw rod (11).

5. A forging flexible punch arm according to claim 1, characterized in that the mounting seat (9) is composed of two semicircular seats (16), the two semicircular seats (16) are connected through bolts (17), and a semicircular gear (20) is arranged in a groove of the mounting seat (9).