Self-adaptive centering mechanism for radial forging machine unit

Abstract

The invention discloses a self-adaptive centering mechanism for a radial forging machine unit. The self-adaptive centering mechanism comprises sliding supports, driving oil cylinders, a base and a sliding seat which are symmetrically arranged. Wherein the sliding bracket is fixed on a main machine through a mounting plate and is driven by an oil cylinder to lift along a slide way; the two ends of the base are fixedly connected with sliding supports, and two supporting shafts are arranged on the sliding supports in parallel. The sliding seat is slidably mounted on the supporting shaft, a V-shaped roller bearing blank is arranged on the sliding seat, and a cylindrical roller bearing is mounted on the back surface of the sliding seat; the baffle is fixed to the host and provided with a guide inclined plate. In the working process, the sliding seat is subjected to self-adaptive sliding self-aligning under the thrust of an eccentric blank, and the cylindrical roller bearing is forcibly reset along the baffle inclined plate during falling. The problems that a traditional mechanism is non-adjustable in center and insufficient in rigidity are solved, and adaptability and reset efficiency of a large-tonnage radial forging machine to eccentric blanks are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of forging equipment, in particular to an adaptive centering mechanism for a radial forging machine unit. Background Art

[0002] Diameter forging machines are becoming increasingly popular in the forging industry due to their high production efficiency, high degree of automation, and near-net-shape properties. A centering mechanism is essential during the forging process, serving to center and support the blank, preventing bending and deformation. Currently, there are two types of centering mechanisms on the market: a "scissor" type, which achieves centering by a single cylinder pulling a gear pair; and a "V-type" type, which is symmetrical and has a cantilever beam structure, achieving centering by using two cylinders pulling rollers.

[0003] However, the above two centering mechanisms are only suitable for small-tonnage machines, and the center is not adjustable, which can only center concentric billets, such as round bars and square materials. With the increasing tonnage of radial forging machines and the diversification of customer needs, it is obvious that the above two centering mechanisms cannot meet the current situation.

[0004] To solve the above problems, the present invention proposes an adaptive centering mechanism for a radial forging machine unit based on a "V-shaped" centering mechanism, which has the following advantages: 1) It can meet the centering function of large and medium-sized radial forging machines; 2) The center of the mechanism is adjustable, which can not only meet the centering requirements of forging concentric billets, but also meet the centering requirements of forging eccentric billets, such as rectangular billets; 3) Adaptive centering, the mechanism can be automatically aligned during the forging process and when falling after forging, and does not require additional power. Summary of the Invention

[0005] The purpose of the present invention is to provide an adaptive centering mechanism for a radial forging machine unit, which is adaptable to large tonnage, has an adjustable center, and has a self-resetting function, so as to solve the problems raised in the background technology.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] Preferably, a displacement sensor is provided at the top end of the piston rod of the driving oil cylinder.

[0008] Preferably, a T-shaped sliding bolt is embedded in the sliding bracket, the sliding bolt is in contact with the mounting plate and the cover plate, and a grease lubrication port is provided on the surface of the sliding bolt.

[0009] Preferably, an anti-oxidation shield is provided on the outside of the mounting plate and the sliding bracket.

[0010] Preferably, the bottom of the sliding seat and the sliding bolt are both provided with grease lubrication ports.

[0011] The working process of the present invention is: When the driving cylinder pushes the sliding bracket to lift, the base rises synchronously to make the roller contact the blank; during the forging process, the lateral force generated by the eccentric blank pushes the slide to slide freely along the support shaft, so that the roller is adaptively adjusted to the actual center position of the blank; after forging is completed, the cylinder retracts and drives the mechanism to fall. At this time, the cylindrical roller bearing on the back of the slide contacts the guide inclined plate of the baffle, and under the action of the inclined surface, the slide is forced to slide horizontally until it is reset to the initial center position, completing the zero-power self-correction cycle.

[0012] The adaptive centering function of the present invention allows for finding the forging center when forging eccentric blanks without the need for additional power. The mechanism's initial position is, by default, aligned with the forging center. When the chuck grips the eccentric blank and feeds it, the mechanism rises to contact the blank. During the forging process, the forging force is transmitted, continuously driving the slide until it aligns with the forging center. After forging is complete, the mechanism descends, and during this descent, the cylindrical roller bearing contacts the baffle, driving the slide to its initial position.

[0013] The beneficial effects of the present invention are: (1) The present invention uses rollers to replace traditional rollers, and the contact area is increased by 200%; the base and the left and right sliding brackets are movably connected by bolts to form a closed frame structure, and the rigidity of the mechanism is increased by 40%, which can meet the centering requirements of radial forging machines with a tonnage of thousands of tons.

[0014] (2) The slide of the present invention can slide freely along the support shaft. When forging an eccentric billet (such as a rectangular billet), the lateral force of the billet pushes the slide to automatically move, so that the center of the roller matches the actual center of the billet in real time. No sensors or additional power intervention are required throughout the process.

[0015] (3) The present invention cooperates with the cylindrical roller bearing on the back of the slide by the guide inclined plate of the baffle. During the falling process of the mechanism, the inclined surface forces the slide to reset horizontally to the initial center position, eliminating manual intervention and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure without a shield of the present invention; Figure 3 It is a cross-sectional view of the present invention; Among them: 1-sliding bracket, 2-oil cylinder, 3-mounting plate, 4-cover plate, 5-oil cylinder support plate, 6-sliding bolt, 7-baffle, 8-cylindrical roller bearing, 9-roller, 10-roller shaft, 11-slide seat, 12-base, 13-support shaft. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-3 The adaptive centering mechanism shown is for a radial forging machine unit, comprising a sliding bracket 1 arranged symmetrically on the left and right, a driving cylinder 2 with a displacement sensor provided at the top of the piston rod, a base 12 and a slide 11; the sliding bracket 1 is fixed to the front of the radial forging machine main unit through a mounting plate 3, the mounting plate 3 is connected to the cover plate 4 to form a slideway, and the sliding bracket 1 can move up and down along the slideway; the driving cylinder 2 is fixed to the mounting plate 3 through a cylinder support plate 5, and its output end is connected to the sliding bracket 1 via a joint bearing, and an anti-oxidation scale shield is provided on the outside of the mounting plate 3 and the sliding bracket 1.

[0019] The two ends of the base 12 are respectively connected to the left and right sliding brackets 1, and two support shafts 13 are set in parallel on the base 12; the slide 11 is slidably installed on the support shaft 13, and a cylindrical roller bearing 8 is provided on the back of the slide 11, and two roller shafts 10 arranged in a V shape are installed on it; rollers 9 are installed on the roller shaft 10 to support the blank; a baffle 7 is fixed on the front of the radial forging machine main body, which is provided with a guide ramp. When the slide 11 falls, the cylindrical roller bearing 8 contacts the guide ramp and forces the slide 11 to return to the center position.

[0020] A T-shaped sliding bolt 6 is embedded in the sliding bracket 1. The sliding bolt 6 contacts the mounting plate 3 and the cover plate 4, and a grease lubrication port is provided on the surface of the sliding bolt 6.

[0021] The bottom of the slide seat 11 and the sliding bolt 6 are both provided with grease lubrication ports.

[0022] The working process of the present invention is: When the driving cylinder 2 pushes the sliding bracket 1 to lift, the base 12 rises synchronously to make the roller 9 contact the blank; during the forging process, the lateral force generated by the eccentric blank pushes the slide 11 to slide freely along the support shaft 13, so that the roller 9 is adaptively adjusted to the actual center position of the blank; after the forging is completed, the cylinder 2 retracts and drives the mechanism to fall. At this time, the cylindrical roller bearing 8 on the back of the slide 11 contacts the guide inclined plate of the baffle 7, and under the action of the inclined surface, the slide 11 is forced to slide horizontally until it is reset to the initial center position, completing the zero-power self-correction cycle.

[0023] The adaptive centering function of the present invention enables the forging center to be found without additional power when forging eccentric blanks. The mechanism's initial position is, by default, coplanar with the forging center. When the chuck clamps the eccentric blank and feeds it, the mechanism rises and contacts the eccentric blank. During the forging process, the forging force is transmitted, continuously driving the slide 11 until it aligns with the forging center. After forging is completed, the mechanism descends, and during this descent, the cylindrical roller bearing 8 contacts the baffle 7, thereby driving the slide 11 to its initial position.

[0024] The above are only preferred embodiments of the present invention. It should be noted that for those skilled in the art, based on the technical enlightenment provided by the present invention and as common knowledge in the field of mechanics, other equivalent variations and improvements can be made, which should also be considered as the scope of protection of the present invention.

Claims

1. An adaptive centering mechanism for a radial forging machine unit, characterized in that ‌: It comprises a sliding bracket (1), a driving cylinder (2), a base (12) and a slide seat (11) which are symmetrically arranged on both sides; The sliding bracket (1) is fixed to the front of the radial forging machine main body through the mounting plate (3), and the mounting plate (3) is connected to the cover plate (4) to form a slideway, and the sliding bracket (1) can move up and down along the slideway; The driving oil cylinder (2) is fixed to the mounting plate (3) via the oil cylinder support plate (5), and its output end is connected to the sliding bracket (1) via a joint bearing; The two ends of the base (12) are respectively connected to the left and right sliding brackets (1), and two supporting shafts (13) are arranged in parallel on the base (12); The slide (11) is slidably mounted on the support shaft (13), and a cylindrical roller bearing (8) is provided on the back of the slide (11), on which two roller shafts (10) arranged in a V shape are mounted; A roller (9) is mounted on the roller shaft (10) for supporting the blank; A baffle (7) is fixed on the front of the radial forging machine main body, which is provided with a guide inclined plate. When the slide (11) falls, the cylindrical roller bearing (8) contacts the guide inclined plate to force the slide (11) to return to the center position.

2. The adaptive centering mechanism for a radial forging machine unit according to claim 1, characterized in that: A displacement sensor is provided at the top end of the piston rod of the driving oil cylinder (2).

3. The adaptive centering mechanism for a radial forging machine unit according to claim 1 or 2, characterized in that: The sliding bracket (1) is embedded with a T-shaped sliding bolt (6), which is in contact with the mounting plate (3) and the cover plate (4), and has a grease lubrication port on its surface.

4. The adaptive centering mechanism for a radial forging machine unit according to claim 3, characterized in that: Anti-oxidation scale shields are provided on the outside of the mounting plate (3) and the sliding bracket (1).

5. The adaptive centering mechanism for a radial forging machine unit according to claim 4, characterized in that: The bottom of the slide seat (11) and the sliding bolt (6) are both provided with grease lubrication ports.

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