Hydraulic press moving material blocking mechanism

Abstract

The utility model discloses a kind of mobile material blocking mechanisms of oil press, including slide, cylinder, baffle plate, support rod, sliding assembly and spring, the slide is arranged on the ground of both sides of oil press workstation, the end of slide is connected with cylinder, the telescopic rod end of cylinder is connected with one end of sliding assembly, sliding assembly is overlapped on the slide and moves along the slide by the telescoping of telescopic rod, sliding assembly upper end is fixedly connected with support rod, baffle plate is connected between both sides support rod, through-hole is equipped on baffle plate, baffle plate is horizontally arranged, when sliding assembly moves to baffle working position along slide, the through-hole on baffle plate is just located below punch, spring is sleeved on support rod, one end of spring is on sliding assembly, the other end is on baffle plate.The utility model's material blocking mechanism can realize the function of blocking forging piece without interfering with forging piece displacement;It can cooperate with automatic forging program, improve production efficiency, reduce the labor intensity of artificial;Improve operation safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic press forging equipment, specifically relating to a detachable and replaceable hydraulic press moving stop mechanism. Background Technology

[0002] In forging production, forgings sticking to the punch (or upper die) is a very common and troublesome problem. There are many reasons for this. One major reason is adhesion caused by mechanical forces. Under tremendous impact or pressure, the softer, high-temperature, plastic forging metal can be pressed into microscopic pits, scratches, or pores on the die cavity surface. Like an anchor gripping the seabed, this creates a mechanical interlock. When the punch returns, these "anchored" metals require considerable force to break free; the rougher the die surface, the more pronounced this mechanical interlocking effect. Another reason is adhesion caused by physicochemical forces. Under high temperature and pressure, metal atoms become exceptionally active. The metal atoms of the forging (such as steel, aluminum, or titanium) and the die (usually hot-work die steel) diffuse into each other at the contact interface. Maintaining pressure for a long time forms a "diffusion layer" at the interface, with composition and properties intermediate between the two. This diffusion layer "welds" the two together with high strength. For certain metal combinations, such as aluminum and steel, hard and brittle intermetallic compounds (e.g., FeAl3) can easily form at the interface at high temperatures. These compounds not only promote adhesion, but their fragmentation also exacerbates mold wear and sticking. This not only affects production efficiency but can also damage the mold and workpiece, resulting in economic losses.

[0003] Currently, to address this issue, improvements are made to the mold itself, such as optimizing the die, increasing lubrication, and optimizing process parameters. A baffle is also designed to separate the forging from the punch during the punch extraction process. This structure is typically fixed to the forging press's worktable, which interferes with conventional forging operations, especially in multi-station forging auxiliary robots moving forgings. The longitudinal support rod connecting the baffle to the worktable conflicts with the robot's movement direction, hindering automated operation and impacting production efficiency. Even when manually operating the clamping structure to move the forging, the baffle still obstructs movement. For larger forgings, manual handling is extremely difficult, increasing labor intensity and further reducing production efficiency. Summary of the Invention

[0004] The purpose of this utility model is to overcome the defects in the prior art and provide a moving stop mechanism for a hydraulic press, which solves the problems of high labor intensity and low production efficiency caused by the easy interference of the fixed stop mechanism with the displacement of forgings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a moving baffle mechanism for a hydraulic press, comprising a slide rail, a cylinder, a baffle plate, a support rod, a sliding assembly, and a spring. The slide rail is arranged parallel to both sides of the hydraulic press worktable on the ground. The end of the slide rail is connected to the cylinder. The end of the cylinder's telescopic rod is connected to one end of the sliding assembly. The sliding assembly overlaps the slide rail and moves along the slide rail by the extension and retraction of the telescopic rod. The upper end of the sliding assembly is fixedly connected to the support rod. A baffle plate is connected between the two support rods. The baffle plate has a circular hole larger than the outer diameter of the support rod at a corresponding position. The upper part of the support rod is a threaded rod that passes through the baffle plate and is locked with a nut on the upper end face of the baffle plate. The baffle plate has a through hole and is horizontally set. When the sliding assembly moves along the slide rail to the baffle working position, the through hole on the baffle plate is exactly below the punch. The spring is fitted on the support rod, with one end of the spring pressing against the sliding assembly and the other end pressing against the baffle plate.

[0006] Further optimization involves the sliding assembly including a base and pulleys. The base is a right-angled folded plate composed of a horizontal plate and a vertical plate. A pulley is installed on the lower part of the horizontal plate, and the pulley is located on the slide rail. The end of the horizontal plate is fixedly connected to the end of the telescopic rod of the cylinder, and the vertical plate rests against the side wall of the slide rail.

[0007] Further optimization involves making the diameter of the through hole larger than the diameter of the punch but smaller than the diameter of the forging, thereby preventing the forging from moving upwards.

[0008] Further optimization involves a baffle fixedly connected to the end of the slide rail, which serves as a limit to prevent the material blocking mechanism from sliding out of the slide rail.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] 1. The baffle plate adopts a sliding structure, which can both block the forging and not interfere with the movement of the forging.

[0011] 2. It can be used in conjunction with automated forging processes to improve production efficiency and reduce the labor intensity of manual labor.

[0012] 3. Improve operational safety.

[0013] 4. The material blocking mechanism ensures that the blank falls off after being punched by the punch, and also ensures that the material blocking mechanism does not affect other actions and space of the hydraulic press. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the moving stop mechanism of a hydraulic press.

[0015] Figure 2 This is a schematic cross-sectional view of the moving stop mechanism of a hydraulic press.

[0016] Figure 3 This is a schematic diagram of the moving stop mechanism of the hydraulic press in operation.

[0017] The markings in the diagram are: 1-slide rail, 2-cylinder, 3-sliding assembly, 4-spring, 5-support rod, 6-baffle plate, 7-punch, 8-worktable, 9-forging, 201-telescopic rod, 301-base, 302-pulley. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. The vertical direction described in this invention is related to... Figure 2 The view direction is consistent from top to bottom.

[0019] like Figure 1 As shown, this utility model provides a moving baffle mechanism for a hydraulic press, including a slide rail 1, a cylinder 2, a baffle plate 6, a support rod 5, a sliding assembly 3, and a spring 4. There are two slide rails 1, arranged parallel to each other on the ground on both sides of the hydraulic press worktable 8. One end of the slide rail 1 is connected to the cylinder, and the other end of the slide rail 1 is fixedly connected to the baffle plate to prevent the baffle mechanism from sliding out of the slide rail. The end of the telescopic rod 201 of the cylinder 2 is connected to one end of the sliding assembly 3. The sliding assembly 3 rests on the slide rail 1 and moves along the slide rail 1 through the extension and retraction of the telescopic rod 201.

[0020] like Figure 2 As shown, the sliding assembly 3 includes a base 301 and a pulley 302. The base 301 is a right-angled folded plate composed of a horizontal plate and a vertical plate. The pulley 302 is installed on the lower part of the horizontal plate and is located on the slide rail 1. The end of the horizontal plate is fixedly connected to the end of the telescopic rod 201 of the cylinder 2. The vertical plate is restrained against the side wall of the slide rail 1. A support rod 5 is fixedly connected to the upper end of the sliding assembly 3. A baffle plate 6 is connected between the two support rods 5. The baffle plate 6 has a circular hole with a diameter larger than the outer diameter of the support rod 5 at the corresponding position. The upper part of the support rod 5 is a threaded rod that passes through the baffle plate 6 and is locked with a nut on the upper end face of the baffle plate 6. The baffle plate 6 has a through hole with a diameter larger than the diameter of the punch 7 and smaller than the diameter of the forging 8, which serves to prevent the forging from moving upward. The baffle plate 6 is set horizontally. When the sliding component 3 moves along the slide 1 to the baffle working position, the through hole on the baffle plate 6 is located directly below the punch 7. The spring 4 is fitted on the support rod 5. One end of the spring 4 is pressed against the sliding component 3, and the other end is pressed against the baffle plate 6, so that the baffle plate 6 can move downward under pressure. After the pressure is removed, it is reset by the elastic force of the spring 4 and limited by the nut.

[0021] During the forging operation of the multi-station hydraulic press, the forging 8 is first placed in the first working position for upsetting. At this time, the stop mechanism is in its initial position, i.e., outside the hydraulic press, and the telescopic rod 201 of the cylinder 2 is extended. After upsetting, the forging 8 is moved to the second working position by a robotic arm for the pressing process. At this time, the telescopic rod 201 of the cylinder 2 retracts to one side of the cylinder 2, driving the sliding assembly 3 and other structures connected to the sliding assembly 3 to move horizontally towards the worktable 8 of the hydraulic press. When the through hole on the stop plate 6 is exactly above the second working position, the cylinder 2 stops moving, and then the punch 7 presses the forging 8 downwards. Figure 3 As shown, the punch 7, together with the baffle plate 6, moves downward to press the forging 8. At this time, the spring 4 is in a compressed state. Then, the punch 7 moves upward to reset, and the baffle plate 6, no longer under pressure, is reset by the elastic force of the spring 4 to return to its original position. Figure 2 As shown, after the forging 8 and punch 7 move upward together and the upper end face of the forging 8 contacts the lower end face of the baffle plate 6, the punch 7 continues to return upward from the through hole. The forging 8 is blocked by the baffle plate 6 and falls back to the second working position of the worktable 8. After the forging 8 and punch 7 separate and return to their original positions, the cylinder 2 extends the telescopic rod 201, driving the baffle mechanism back to its initial position. This process completes one baffle operation. By programming the working sequence of the baffle mechanism into the automatic control system, the baffle operation can be performed automatically and repeatedly.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil press moving baffle mechanism characterized by comprising: The device includes a slide rail, a cylinder, a baffle plate, a support rod, a sliding assembly, and a spring. The slide rail is arranged parallel to both sides of the hydraulic press worktable on the ground. The end of the slide rail is connected to the cylinder, and the end of the cylinder's telescopic rod is connected to one end of the sliding assembly. The sliding assembly rests on the slide rail and moves along the slide rail by the extension and retraction of the telescopic rod. The upper end of the sliding assembly is fixedly connected to the support rod, and the baffle plate is connected between the two support rods. The baffle plate has a circular hole larger than the outer diameter of the support rod at the corresponding position. The upper part of the support rod is a threaded rod that passes through the baffle plate and is locked with a nut on the upper end face of the baffle plate. The baffle plate has a through hole and is horizontally set. When the sliding assembly moves along the slide rail to the baffle working position, the through hole on the baffle plate is exactly below the punch. The spring is fitted on the support rod, with one end of the spring pressing against the sliding assembly and the other end pressing against the baffle plate.

2. The oil press moving baffle mechanism according to claim 1, characterized by: The sliding assembly includes a base and a pulley. The base is a right-angled folded plate composed of a horizontal plate and a vertical plate. The pulley is installed on the lower part of the horizontal plate and is located on the slide rail. The end of the horizontal plate is fixedly connected to the end of the telescopic rod of the cylinder, and the vertical plate rests against the side wall of the slide rail.

3. The hydraulic press moving stop mechanism according to claim 1, characterized in that: The diameter of the through hole is larger than the diameter of the punch but smaller than the diameter of the forging.

4. The oil press moving baffle mechanism according to claim 1, characterized by: A baffle is fixedly connected to the end of the slide.

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