Clamp device suitable for large-specification disc isothermal forgings

Abstract

A clamp device suitable for large-specification disc isothermal forgings comprises two clamp seats which are oppositely arranged, the front side faces of the two clamp seats are each provided with a U-shaped jaw groove with an opening, the two U-shaped jaw grooves are oppositely arranged, the two sides of each U-shaped jaw groove are each provided with a clamp foot, and the clamp feet are arranged on the two sides of each U-shaped jaw groove. An arc-shaped jaw groove with an opening is formed in the upper surface of each clamp seat, and the two arc-shaped jaw grooves are oppositely arranged. According to the clamp device, large-diameter blanks can be clamped through the arc-shaped jaw grooves, the transverse slippage phenomenon is reduced, large-specification disc forgings can be longitudinally supported through the U-shaped jaw grooves, the probability of slippage in the vertical direction is remarkably reduced, the clamping efficiency is improved, a mold and the forgings can be conveniently separated, forgings can be conveniently demolded, and the mechanical arm clamp function is improved; the requirement for the level of a manipulator operator can be relatively lowered, human factors in the technological production process are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of metallurgy, in particular to forging technology, in particular to a clamping device suitable for large-size disk-type isothermal forgings. Background Art

[0002] In the field of isothermal forging of titanium alloys, isothermal forgings have complex structures, including cylinder-type, wheel-type and special-shaped parts, and the sizes of forgings are divided into small-size forgings and large-size forgings. Different structures and sizes of forgings have different requirements for manipulator clamps. In addition, isothermal forgings have to undergo multiple transfers during the production process from bar billets, intermediate billets to formed forgings, and also face a complex temperature (<1000℃) working environment. Under the condition of limited transfer time, the flexibility and practicality of the manipulator clamps have a great impact on the improvement of isothermal forging production efficiency. Under the current production conditions, the manipulator clamps mainly weld two carbon steel bars with threads on the arc plate, and clamp the billet or forging with the friction of the threads. The carbon steel threads will be worn flat with the increase in the number of uses, and the friction will be reduced. When clamping large-diameter billets or large-size disc-type forgings, slippage is likely to occur. The difficulty in clamping causes a long transfer time, which affects the performance of the forgings, and has high technical requirements for the manipulator operator, which has an adverse effect on the improvement of process production efficiency. Summary of the invention

[0003] The purpose of the utility model is to provide a clamp device suitable for large-sized disc-type isothermal forgings. The clamp device suitable for large-sized disc-type isothermal forgings is to solve the technical problem in the prior art that the clamps are prone to slipping when clamping large-diameter billets or large-sized disc-type forgings.

[0004] The utility model discloses a clamp device suitable for large-size disk-type isothermal forgings, comprising two clamp seats arranged opposite to each other, each of the front side surfaces of the two clamp seats being respectively provided with a U-shaped jaw groove with an opening, the U-shaped jaw groove penetrating the clamp seat along the front-to-back direction of the clamp seat, the two U-shaped jaw grooves being arranged opposite to each other, a clamp foot being formed on each side of the U-shaped jaw groove, each of the upper surfaces of the two clamp seats being respectively provided with an arc-shaped jaw groove with an opening, the arc-shaped jaw groove penetrating the clamp seat along the up-down direction, the arc-shaped jaw grooves in the two clamp seats being arranged opposite to each other, and each of the side surfaces of the two clamp seats being away from the U-shaped jaw groove being respectively provided with a mounting piece.

[0005] Furthermore, concave cavities are provided in the facing sides of the two clamp seats.

[0006] Furthermore, the mounting member includes two ear seats arranged at intervals, and positioning pin holes are coaxially arranged on the two ear seats, positioning pins are passed through the positioning pin holes, and radial clamping holes are arranged at the tail ends of the positioning pins, and transverse pins are passed through the clamping holes.

[0007] Furthermore, the clamp seat, clamp foot, ear seat and positioning pin are all made of carbon structural steel.

[0008] Compared with the prior art, the utility model has a positive and obvious effect. The clamp device of the utility model can not only use the arc-shaped jaw groove to clamp large-diameter billets to reduce the lateral slippage phenomenon, but also use the U-shaped jaw groove to longitudinally support large-size disc-type forgings, significantly reduce the probability of vertical slippage, improve the clamping efficiency, facilitate the separation of the mold and the forging, facilitate the demoulding of the forging, improve the function of the manipulator clamp, relatively reduce the requirements for the level of the manipulator operator, reduce the human factors in the process of production, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view schematic diagram of a clamping device suitable for large-sized disk-type isothermal forgings of the utility model.

[0010] Figure 2 It is a top view schematic diagram of a clamp device suitable for large-sized disk-type isothermal forgings of the utility model.

[0011] Figure 3 It is a three-dimensional schematic diagram of a clamping device suitable for large-sized disk-type isothermal forgings of the utility model.

[0012] Figure 4 This is a schematic diagram of a first use state of a clamping device suitable for large-sized disk-type isothermal forgings according to the utility model.

[0013] Figure 5 This is a schematic diagram of a second use state of a clamping device suitable for large-sized disk-type isothermal forgings according to the utility model.

[0014] Figure 6 This is a schematic diagram of a third use state of a clamping device suitable for large-sized disk-type isothermal forgings according to the utility model. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with an embodiment, but the present invention is not limited to the embodiment. Any similar structure and similar changes of the present invention should be included in the protection scope of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and is not a limitation on the technical solution of the present invention.

[0016] like Figure 1-Figure 6As shown, the utility model is a clamp device suitable for large-size disk-type isothermal forgings, comprising two clamp seats 1 arranged opposite to each other, each of the front side surfaces of the two clamp seats 1 is respectively provided with a U-shaped jaw groove 2 with an opening, the U-shaped jaw groove 2 penetrates the clamp seat 1 along the front-to-back direction of the clamp seat 1, the two U-shaped jaw grooves 2 are arranged opposite to each other, and a clamp foot 3 is formed on both sides of the U-shaped jaw groove 2, respectively, and each of the upper surfaces of the two clamp seats 1 is respectively provided with an arc-shaped jaw groove 4 with an opening, the arc-shaped jaw groove 4 penetrates the clamp seat 1 along the up-down direction, the arc-shaped jaw grooves 4 in the two clamp seats 1 are arranged opposite to each other, and each of the side surfaces of the two clamp seats 1 away from the U-shaped jaw groove 2 is respectively provided with a mounting part.

[0017] Furthermore, concave cavities 5 are provided in the facing sides of the two clamp seats 1 .

[0018] Furthermore, the mounting member includes two ear seats 6 arranged at intervals, and the two ear seats 6 are coaxially provided with positioning pin holes 7, through which positioning pins are passed, and the tail end of the positioning pin is provided with a radial clamping hole, through which a transverse pin is passed.

[0019] Furthermore, the clamp seat 1, clamp foot 3, ear seat 6, and positioning pin are all made of carbon structural steel, which can maintain stable lateral clamping force and longitudinal supporting force in different temperature environments (<1000° C.).

[0020] Specifically, the clamp seat 1, mounting member, ear seat 6, positioning pins, transverse pins, carbon structural steel, etc. in this embodiment all adopt well-known solutions in the prior art, which are well understood by those skilled in the art and will not be described in detail here.

[0021] Installation and use process of the clamp device: 1) Clamp the ear seat 6 to the upper and lower sides of the front end of the manipulator, align the positioning pin hole 7 with the pin hole at the front end of the manipulator, connect it to the manipulator using the positioning pin, and use the transverse pin to fix it at the clamp hole to ensure that the positioning pin will not fall off when the manipulator flips 360 degrees, causing the clamp seat 1 to separate from the manipulator; during use, the clamp seat 1 opens, closes or flips with the manipulator. After production is completed, first remove the transverse pin, then remove the positioning pin, and finally remove the clamp seat 1 from the manipulator. 2) With the positioning pin hole as the center, the clamp seat 1 can flexibly rotate within a range of 120° to increase the flexibility of clamping the material; 3) During use, the arc-shaped jaw groove 4 is partially fitted with the blank 8 or forging, and then the manipulator clamps and picks it up for transfer or rotation, and the blank or forging will not slip off; 4) During use, use the U-shaped jaw groove 2 and the clamp foot 3 to clamp the bottom surface of the formed forging 10, lift the mold upward, and demold the formed forging 10.

[0022] Implementation method 1:

[0023] Use a clamp to grab the bar blank 8, such as Figure 4As shown, after the rod is sawed, the diameter of the blank 8 is Φ430 mm. After the lubricant is applied, the blank 8 is clamped by the arc-shaped jaws and quickly transferred to the resistance heating furnace and heated to 1000° C. for insulation.

[0024] Implementation method 2:

[0025] Use clamps to clamp the intermediate blank 9, such as Figure 5 According to the isothermal forging method of the second implementation method, after the bar blank 8 is heated, the bar blank 8 is taken out by the clamp and placed on the heating platform of the hydraulic press for isothermal forging. After forging, the intermediate blank 9 is in a pancake shape with an outer diameter of Φ500-700mm and a temperature of 800-1000°C. The intermediate blank 9 is then clamped by the U-shaped jaw groove 2 and the clamp foot 3 to implement the transfer.

[0026] Implementation method three:

[0027] Use clamps to hold the formed forging 10, such as Figure 6 As shown, according to the isothermal forging method of implementation method three, after the intermediate billet 9 is heated, the clamp takes out the intermediate billet 9 and places it on the heating platform of the hydraulic press for isothermal forging. After forging, the formed forging 10 is a large-sized disc-like part with a diameter of Φ1100~1200mm and a temperature of 800~1000℃. At this time, the U-shaped jaw groove 2 and the clamp foot 3 lift the rim of the formed forging 10 and take it out.

Claims

1. A clamping device suitable for large-size disk-type isothermal forgings, characterized in that: The utility model comprises two clamp seats arranged opposite to each other, each of which has a U-shaped jaw groove with an opening in the front side surface thereof, and the U-shaped jaw groove penetrates the clamp seat in the front-to-back direction thereof, the two U-shaped jaw grooves are arranged opposite to each other, and a clamp foot is formed on each side of the U-shaped jaw groove, and each of which has an arc-shaped jaw groove with an opening in the upper surface thereof, and the arc-shaped jaw groove penetrates the clamp seat in the up-down direction, the arc-shaped jaw grooves in the two clamp seats are arranged opposite to each other, and each of which has a mounting part on the side surface thereof away from the U-shaped jaw groove.

2. A clamping device suitable for large-sized disk-type isothermal forgings according to claim 1, characterized in that: Concave cavities are arranged in the facing sides of the two clamp seats.

3. The clamping device suitable for large-sized disk-type isothermal forgings according to claim 1 is characterized in that: The mounting member comprises two ear seats which are arranged at intervals. The two ear seats are coaxially provided with positioning pin holes, positioning pins are passed through the positioning pin holes, and radial clamping holes are provided at the tail ends of the positioning pins, and transverse pins are passed through the clamping holes.

4. A clamping device suitable for large-sized disk-type isothermal forgings according to claim 1, characterized in that: The clamp seat, clamp foot, ear seat and positioning pin are all made of carbon structural steel.

Images