Mechanical clamp for forging workpiece

Abstract

The utility model relates to a mechanical clamp for forging workpieces, which comprises a frame, bolts are mounted at four corners of the bottom of the frame, an operating platform is mounted on the upper surface of the frame, a front clamp mechanism and a rear clamp mechanism are mounted on the upper surface of the operating platform, and each clamp mechanism comprises a left clamp component and a right clamp component. The clamp assemblies on the two sides can clamp the two ends of a workpiece to be machined. The clamp assembly comprises an end supporting piece, an inner supporting piece, a side edge supporting piece and a top supporting piece. The end supporting piece comprises a first telescopic piece and a first push plate connected with the telescopic end of the first telescopic piece, the side supporting piece comprises a second telescopic piece and a second push plate connected with the telescopic end of the second telescopic piece, and the internal supporting piece comprises a third telescopic piece and a first supporting block connected with the telescopic end of the third telescopic piece. The top supporting piece comprises a driving piece and a push rod connected with the output end of the driving piece. The clamping device has the advantages of being accurate in positioning, stable in clamping, high in adaptability, capable of avoiding damage to workpieces and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing fixture technical field especially relates to a mechanical clamp for forging workpiece. BACKGROUND

[0002] In the field of metal forging processing, especially for the special-shaped workpiece such as slender U-shaped pipe, its positioning and clamping in the processing are always a problem, and the traditional fixture is often poor in versatility, and it is difficult to adapt to the slender shape of U-shaped pipe and the complex structural characteristics, on the one hand, the U-shaped pipe is prone to displacement and deformation when forging, and the ordinary fixture cannot stably support it from multiple directions, resulting in difficult to guarantee the processing precision, on the other hand, the existing fixture is prone to damage the pipe wall of U-shaped pipe during clamping, affecting the product quality, in addition, due to the special shape of U-shaped pipe, the traditional fixture lacks adjustment flexibility, and cannot quickly and accurately adapt to diversified workpiece processing requirements, greatly reducing the production efficiency and increasing the production cost.

[0003] Therefore, there is an urgent need for a high-efficiency, accurate and good protection mechanical clamp for forging workpiece specially for the forging processing of slender U-shaped pipe. SUMMARY

[0004] The utility model mainly aims at the above -mentioned problem existing in prior art, provides a mechanical clamp for forging workpiece.

[0005] The utility model discloses a mechanical clamp for forging workpiece, which can realize stable positioning and clamping of the workpiece from multiple directions, and can prevent the workpiece from being damaged during clamping, thereby improving the processing precision and product quality.

[0006] The utility model discloses a mechanical clamp for forging workpiece, which can realize stable positioning and clamping of the workpiece from multiple directions, and can prevent the workpiece from being damaged during clamping, thereby improving the processing precision and product quality.

[0007] As a preferred, the first telescopic piece is installed on the operation table, and is located at the left side or right side edge of the operation table, the first telescopic piece can drive the first push plate to move left and right, and can abut to the end of the workpiece to be processed.

[0008] As preferred, the second telescopic part is installed on the operation table and is located inside the first telescopic part, the second telescopic part can drive the second push plate to move forward and backward and can abut against the side wall of the workpiece to be processed.

[0009] As preferred, the third telescopic part is installed on the operation table through a limiting slide rail, the upper surface of the limiting slide rail is provided with a U-shaped slide groove, the upper part of the U-shaped slide groove is extended inward to be provided with limiting protrusions, the bottom of the first supporting block is extended outward to be provided with limiting sliding blocks, the first supporting block is slidingly connected in the U-shaped slide groove, and the upper surface of the limiting sliding block is in contact with the lower surface of the limiting protrusion.

[0010] As preferred, the third telescopic part can drive the first supporting block to move left and right along the limiting slide rail, the side of the first supporting block away from the second push plate is provided with a limiting clamping plate, a clamping groove is formed between the limiting clamping plate and the first supporting block, the side wall of the workpiece to be processed can be clamped in the clamping groove, and the outer side wall of the first supporting block abuts against the inside of the workpiece to be processed.

[0011] As preferred, the driving part comprises a fourth telescopic part, a first connecting rod, a second connecting rod and an L-shaped supporting plate, the fourth telescopic part is installed on the side wall of the L-shaped supporting plate, the telescopic end of the fourth telescopic part is rotationally connected with the bottom end of the first connecting rod after penetrating through the side wall of the L-shaped supporting plate, the top end of the second connecting rod is rotationally connected with the top of the L-shaped supporting plate, the bottom end of the second connecting rod is rotationally connected with the middle part of the first connecting rod, and the push rod is vertically installed on the top end of the first connecting rod.

[0012] As preferred, the side wall of the first push plate, the side wall of the second push plate and the end of the push rod are all provided with a buffer layer, and the first supporting block is made of rubber.

[0013] Therefore, compared with the prior art, the utility model has the following advantages:

[0014] (1) The utility model discloses a plurality of supporting parts of end, side, inside and top cooperate, can according to the shape characteristics of slender U type pipe, from each direction to its accurate positioning, effectively prevent the displacement, sway and deformation in the forging process, ensure the machining accuracy, satisfy the high-precision forging process requirement.

[0015] (2) The plurality of telescopic parts and the top supporting part driven by the connecting rod in the utility model discloses the clamping mechanism can be flexibly adjusted according to different specifications of U type pipe, and the clamping of different workpieces is quickly realized, the versatility and production efficiency of the clamp are greatly improved, and the tool changing cost is reduced.

[0016] (3) The setting of the buffer layer and the internal supporting block of rubber material in the utility model protect the U type pipe wall from being damaged to the maximum extent during clamping and processing, reduce the rate of defective products, improve product quality and reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is the front view of the utility model;

[0019] Figure 3 is the top view of the utility model;

[0020] Figure 4 is the installation schematic view of the workpiece to be processed in the utility model;

[0021] Figure 5 is the structural schematic view of the clamp assembly in the utility model.

[0022] Brief Description of Drawings: 1-frame; 2-bolt; 3-operation table; 4-clamp mechanism; 5-U-shaped pipe to be processed; 6-clamp assembly; 7-end support; 8-internal support; 9-side support; 10-top support; 11-first telescopic part; 12-first push plate; 13-second telescopic part; 14-second push plate; 15-third telescopic part; 16-first support block; 17-push rod; 18-limiting slide rail; 19-U-shaped sliding groove; 20-limiting protrusion; 21-limiting sliding block; 22-limiting clamping plate; 23-clamping groove; 24-fourth telescopic part; 25-first connecting rod; 26-second connecting rod; 27-L-shaped support plate; 28-cushion layer. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be further specifically explained below by specific embodiments and in conjunction with the drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of variation and / or change of the utility model will fall within the scope of protection of the utility model.

[0024] In the utility model, all parts, percentages are weight units unless otherwise specified, and the equipment and raw materials used can be purchased from the market or commonly used in the art. The methods in the following examples are conventional methods in the art unless otherwise specified. The components or equipment in the following examples are general standard components or components known to those skilled in the art unless otherwise specified. Their structure and principle can be known to the skilled person through technical manuals or obtained through conventional experimental methods.

[0025] Embodiment:

[0026] As Figure 1As shown, the utility model provides a kind of technical scheme, mechanical clamp for forging workpiece, including rack 1, the bottom four corners of rack 1 are all installed with bolt 2 connected with ground, for firmly fixed in work site with entire clamp, the upper surface of rack 1 is installed with operation table 3, provides stable platform for subsequent clamp mechanism and workpiece operation.

[0027] The upper surface of the above-mentioned operation table 3 is installed with two groups of clamp mechanisms 4, each group of clamp mechanisms 4 corresponds to one workpiece 5 to be processed, and each group of clamp mechanisms 4 includes two symmetrically arranged clamp assemblies 6, and the clamp assemblies 6 on both sides can clamp the two ends of the workpiece 5 to be processed, and position the workpiece 5 to be processed from the axial direction.

[0028] The above-mentioned clamp assembly 6 includes an end support 7, an internal support 8, a side support 9 and a top support 10, which ensures the stability of the workpiece 5 to be processed during forging through a multi-directional support structure.

[0029] The above-mentioned end support 7 includes a first telescopic member 11 and a first push plate 12 fixedly connected to the telescopic end of the first telescopic member 11, the first telescopic member 11 is installed on the operation table 3 by bolts, and is located at the left or right edge of the operation table 3, the first telescopic member 11 can drive the first push plate 12 to move left and right, and precisely abut against the end of the workpiece 5 to be processed, to reliably limit the axial end of the workpiece 5 to be processed.

[0030] The above-mentioned side support 9 includes a second telescopic member 13 and a second push plate 14 connected to the telescopic end of the second telescopic member 13, the second telescopic member 13 is installed on the operation table 3, and is located inside the first telescopic member 11, the second telescopic member 13 can drive the second push plate 14 to move forward and backward, and tightly abut against the side wall of the workpiece 5 to be processed, to constrain the workpiece 5 to be processed from the side and prevent it from shaking radially.

[0031] The internal support 8 comprises a third telescopic member 15 and a first support block 16 connected to the telescopic end of the third telescopic member 15. The third telescopic member 15 is installed on the operation table 3 through a limiting slide rail 18. The upper surface of the limiting slide rail 18 is provided with a U-shaped slide groove 19. The upper part of the U-shaped slide groove 19 extends inward on both sides to form limiting protrusions 20. The bottom of the first support block 16 extends outward on both sides to form limiting slide blocks 21. The first support block 16 is slidingly connected in the U-shaped slide groove 19. The upper surface of the limiting slide block 21 is in contact with the lower surface of the limiting protrusion 20, thereby ensuring the stability of the movement of the first support block 16. The third telescopic member 15 can drive the first support block 16 to move left and right along the limiting slide rail 18. The side of the first support block 16 away from the second push plate 14 is provided with a limiting clamping plate 22 through a bolt. A clamping groove 23 is formed between the limiting clamping plate 22 and the first support block 16. The side wall of the workpiece 5 to be processed can be clamped in the clamping groove 23. The outer side wall of the first support block 16 abuts against the inside of the workpiece 5 to be processed, thereby supporting the workpiece 5 to be processed from the inside and enhancing the anti-deformation capability. According to the actual situation, a plurality of first support blocks 16 can be prepared to be suitable for workpieces 5 to be processed with different inner diameters.

[0032] The top support 10 comprises a driving member and a push rod 17 connected to the output end of the driving member. The driving member comprises a fourth telescopic member 24, a first connecting rod 25, a second connecting rod 26 and an L-shaped support plate 27. The fourth telescopic member 24 is installed on the side wall of the L-shaped support plate through a bolt. The telescopic end of the fourth telescopic member 24 is rotatably connected to the bottom end of the first connecting rod 25 through a rotating shaft after penetrating through the side wall of the L-shaped support plate 27. The top end of the second connecting rod 26 is rotatably connected to the top of the L-shaped support plate 27 through a rotating shaft. The bottom end of the second connecting rod 26 is rotatably connected to the middle part of the first connecting rod 25 through a rotating shaft. The push rod 17 is vertically installed on the top end of the first connecting rod 25. Through the telescopic movement of the fourth telescopic member 24, the lifting movement of the push rod 17 is converted through the connecting rod mechanism, thereby realizing the pressing or loosening of the top of the workpiece 5 to be processed and adapting to the processing requirements of workpieces 5 to be processed with different heights.

[0033] The side walls of the first push plate 12 and the second push plate 14 and the end of the push rod 17 are all bonded with a buffer layer 28 made of rubber, thereby reducing the impact force on the pipe wall of the workpiece 5 to be processed during clamping and avoiding scratching. The first support block 16 is also made of rubber, thereby providing stable internal support force and preventing damage to the inner wall of the workpiece 5 to be processed.

[0034] It should be noted that the telescopic member in the present application adopts a push rod motor, a pneumatic cylinder or a hydraulic cylinder. The specific driving mode is prior art, which will not be described here.

[0035] The mechanical clamp for forging workpieces provided by the application can accurately position the slender U-shaped pipe from various directions according to the shape characteristics of the pipe, effectively prevent displacement, shaking and deformation in the forging process, ensure machining precision, and meet the high-precision forging process requirements; the plurality of telescopic members in the clamp mechanism and the top support driven by the connecting rod can be flexibly adjusted according to U-shaped pipes of different specifications, quickly realize clamping of different workpieces, greatly improve the versatility and production efficiency of the clamp, and reduce the tool replacement cost; the setting of the buffer layer and the internal support block made of rubber material maximally protect the U-shaped pipe wall from damage during clamping and machining, reduce the defective product rate, improve product quality, reduce production cost, and provide a reliable tooling solution for the metal processing industry.

[0036] It should be understood that the embodiments are only used for illustrating the present application and not for limiting the scope of the present application. Furthermore, it should be understood that after reading the content taught by the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

Claims

1. A mechanical clamp for forging workpieces, comprising a frame (1), bolts (2) connected with the ground are installed at the bottom of each corner of the frame (1), characterized in that: The upper surface of the rack (1) is provided with an operation table (3), the upper surface of the operation table (3) is provided with two groups of clamp mechanisms (4) in front and back, each group of clamp mechanisms (4) corresponds to a workpiece (5) to be processed, and each group of clamp mechanisms (4) comprises two symmetrical clamp assemblies (6) on the left and right sides, and the clamp assemblies (6) on the two sides can clamp the two ends of the workpiece (5) to be processed.

2. The mechanical clamp for a forged workpiece of claim 1, wherein: The first telescopic piece (11) is installed on the operation table (3) and located at the left or right edge of the operation table (3), the first telescopic piece (11) can drive the first push plate (12) to move left and right, and can abut against the end of the workpiece (5) to be processed.

3. The mechanical clamp for a forged workpiece of claim 2, wherein: The second telescopic piece (13) is installed on the operation table (3) and located inside the first telescopic piece (11), the second telescopic piece (13) can drive the second push plate (14) to move forward and backward, and can abut against the side wall of the workpiece (5) to be processed.

4. The mechanical clamp for a forged workpiece of claim 3, wherein: The third telescopic piece (15) is installed on the operation table (3) through a limiting slide rail (18), the upper surface of the limiting slide rail (18) is provided with a U-shaped sliding groove (19), the upper two sides of the U-shaped sliding groove (19) extend inward and are provided with limiting protrusions (20), the bottom two sides of the first supporting block (16) extend outward and are provided with limiting sliding blocks (21), the first supporting block (16) is slidingly connected in the U-shaped sliding groove (19), and the upper surface of the limiting sliding block (21) is in contact with the lower surface of the limiting protrusion (20).

5. The mechanical clamp for a forged workpiece of claim 4, wherein: The third telescopic piece (15) can drive the first supporting block (16) to move left and right along the limiting slide rail (18), one side of the first supporting block (16) away from the second push plate (14) is provided with a limiting clamping plate (22), a clamping groove (23) is formed between the limiting clamping plate (22) and the first supporting block (16), the side wall of the workpiece (5) to be processed can be clamped in the clamping groove (23), and the outer side wall of the first supporting block (16) abuts against the inside of the workpiece (5) to be processed.

6. The mechanical clamp for a forged workpiece of claim 5, wherein: The driving member comprises a fourth telescopic member (24), a first connecting rod (25), a second connecting rod (26) and an L-shaped supporting plate (27), the fourth telescopic member (24) is installed on the side wall of the L-shaped supporting plate, the telescopic end of the fourth telescopic member (24) is connected with the bottom end of the first connecting rod (25) in rotation after penetrating through the side wall of the L-shaped supporting plate (27), the top end of the second connecting rod (26) is connected with the top of the L-shaped supporting plate (27) in rotation, and the bottom end of the second connecting rod (26) is connected with the middle part of the first connecting rod (25) in rotation, and the push rod (17) is vertically installed on the top end of the first connecting rod (25).

7. The mechanical clamp for a forged workpiece of claim 6, wherein: The side wall of the first push plate (12), the side wall of the second push plate (14) and the end of the push rod (17) are all provided with a buffer layer (28), and the first supporting block (16) is made of rubber.

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