Die for forging camshaft

Abstract

The utility model relates to the technical field of camshaft forging dies, in particular to a camshaft forging die which comprises a lower die body, an upper die body is arranged on the lower die body, a camshaft is arranged between the lower die body and the upper die body, an installation frame is arranged on the front side of the camshaft, and a clamping plate is movably installed on the installation frame. Clamping grooves are formed in the opposite sides of the clamping plates, the two ends of the cam shaft are clamped in the clamping grooves, an opening mechanism is arranged on the mounting frame, and a displacement mechanism is arranged on the mounting frame. The cam shaft is demoulded in a clamping mode, compared with manual demoulding, the cam shaft demoulding device is more convenient and faster to use, compared with automatic demoulding, the stability is better, the condition that the cam shaft is collided and damaged is avoided, in addition, the clamping part of the device is small, the structure is simple, operation is convenient, the maintenance cost and the use cost are low, and the device is suitable for popularization and application. And the economic benefit during equipment production can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft forging dies, and particularly relates to a die for forging a camshaft. Background Technique

[0002] A camshaft is a component in a piston engine. Its function is to control the opening and closing actions of the valves. Although the rotational speed of the camshaft in a four-stroke engine is half of that of the crankshaft, generally its rotational speed is still very high, and it needs to bear a large torque. Therefore, in the design, the requirements for the camshaft in terms of strength and support are very high. Its material is generally special cast iron, and occasionally forgings are also used. During the forging process of the camshaft, it is mainly produced through a die. However, the existing camshaft drops from the die during demolding, and in this process, the camshaft is prone to damage or some profiles are damaged. In addition, the manual demolding method is restricted by the temperature of the camshaft. Since the camshaft is a cylinder as a whole, it is not easy to take. For this reason, we propose a die for forging a camshaft to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a die for forging a camshaft to solve the problems of possible damage during demolding and inconvenient manual demolding mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A die for forging a camshaft, including a lower die, an upper die is arranged on the lower die,

[0005] A camshaft is arranged between the lower die and the upper die. An installation frame is arranged on the front side of the camshaft. A clamping plate is movably installed on the installation frame. Clamping grooves are formed on the opposite sides of the clamping plate. Both ends of the camshaft are clamped in the clamping grooves. An opening mechanism is arranged on the installation frame, and a displacement mechanism is arranged on the installation frame.

[0006] Preferably, a plurality of groups of clamping grooves are provided and the sizes of the clamping grooves are different. A loading cylinder is arranged at the front end of the clamping plate. A plug rod is movably inserted in the loading cylinder. The plug rod is fixedly connected with the clamping plate. A spring is sleeved on the plug rod.

[0007] Preferably, the opening mechanism includes that a slider is fixedly installed at the front end of the clamping plate. Two groups of limiting rods are fixedly installed in the installation frame. Two groups of limiting holes are formed on the slider. The limiting rods are inserted into the limiting holes to move. The upper end of the slider is hinged with a hinge rod. The upper sides of the two groups of hinge rods are hinged with a pressing plate. An installation block is fixedly installed at the central position of the installation frame. A guiding rod is fixedly installed on the installation block. The pressing plate is inserted on the guiding rod to move.

[0008] Preferably, a fixing block is provided on the lower side of the mounting bracket, and an insertion block is fixedly installed at the lower end of the mounting bracket, and the insertion block is inserted into the fixing block.

[0009] Preferably, the displacement mechanism includes a receiving block, the receiving block is arranged on the lower side of the fixing block, a sliding groove is formed in the receiving block, and two groups of rollers are rotatably installed at the lower end of the fixing block, and the rollers roll in the sliding groove.

[0010] Preferably, the receiving block is made of rubber, and the upper side of the receiving block is recessed towards the center.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model demolds the camshaft by means of clamping, which is more convenient and easier than manual demolding, and has better stability than self-demolding, and there will be no situation of bumping and damaging the camshaft. In addition, the clamping part of the equipment is small, the structure is simple, the operation is convenient, and the maintenance cost and use cost are both low, which is beneficial to improving the economic benefits during the production of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 It is a separated structural schematic diagram of the mounting bracket of the present utility model;

[0015] Figure 3 It is a separated structural schematic diagram of the loading cylinder of the present utility model;

[0016] Figure 4 For the present utility model Figure 2 Partial enlarged schematic diagram of A in.

[0017] In the figure: 1, lower mold; 2, upper mold; 3, camshaft; 4, mounting bracket; 5, clamping plate; 6, engaging groove; 7, loading cylinder; 8, insertion rod; 9, spring; 10, slider; 11, limiting rod; 12, limiting hole; 13, hinge rod; 14, mounting block; 15, guiding rod; 16, pressing plate; 17, fixing block; 18, insertion block; 19, receiving block; 20, sliding groove; 21, roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , an embodiment provided by the present invention: a die for forging a camshaft, including a lower die 1, an upper die 2 is arranged on the lower die 1,

[0020] A camshaft 3 is arranged between the lower die 1 and the upper die 2. An installation frame 4 is arranged on the front side of the camshaft 3. A clamping plate 5 is movably installed on the installation frame 4. Clamping grooves 6 are formed on the opposite sides of the clamping plate 5. Both ends of the camshaft 3 are clamped in the clamping grooves 6. An opening mechanism is arranged on the installation frame 4, and a displacement mechanism is arranged on the installation frame 4. This device is provided with a clamping plate 5 for clamping to clamp and demold the camshaft 3, and a displacement mechanism is also provided so that the camshaft 3 can be placed.

[0021] Furthermore, multiple groups of clamping grooves 6 are provided and the sizes of the clamping grooves 6 are different. A loading cylinder 7 is arranged at the front end of the clamping plate 5. A plug rod 8 is movably inserted into the loading cylinder 7. The plug rod 8 is fixedly connected to the clamping plate 5. A spring 9 is sleeved on the plug rod 8. This structure enables the clamping plate 5 to clamp camshafts 3 of different specifications, increasing the adaptability of the device during use.

[0022] Furthermore, the opening mechanism includes that a slider 10 is fixedly installed at the front end of the clamping plate 5. Two groups of limiting rods 11 are fixedly installed in the installation frame 4. Two groups of limiting holes 12 are formed on the slider 10. The limiting rods 11 are inserted into the limiting holes 12 and move therein. The upper end of the slider 10 is hinged with a hinged rod 13. The upper sides of the two groups of hinged rods 13 are hinged with a pressing plate 16. An installation block 14 is fixedly installed at the central position of the installation frame 4. A guiding rod 15 is fixedly installed on the installation block 14. The pressing plate 16 is inserted on the guiding rod 15 and moves therein. This structure enables the user to make the clamping plate 5 open conveniently by pressing down the pressing plate 16, increasing the convenience of the device during use.

[0023] Furthermore, a fixing block 17 is arranged on the lower side of the installation frame 4. An insertion block 18 is fixedly installed at the lower end of the installation frame 4. The insertion block 18 is inserted into the fixing block 17. This structure enables the installation frame 4 to move upward so that the camshaft 3 can fall off from the lower die 1, further increasing the convenience of the device during use.

[0024] Furthermore, the displacement mechanism includes a receiving block 19 which is arranged on the lower side of the fixed block 17. A sliding groove 20 is formed in the receiving block 19. Two groups of rollers 21 are rotatably installed at the lower end of the fixed block 17. The rollers 21 roll in the sliding groove 20. This structure enables the mounting frame 4 to move forward so that the camshaft 3 can be placed on the receiving block 19, increasing the stability when the camshaft 3 is demolded.

[0025] Furthermore, the receiving block 19 is made of rubber material, and the upper side of the receiving block 19 is recessed towards the center. This structure enables the device to be placed more stably, and the camshaft 3 placed on the receiving block 19 can be more stable under the guidance of the receiving block 19.

[0026] Working principle: When demolding is required, push the mounting frame 4. At this time, the rollers 21 roll in the sliding groove 20, and then press down the pressing plate 16 to make the slider 10 open relatively, so that the clamping plate 5 opens. Then align the engaging groove 6 with both ends of the camshaft 3, and release the pressing plate 16. At this time, under the action of the spring 9 rebounding, the clamping plate 5 clamps the camshaft 3. Then lift the mounting frame 4 to separate the camshaft 3 from the lower mold 1. At this time, the insertion block 18 moves relative to the receiving block 19, and then pull the mounting frame 4 to make the camshaft 3 located above the receiving block 19. Finally, press down the pressing plate 16 to make the clamping plate 5 open relatively so that the camshaft 3 falls into the receiving block 19. The above is the entire working principle of the present invention.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A camshaft forging die, comprising a lower die (1), an upper die (2) being arranged on the lower die (1), characterized in that: A camshaft (3) is arranged between the lower die (1) and the upper die (2); a mounting frame (4) is arranged on the front side of the camshaft (3); a clamping plate (5) is movably mounted on the mounting frame (4); a clamping groove (6) is provided on the opposite side of the clamping plate (5); two ends of the camshaft (3) are clamped in the clamping groove (6); an opening mechanism is arranged on the mounting frame (4); and a displacement mechanism is arranged on the mounting frame (4).

2. A camshaft forging die according to claim 1, characterized in that: The engaging grooves (6) are provided in multiple groups and the sizes of the engaging grooves (6) are different. A loading tube (7) is provided at the front end of the clamping plate (5). An insertion rod (8) is movably inserted in the loading tube (7). The insertion rod (8) is fixedly connected to the clamping plate (5), and a spring (9) is sleeved on the insertion rod (8).

3. A camshaft forging die according to claim 1, characterized in that: The opening mechanism comprises a slider (10) fixedly mounted on the front end of the clamping plate (5), two groups of limit rods (11) fixedly mounted in the mounting frame (4), two groups of limit holes (12) opened on the slider (10), the limit rods (11) inserted in the limit holes (12) and movable, an articulated rod (13) hinged on the upper end of the slider (10), a pressure plate (16) hinged on the upper sides of the two groups of articulated rods (13), a mounting block (14) fixedly mounted at the center position of the mounting frame (4), a guide rod (15) fixedly mounted on the mounting block (14), and the pressure plate (16) inserted on the guide rod (15) and movable.

4. A camshaft forging die according to claim 1, characterized in that: A fixing block (17) is arranged on the lower side of the mounting frame (4), and an inserting block (18) is fixedly installed on the lower end of the mounting frame (4), wherein the inserting block (18) is inserted into the fixing block (17).

5. The camshaft forging die according to claim 1, characterized in that: The displacement mechanism comprises a receiving block (19), the receiving block (19) being arranged at the lower side of the fixed block (17), a sliding groove (20) being provided on the receiving block (19), two groups of rollers (21) being rotatably mounted on the lower end of the fixed block (17), and the rollers (21) rolling in the sliding groove (20).

6. A camshaft forging die according to claim 5, characterized in that: The receiving block (19) is made of rubber material, and the upper side of the receiving block (19) is concave toward the center.

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