Tool die for crankshaft of high-power gas engine

Abstract

The utility model discloses a tooling mould for a crankshaft of a high-power gas engine, which comprises a mould supporting component, a fixing component is mounted at the bottom of the mould supporting component, a mould closing component is mounted at the upper part of the mould supporting component, a shaping mould is mounted in the fixing component, and a mould clamping component is mounted at the lower part of the mould supporting component. According to the utility model, through the arrangement of the mold closing assembly and the fixing assembly, the top of the shaping mold is fixedly connected with the mold closing assembly firstly, and then the top of the shaping mold is connected with the bottom of the mold closing assembly through the reverse threaded connection relation of the screw rod and the two groups of sliding blocks; the screw rod is rotated to drive the two sets of sliding blocks to get close to or away from each other in the sliding groove, the two sets of clamping plates are driven to get close to or away from each other while the two sets of sliding blocks get close to or away from each other, and by shortening the distance between the two sets of clamping plates, the effect of rapidly clamping and fixing the shaping mold between the two sets of clamping plates is achieved; and the use efficiency of the tool mold is improved.

Description

Technical Field

[0001] This utility model relates to the field of engine crankshaft production technology, specifically to a tooling mold for high-power gas engine crankshafts. Background Technology

[0002] The engine crankshaft is a key component of an internal combustion engine, primarily responsible for converting the reciprocating motion of the piston into the rotational motion of the output shaft. It typically consists of main journals, connecting rod journals, cranks, counterweights, and front and rear ends. One main journal, one connecting rod journal, and one cranks form a crankshaft crank. The number of crankshaft cranks is equal to or half the number of cylinders. During the engine crankshaft manufacturing process, molds are used to cool and shape the crankshaft.

[0003] Existing engine crankshaft tooling molds typically use bolting or welding to fix the lower mold body to the mold base. While this provides high stability, the installation process is complex. Furthermore, crankshafts come in various specifications, requiring the tooling mold to be replaced with different fixed molds to meet the production needs of different types of engine crankshafts. The fixed molds inside traditional tooling molds cannot be quickly replaced, reducing the efficiency of tooling mold usage.

[0004] According to the disclosure number CN220862514U, a cooling and shaping mold for an engine crankshaft includes a base frame, a mold, and two positioning boxes. The top of the base frame has a groove, and the bottom of the mold is movably connected to the bottom of the groove. Positioning boxes are fixedly installed on both the front and rear sides of the mold, and the bottom of the positioning box extends through to the bottom of the groove.

[0005] The cooling and shaping mold for an engine crankshaft described above, although pre-fixed by positioning grooves and then fixed by bolts to improve the accuracy of installation and positioning, has a complex overall installation structure and the fixed position of the shaping grooves, making it difficult to adapt to a wide range of shaping molds. Therefore, we need to propose a tooling mold for high-power gas engine crankshafts. Utility Model Content

[0006] The purpose of this invention is to provide a tooling mold for a high-power gas engine crankshaft. First, the top of the shaping mold is fixedly connected to the mold closing assembly. Through the setting of the fixing assembly, the screw and two sets of sliding blocks are connected by reverse threads. Rotating the screw causes the two sets of sliding blocks to move closer or further apart inside the sliding groove. At the same time, the two sets of sliding blocks move closer or further apart, causing the two sets of clamping plates to move closer or further apart. By shortening the distance between the two sets of clamping plates, the shaping mold between the two sets of clamping plates can be quickly clamped and fixed, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tooling mold for a high-power gas engine crankshaft, comprising a mold support assembly, a fixing assembly installed at the bottom of the mold support assembly, a mold closing assembly installed at the top of the mold support assembly, a shaping mold installed inside the fixing assembly, the top of the shaping mold connected to the bottom of the mold closing assembly, the mold support assembly including a mold base, a sliding groove through which a sliding groove is formed at the top of the mold base, the fixing assembly including a screw rod through which a screw rod is rotatably installed, two sets of sliding blocks being threadedly connected to the outer arc surface of the screw rod, one end of each set of sliding blocks being slidably installed inside the sliding groove, and a set of clamping plates being fixedly installed on the top of each set of sliding blocks, the shaping mold being placed on the opposite side of the two sets of clamping plates.

[0008] Preferably, a motor is fixedly bolted to one end of the mold base, and the output shaft of the motor is keyed to one end of the screw.

[0009] Preferably, a set of support rods is fixedly installed at each of the four top corners of the mold base, and a top plate is fixedly installed on the top of the four sets of support rods.

[0010] Preferably, the mold closing assembly includes an electric push rod fixedly installed at the bottom of the top plate, and one end of the electric push rod is fixedly installed with a mounting plate.

[0011] Preferably, the shaping mold includes a lower mold body placed on opposite sides of two sets of clamping plates, an upper mold body is movably mounted on the top of the lower mold body, the top of the upper mold body is fixedly bolted to the bottom of the mounting plate, and a set of shaping grooves are symmetrically opened on the top of the lower mold body and the bottom of the upper mold body.

[0012] Preferably, two sets of limiting rods are fixedly installed on the top of the lower mold body, and the top ends of the two sets of limiting rods extend movably through to the top of the upper mold body, and a set of limiting plates are fixedly installed on the top ends of the limiting rods.

[0013] Preferably, the top of the upper mold body is provided with a liquid injection groove and a venting groove, and the liquid injection groove and the venting groove are respectively connected to the inner cavity of the shaping groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention, through the setting of a mold clamping assembly and a fixing assembly, firstly fixes the top of the mold to the mold clamping assembly. Then, by utilizing the reverse threaded connection between the screw and two sets of sliding blocks, rotating the screw causes the two sets of sliding blocks to move closer or further apart inside the sliding groove. Simultaneously, the two sets of sliding blocks move closer or further apart, causing the two sets of clamping plates to move closer or further apart. By shortening the distance between the two sets of clamping plates, the effect of quickly clamping and fixing the mold between the two sets of clamping plates is achieved, thereby improving the efficiency of tooling and mold use.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mounting structure of the fixing component of this utility model;

[0019] Figure 3 This is an exploded view of the fixing component of this utility model;

[0020] Figure 4 This is an exploded structural diagram of the molding die of this utility model.

[0021] In the diagram: 1. Mold support assembly; 11. Mold base; 12. Support rod; 13. Top plate; 14. Sliding groove; 2. Fixing assembly; 21. Motor; 22. Screw; 23. Sliding block; 24. Clamping plate; 3. Mold closing assembly; 31. Electric push rod; 32. Mounting plate; 4. Shaping mold; 41. Lower mold body; 42. Limiting rod; 43. Upper mold body; 44. Limiting plate; 45. Shaping groove; 46. Injection groove; 47. Venting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides a tooling mold for a high-power gas engine crankshaft, including a mold support assembly 1, a fixing assembly 2 installed at the bottom of the mold support assembly 1, a mold closing assembly 3 installed at the top of the mold support assembly 1, a shaping mold 4 installed inside the fixing assembly 2, and the top of the shaping mold 4 connected to the bottom of the mold closing assembly 3. The mold support assembly 1 includes a mold base 11, and a sliding groove 14 is provided through the top of the mold base 11. The fixing assembly 2 includes a screw 22 that is rotatably installed through the sliding groove 14. Two sets of sliding blocks 23 are threadedly connected to the outer arc surface of the screw 22. One end of each set of sliding blocks 23 is slidably installed inside the sliding groove 14, and a set of clamping plates 24 are fixedly installed on the top of each set of sliding blocks 23. The shaping mold 4 is placed on the opposite side of the two sets of clamping plates 24.

[0024] In use, the shaping mold 4 is first connected to the mold clamping assembly 3. Through the setting of the fixing assembly 2, the screw 22 and the two sets of sliding blocks 23 are connected by reverse threads. Rotating the screw 22 causes the two sets of sliding blocks 23 to move closer or further apart inside the sliding groove 14. At the same time, the two sets of sliding blocks 23 move closer or further apart, causing the two sets of clamping plates 24 to move closer or further apart. By shortening the distance between the two sets of clamping plates 24, the shaping mold 4 between the two sets of clamping plates 24 can be quickly clamped and fixed. Moreover, the shaping mold 4 is an integral structure and does not require secondary positioning.

[0025] A motor 21 is fixedly bolted to one end of the mold base 11. The output shaft of the motor 21 is keyed to one end of the screw 22. When the motor 21 is started, the screw 22 rotates stably inside the sliding groove 14, realizing the effect of automated operation of the fixing component 2. This avoids the situation where the fixing component 2 is not firmly clamped and fixed to the shaping mold 4 due to the small torque of manual rotation.

[0026] A set of support rods 12 is fixedly installed at each of the four top corners of the mold base 11. A top plate 13 is fixedly installed on the top of the four sets of support rods 12. The support rods 12 and the top plate 13 are used to achieve the integrity of the mold support assembly 1. At the same time, the top plate 13 is used to install the mold closing assembly 3 to meet the usage effect of the tooling mold.

[0027] The mold clamping assembly 3 includes an electric push rod 31 fixedly installed at the bottom of the top plate 13. One end of the electric push rod 31 is fixedly installed with a mounting plate 32, so that starting the electric push rod 31 can drive the mounting plate 32 to move up and down inside the tooling mold.

[0028] The shaping mold 4 includes a lower mold body 41 placed on opposite sides of two sets of clamping plates 24. An upper mold body 43 is movably mounted on the top of the lower mold body 41. The top of the upper mold body 43 is fixedly bolted to the bottom of the mounting plate 32. A set of shaping grooves 45 are symmetrically opened on the top of the lower mold body 41 and the bottom of the upper mold body 43. Through the connection relationship between the lower mold body 41, the upper mold body 43, and the shaping grooves 45, the effect of shaping the engine crankshaft is achieved.

[0029] Two sets of limiting rods 42 are fixedly installed on the top of the lower mold body 41. The top ends of the two sets of limiting rods 42 extend to the top of the upper mold body 43. A set of limiting plates 44 are fixedly installed on the top ends of the limiting rods 42. With the setting of the limiting rods 42, the upper mold body 43 always moves up and down along the outer arc surface of the limiting rods 42, which solves the cumbersome problem of secondary positioning when installing the upper mold body 43 and the lower mold body 41 in the traditional way, improves the stability of the movement of the upper mold body 43 when closing and demolding, and prevents the upper mold body 43 from slipping off the top of the limiting rods 42.

[0030] The top of the upper mold body 43 is provided with a liquid injection groove 46 and an air venting groove 47. The liquid injection groove 46 and the air venting groove 47 are connected to the inner cavity of the shaping groove 45. The crankshaft raw material liquid is discharged into the interior of the shaping groove 45 through the liquid injection groove 46, and the air inside the shaping groove 45 is discharged through the air venting groove 47. At this time, the interior of the shaping groove 45 is filled with crankshaft raw material liquid, waiting for the liquid to cool down, so as to achieve the effect of crankshaft shaping.

[0031] In practical use, first, place the shaping mold 4 centered on the top of the mold base 11. Then, start the electric push rod 31 to move the mounting plate 32 downwards. When the bottom of the mounting plate 32 is in contact with the top of the upper mold body 43, turn off the electric push rod 31. Fix the top of the lower mold body 41 to the bottom of the mounting plate 32 with bolts. Through the setting of the fixing component 2, and using the reverse thread connection between the screw 22 and the two sets of sliding blocks 23, rotating the screw 22 causes the two sets of sliding blocks 23 to move closer or further apart inside the sliding groove 14. Alternatively, while moving away from each other, the two sets of clamping plates 24 can be moved closer or further apart. By shortening the distance between the two sets of clamping plates 24, the shaping mold 4 between the two sets of clamping plates 24 can be quickly clamped and fixed. After the upper mold body 43 and the lower mold body 41 are attached, the crankshaft raw material liquid is discharged into and fills the interior of the shaping groove 45 through the liquid injection groove 46. After cooling, the crankshaft is shaped. Then, the electric push rod 31 is started to drive the upper mold body 43 to move upward. The complete crankshaft remains inside the shaping groove 45 of the lower mold body 41. Then, the crankshaft is removed to achieve the demolding effect.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling die for a crankshaft of a high-power gas engine, characterized by: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4). The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4). The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

2. A tooling die for a crankshaft of a high power gas engine according to claim 1, characterized in that: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

3. A tooling die for a crankshaft of a high power gas engine according to claim 1, characterized in that: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

4. A tooling die for a crankshaft of a high power gas engine according to claim 1, characterized in that: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

5. A tooling die for a crankshaft of a high power gas engine according to claim 1, characterized in that: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

6. A tooling die for a crankshaft of a high power gas engine according to claim 5, characterized in that: The utility model provides a mould support subassembly (1) is provided with fixed subassembly (2) and mould closing subassembly (3), fixed subassembly (2) is provided with shaping mould (4), shaping mould (4) is connected with the bottom of mould closing subassembly (3) on the top, and the bottom of mould closing subassembly (3) is connected with the top of shaping mould (4).

7. A tooling die for a crankshaft of a high power gas engine according to claim 5, characterized in that: ​

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