Engineering machinery hydraulic oil cylinder bottom forging die

Abstract

The utility model discloses an engineering machinery hydraulic oil cylinder bottom forging die which comprises fixed dies at the left end and the right end, a movable die and a movable plate, the movable die and the movable plate are installed at the upper ends of the fixed dies in a clamped mode, the movable plate is connected with a fixed block in a clamped mode, and the movable plate is combined with a fixed rod, a fixed plate and a fixed cap to be used for connecting and fixing the fixed dies and the movable die. The movable plates are arranged on the side face of the movable mold at equal angles, the separation mechanism is used for locking the fixed molds on the left side and the right side, and a bottom plate used for supporting is arranged at the lower ends of the fixed molds. According to the cylinder bottom forging die for the hydraulic oil cylinder of the engineering machinery, stable locking between the fixed dies and the movable die is facilitated, the two fixed dies are conveniently separated by combining with the arrangement of the separating mechanism, the cylinder bottom is prevented from being clamped in the fixed dies, and the formed cylinder bottom is conveniently taken out from the fixed dies; and the fixed mold and the bottom plate can be conveniently locked.

Description

Technical Field

[0001] The utility model relates to the technical field related to forging of a hydraulic oil cylinder bottom, in particular to a forging die for a hydraulic oil cylinder bottom of an engineering machinery. Background Art

[0002] Hydraulic cylinder refers to a key component in the hydraulic system that converts the pressure energy of hydraulic oil into mechanical energy to achieve reciprocating linear motion or swinging motion. In the process of forging the bottom of the hydraulic cylinder, it is necessary to use the corresponding forging die to complete it;

[0003] Referring to the Chinese patent authorization announcement number CN215845474U, the authorization announcement date is 2022.02.18, which discloses a forging die assembly, including a reverse die and a forward die; the preform obtained by forging in the reverse die is flipped 180 degrees around a straight line parallel to the horizontal plane, and then set in the forward die for secondary forging. Compared with the prior art, the forging die assembly of the utility model can facilitate the discharge of air in the cavity, ensure the complete filling of the blank in the cavity, and reduce the scrap rate;

[0004] However, the prior art has the problem that the connection between the fixed mold and the movable mold is not tight, and when demolding after molding, the cylinder bottom is easily stuck in the fixed mold, making it difficult to remove it. For example, the comparative patents listed above have this problem.

[0005] Therefore, we proposed a forging die for the bottom of hydraulic cylinder of engineering machinery to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a forging die for the bottom of a hydraulic cylinder of an engineering machinery, so as to solve the problems in the prior art proposed in the above-mentioned background technology that the connection between the fixed die and the movable die is not tight, and when demolding after forming, the bottom of the cylinder is easily stuck in the fixed die, making it difficult to remove.

[0007] To achieve the above object, the utility model provides the following technical solutions: a forging die for the bottom of a hydraulic cylinder of an engineering machinery, comprising a fixed die at left and right ends and a movable diaphragm mounted on the upper end of the fixed die;

[0008] Also includes:

[0009] A movable plate, wherein the movable plate is engaged with the fixed block, and the movable plate is combined with the fixing rod, the fixing plate and the fixing cap to connect and fix the fixed mold and the movable film, and the movable plate is arranged at equal angles on the side of the movable film;

[0010] The separation mechanism is used to lock the fixed molds on the left and right sides, and the lower end of the fixed mold is provided with a bottom plate for support.

[0011] Preferably, a fixed block is fixedly connected to the side surface of the movable membrane, and the diameter of the outer side of the fixed block is smaller than the slot size at the lower end of the movable plate, and the movable plate and the movable membrane are arranged in a close fit.

[0012] Preferably, a fixing rod is fixedly connected to the lower end of the movable plate, and the movable plate drives the fixing rod to be inserted into the middle of the fixed plate, and the fixed plate is fixedly connected to the side surface of the upper end of the fixed mold.

[0013] Preferably, a fixing cap for limiting position is threadedly connected to the lower end of the fixing rod, and the fixing cap is fitted on the lower end surface of the fixing plate.

[0014] Preferably, the separation mechanism includes connecting bolts threadedly connected to the left and right ends of the bottom plate, a movable rod for connection, connecting grooves opened at the left and right ends of the bottom plate, and a ball bearing rotatably connected to the bottom of the bottom plate.

[0015] Preferably, the connecting bolt is rotatably connected to the fixed mold, and the connecting bolt drives the fixed mold to form a telescopic structure in the bottom plate, and the lower end of the fixed mold is fitted with the ball.

[0016] Preferably, the balls are arranged at equal intervals at the bottom of the bottom plate, and fixing grooves are provided at equal angles at the left and right ends of the bottom plate.

[0017] Preferably, the lower end of the connecting bolt is connected to the fixing frame via a slot, and a fixing pin is fixedly connected to the inner side of the fixing frame, and the fixing pin is engaged in the fixing slot at a corresponding position, and the fixing frame and the base plate are fixed by bolts.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the forging die for the bottom of the hydraulic cylinder of the engineering machinery is provided with a movable plate, a fixed rod, a fixed plate and a fixed cap, and the movable plate, the fixed rod, the fixed plate and the fixed cap are provided with multiple groups, so that the fixed die and the movable film are stably locked. In combination with the setting of the separation mechanism, the two fixed dies are conveniently separated to prevent the cylinder bottom from being stuck in the fixed die, and the formed cylinder bottom is conveniently taken out from the fixed die. In combination with the setting of the fixed frame and the fixed pin, the fixed die and the bottom plate are conveniently locked, and the stability is high.

[0019] 1. It is equipped with a movable plate, a fixed rod, a fixed plate and a fixed cap. Through the arrangement of the movable plate, the fixed rod, the fixed plate and the fixed cap, it is convenient to stably lock the fixed mold and the movable film, and the fastening is good;

[0020] 2. A separation mechanism is provided, which includes a connecting bolt, a movable rod, a connecting groove and a ball. Through the setting of the separation mechanism, the two fixed molds can be separated, so that the bottom of the cylinder after molding can be taken out;

[0021] 3. A fixing frame and a fixing pin are provided. The fixing frame and the connecting bolt are connected by a slot. The fixing frame drives the fixing pin to engage in the fixing slot, thereby further locking the fixed mold and the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 This is a front view structural diagram of the connection between the fixed block, the movable plate and the fixed rod of the utility model;

[0025] Figure 4 This is a top view structural diagram of the connection between the movable membrane, the fixed block and the movable plate of the utility model;

[0026] Figure 5 The utility model is a schematic diagram of the overall structure of the fixed mold, the movable membrane, the bottom plate, the connecting bolt and the movable rod.

[0027] In the figure: 1. fixed mold; 2. movable membrane; 3. fixed block; 4. movable plate; 5. fixed rod; 6. fixed plate; 7. fixed cap; 8. bottom plate; 9. separation mechanism; 10. connecting bolt; 11. movable rod; 12. connecting groove; 13. ball bearing; 14. fixed frame; 15. fixing pin; 16. fixing groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 The utility model provides a technical solution: a forging die for a bottom of a hydraulic cylinder of an engineering machinery, comprising a fixed die 1, a movable diaphragm 2, a fixed block 3, a movable plate 4, a fixed rod 5, a fixed plate 6, a fixed cap 7, a bottom plate 8, a separation mechanism 9, a connecting bolt 10, a movable rod 11, a connecting groove 12, a ball 13, a fixed frame 14, a fixed pin 15 and a fixed groove 16.

[0030] When using the engineering machinery hydraulic cylinder bottom forging die, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom material of the hydraulic oil cylinder used for forging is placed between the fixed die 1 and the movable film 2 for forming processing. At the same time, the fixed die 1 and the movable film 2 are connected by the movable plate 4, the fixed rod 5, the fixed plate 6 and the fixed cap 7. Moreover, the movable plate 4, the fixed rod 5, the fixed plate 6 and the fixed cap 7 are all arranged at equal angles between the fixed die 1 and the movable film 2, so as to facilitate the stable connection and fixation between the fixed die 1 and the movable film 2, and the fastening is good to prevent loosening. When the bottom forming processing of the cylinder is completed, the fixing cap 7 threadedly connected to the lower end of the fixing rod 5 can be rotated to disengage the fixing cap 7 from the fixing rod 5, thereby releasing the limit between the fixing rod 5 and the fixing plate 6, and then the movable plate 4 is pulled upward to move between the movable plate 4 and the fixed block 3, and the movable plate 4 drives the fixing rod 5 to move out of the fixing plate 6;

[0031] When the movable plate 4 moves upward so that the fixed block 3 is located at the lower end of the movable plate 4, the slot size at the lower end of the movable plate 4 is larger than the diameter size of the outer side of the fixed block 3, and then the movable plate 4 is pulled outward to disengage the movable plate 4 from the fixed block 3, thereby releasing the limit between the movable film 2 and the fixed mold 1, and then the movable film 2 is pulled upward to remove the movable film 2 from the upper end of the fixed mold 1. After removal, the movable film 2 is combined with the fixed mold 1. Figure 2 and Figure 5 As shown, the separation mechanism 9 includes a connection bolt 10 threadedly connected to the left and right ends of the bottom plate 8, a movable rod 11 for connection, a connection groove 12 opened at the left and right ends of the bottom plate 8, and a ball 13 rotatably connected to the bottom of the bottom plate 8;

[0032] First, loosen the bolts connecting the fixing frame 14 and the connecting bolt 10, loosen the limit between the fixing frame 14 and the connecting bolt 10, and then pull the fixing frame 14 outward, the fixing frame 14 drives the fixing pin 15 to move out of the fixing groove 16, at this time, the fixing frame 14 releases the lock of the connecting bolt 10, and then by rotating the connecting bolt 10, the connecting bolt 10 and the bottom plate 8 are threadedly connected, and the connecting bolt 10 and the fixed mold 1 are rotated at the same time, thereby driving the fixed mold 1 to retract in the bottom plate 8, the lower end of the fixed mold 1 and the ball 13 are fitted, the fixed mold 1 drives the ball 13 and the bottom plate 8 to rotate, and the fixed mold 1 drives the movable rod 11 to slide in the connecting groove 12 in combination with the fixed mold 1, so as to improve the stability of the fixed mold 1 moving in the bottom plate 8, through the above operation, it is convenient to separate the fixed mold 1 and the fixed mold 1 on the left and right sides of the bottom plate 8, to prevent the cylinder bottom from being stuck in the fixed mold 1, so that the cylinder bottom can be taken more conveniently, which is highly practical.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forging die for a bottom of a hydraulic cylinder of an engineering machinery, comprising a fixed die (1) at left and right ends and a movable diaphragm (2) mounted on the upper end of the fixed die (1); It is characterized in that Also includes: A movable plate (4), wherein the movable plate (4) is snap-connected with the fixed block (3), and the movable plate (4) is combined with a fixed rod (5), a fixed plate (6) and a fixed cap (7) to connect and fix the fixed mold (1) and the movable film (2), and the movable plate (4) is arranged at equal angles on the side of the movable film (2); A separation mechanism (9) is used to lock the fixed molds (1) on the left and right sides, and a bottom plate (8) for support is provided at the lower end of the fixed mold (1).

2. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 1, characterized in that: A fixed block (3) is fixedly connected to the side of the movable membrane (2), and the diameter of the outer side of the fixed block (3) is smaller than the slot size at the lower end of the movable plate (4), and the movable plate (4) and the movable membrane (2) are arranged in a close fit.

3. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 2, characterized in that: The lower end of the movable plate (4) is fixedly connected to a fixed rod (5), and the movable plate (4) drives the fixed rod (5) to be inserted into the middle of the fixed plate (6), and the fixed plate (6) is fixedly connected to the side surface of the upper end of the fixed mold (1).

4. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 3, characterized in that: The lower end of the fixing rod (5) is threadedly connected with a fixing cap (7) for limiting position, and the fixing cap (7) is arranged in close contact with the lower end surface of the fixing plate (6).

5. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 1, characterized in that: The separation mechanism (9) comprises a connection bolt (10) threadedly connected to the left and right ends of the bottom plate (8), a movable rod (11) for connection, a connection groove (12) opened at the left and right ends of the bottom plate (8), and a ball (13) rotatably connected to the bottom of the bottom plate (8).

6. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 5, characterized in that: The connecting bolt (10) is rotatably connected to the fixed mold (1), and the connecting bolt (10) drives the fixed mold (1) to form a telescopic structure in the bottom plate (8), and the lower end of the fixed mold (1) and the ball (13) are arranged in a close fit.

7. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 5, characterized in that: The balls (13) are arranged at equal intervals at the bottom of the bottom plate (8), and fixing grooves (16) are provided at equal angles at the left and right ends of the bottom plate (8).

8. The forging die for the bottom of a hydraulic cylinder of an engineering machinery according to claim 6, characterized in that: The lower end of the connecting bolt (10) is connected to the fixing frame (14) by a slot, and a fixing pin (15) is fixedly connected to the inner side of the fixing frame (14), and the fixing pin (15) is engaged in a fixing slot (16) at a corresponding position, and the fixing frame (14) and the bottom plate (8) are fixed by bolts.

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