Uniform cooling and lubricating device of deep hole rapid forging forming die

Abstract

The utility model relates to a uniform cooling and lubricating device of a deep hole rapid forging forming die. The die comprises a forming punch, a forming lower die and an ejector rod, a die cavity is formed in the upper portion of the forming lower die, the forming punch is in a T shape, the lower portion of the forming punch can be inserted into the die cavity, an ejector rod die cavity communicated with the die cavity is formed below the die cavity, the diameter of the ejector rod die cavity is smaller than that of the die cavity, and the ejector rod is arranged in the ejector rod die cavity and comprises a top disc and a supporting rod. The top disc is arranged at the top of the supporting rod and located at the bottom of the mold cavity, the supporting rod can be embedded into the ejector rod mold cavity, the diameter of the top disc is smaller than that of the mold cavity and larger than that of the ejector rod mold cavity, and a water outlet groove is formed in the side face of the upper portion of the supporting rod. A water inlet pipe is arranged above the top of the lower forming die. The device has the advantages of being simple in structure, convenient to operate, high in production efficiency, low in cost and capable of achieving automatic operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the improved design of forming die, especially relates to a uniform cooling and lubricating device of deep hole rapid forging forming die. BACKGROUND

[0002] Deep hole forging forming is a special forming method in extrusion forming, and the deep hole forging refers to the cylindrical forging with a hole depth greater than 500mm. When the deep hole forging is formed, the general four-column press machine is slow in forming speed, so that the temperature of the blank is rapidly lost in the extrusion process. The punch and the inner cavity wall of the die are in contact with the high-temperature blank for a long time, which causes the temperature of the punch and the die to rise and the hardness to decrease, resulting in the collapse of the punch and the damage of the die. The electric screw type press machine with high speed cannot extrude the cylindrical forging with high height due to the problems of stroke limitation and the inability to continuously maintain the load.

[0003] Therefore, the deep hole forging needs to be produced by a special deep hole forging press machine for extrusion forming. Referring to Figure 1 , the forming principle of the deep hole forging press machine is to lift the punch to a high position and store energy by using the provided energy storage tank. When extruding, the energy storage tank releases pressure, and the punch rapidly falls from the high point. Through the high kinetic energy and the sharp punch, the blank is rapidly deformed in an instant, and the extrusion is completed. The punch will produce intense friction and impact during the deep hole rapid extrusion. The current cooling method is to manually hold the spray head for cooling. The cooling and lubrication can only be achieved by holding the oil brush and the spray head by hand. The disadvantages are that the cooling is uneven, the cooling time is not fixed, and the automation cannot be realized. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems in the background art, the utility model provides a uniform cooling and lubricating device of deep hole rapid forging forming die, which has the advantages of simple structure, convenient operation, high production efficiency, low cost and automatic operation.

[0005] The technical solution of the utility model is as follows: the utility model is a uniform cooling and lubricating device of deep hole rapid forging forming die. The uniform cooling and lubricating device of deep hole rapid forging forming die comprises a forming punch, a forming lower die and a ejector rod. The upper part of the forming lower die is provided with a die cavity. The forming punch is T-shaped, and the lower part can be inserted into the die cavity. A die cavity is arranged below the die cavity, and the die cavity is communicated with the die cavity. The diameter of the die cavity is greater than that of the die cavity. A ejector rod cavity is arranged in the die cavity. The diameter of the ejector rod cavity is less than that of the die cavity. The ejector rod cavity is provided with a ejector rod. The ejector rod comprises a top disc and a support rod. The top disc is arranged on the top of the support rod. The top disc is located at the bottom of the die cavity. The support rod can be embedded into the ejector rod cavity. The diameter of the top disc is less than that of the die cavity and greater than that of the ejector rod cavity. A water outlet groove is arranged on the side surface of the upper part of the support rod. A water outlet pipe is arranged in the forming lower die at the position corresponding to the water outlet groove. A water inlet pipe is arranged above the top of the forming lower die.

[0006] Further, the uniform cooling and lubricating device of the deep-hole rapid forging forming die further comprises a circulating water cooling device, which is in communication with the water outlet pipe and the water inlet pipe respectively.

[0007] Further, the water outlet groove is arranged around the upper side of the support rod.

[0008] Further, the water pipe support is arranged above the top of the lower forming die, and the water inlet pipe is arranged on the water pipe support.

[0009] Further, the uniform cooling and lubricating device of the deep-hole rapid forging forming die further comprises a lubricating device, which comprises a lubricating manipulator and a lubricating brush, and the lubricating brush is arranged at the front end of the lubricating manipulator.

[0010] Further, the lubricating brush is composed of two semicircular brushes, and the lubricating manipulator can control the opening and closing of the two semicircular brushes.

[0011] Further, the lubricating manipulator is provided with a spray head.

[0012] The beneficial effects of the utility model are as follows:

[0013] The uniform cooling and lubricating device of the deep-hole rapid forging forming die provided by the utility model changes the structure of the deep-hole extrusion forming die, increases the water inlet pipe and the water outlet pipe, regards the die cavity of the lower forming die as a cooling container, and performs rapid cooling on the forming punch and the lower forming die in the extrusion forming beat interval time; meanwhile, the utility model further increases a lubricating ring brush tool to uniformly lubricate the forming punch. Thus, the cooling and lubrication of the punch are ensured to be uniform, and the service life of the punch is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the die structure before improvement;

[0015] Figure 2 It is a schematic view of the structure of the utility model;

[0016] Figure 3 It is a cooling schematic view of the utility model;

[0017] Figure 4 It is a die drainage process and lubrication process schematic view of the utility model.

[0018] The following is the explanation of the reference signs:

[0019] 01, forming punch; 02, lower forming die; 03, ejector rod; 04, water pipe support; 05, lubricating brush; 06, lubricating manipulator; 07, cooling water; 08, water outlet pipe; 09, water inlet pipe; 10, cooling water circulating device. DETAILED DESCRIPTION

[0020] The overall scheme of the utility model will be further explained in detail in combination with the drawings and specific embodiments as follows:

[0021] Referring to Figure 2 The structure of the specific embodiment of the utility model comprises a forming punch 01, a forming lower die 02, a ejector rod 03, a circulating water cooling device 10 and a lubricating device, the upper part of the forming lower die 02 is provided with a die cavity, the forming punch 01 is T-shaped, the lower part can be inserted into the die cavity, the lower part of the die cavity is provided with a ejector rod die cavity which is communicated with the die cavity, the die cavity and the ejector rod die cavity are coaxially arranged, the diameter of the ejector rod die cavity is smaller than the diameter of the die cavity, the ejector rod die cavity is provided with the ejector rod 03, the ejector rod 03 comprises a top disc and a support rod, the top disc is arranged at the top of the support rod, the top disc is located at the bottom of the die cavity, the support rod can be embedded into the ejector rod die cavity, the diameter of the top disc is smaller than the diameter of the die cavity and greater than the diameter of the ejector rod die cavity, the diameter of the support rod is the same as the diameter of the ejector rod die cavity, the upper side of the support rod is provided with a water outlet groove, in the embodiment, the water outlet groove is arranged around the upper side of the support rod. The forming lower die 02 is provided with a water outlet pipe 08 at the position corresponding to the water outlet groove, the upper part of the top of the forming lower die 02 is provided with a water inlet pipe 09, the circulating water cooling device 10 is communicated with the water outlet pipe 08 and the water inlet pipe 09 respectively. The top of the forming lower die 02 is provided with a water pipe support 04, and the water inlet pipe 09 is arranged on the water pipe support 04. The lubricating device comprises a lubricating mechanical hand 06 and a lubricating brush 05, and the lubricating brush 05 is arranged at the front end of the lubricating mechanical hand 06. In the embodiment, the lubricating brush 05 is composed of two semicircular brushes, and the lubricating mechanical hand 06 can control the opening and closing of the two semicircular brushes. The lubricating mechanical hand 06 is further provided with a spray head.

[0022] The cooling water circulating device 10 and the lubricating mechanical hand 06 both adopt the existing structure.

[0023] The structure improvement of the utility model is as follows:

[0024] 1) Improvement of the cooling system:

[0025] The utility model increases the circulating cooling system, the circulating cooling system contains circulating water cooling device 10, water inlet pipe 09, water outlet pipe 08 and water pipe support 04, can realize the automatic filling and discharge of cooling water 07, the cooling of cooling water 07 and circulation.

[0026] 2) Improvement of the forming lower die 02 and the ejector rod 03:

[0027] In order to be able to realize the filling and discharge of cooling water 07, the utility model has the following improvements: first, the water pipe support 04 is fixed on the upper end surface of the forming lower die 02, and the position is adjusted to ensure that the cooling water can be smoothly filled into the mold cavity of the forming lower die 02 through the water inlet pipe 09; second, the diameter of the top disc of the head of the ejector rod 03 is reduced, and the diameter of the ejector rod cavity of the forming lower die 02 is also reduced, and the gap between the two sizes is matched. The top disc of the reduced head of the ejector rod 03 can ensure that the water can flow down smoothly around the top disc of the head of the ejector rod 03 when the ejector rod 03 is ejected. Third, the diameter of the upper part of the support rod of the ejector rod 03 is reduced, forming a water outlet groove, to ensure that the water can flow into the water outlet smoothly around the upper part of the support rod of the ejector rod 03. Fourth, a downwardly inclined water outlet is added at the position corresponding to the water outlet groove on the side surface of the mold cavity of the forming lower die 02, and the water outlet is connected with the water outlet pipe 08.

[0028] 3) Improvement of lubricating tool:

[0029] The current lubricating method is manual oil brush lubrication, which has the disadvantages of uneven lubrication, non-fixed lubrication time and difficulty in automation. The utility model adds a lubricating mechanical hand 06 (openable) and a lubricating brush 05 tool; a pair of half-round lubricating brushes 05 that can be opened and closed are installed on the lubricating mechanical hand 06 for lubricating the forming punch 01; a spray head that can spray lubricant is installed on the lubricating mechanical hand 06 for lubricating the mold cavity of the forming lower die 02.

[0030] The working principle of the utility model is as follows:

[0031] 1) Referring to Figure 2 When the deep hole extrusion operation is completed, the ejector rod 03 falls back to the original position, the inductor receives the signal, and the circulating cooling device 10 starts to inject appropriate cooling water 07 into the forming lower die 02. The figure shows the case of injecting appropriate water.

[0032] 2) Referring to Figure 3 , the forming punch 01 falls to the appropriate position to ensure that the entire forming punch 01 can be immersed in water for cooling, and the forming punch 01 returns to a certain height, and the lubricating mechanical hand 06 starts to move forward, and the two half-round lubricating brushes 05 wrap the forming punch 01, and the forming punch 01 continues to return, and the punch lubrication is completed. The lubricating mechanical hand 06 rotates 180° to spray the mold cavity of the forming lower die 02 with the spray head, and returns to the original position after completion. It can be fully and uniformly cooled.

[0033] 3) Referring to Figure 4At the same time of the return of the forming punch 01, the ejector rod 03 is lifted to a certain height, ensuring that the water can flow smoothly from the two sides of the top disc and the water outlet groove into the water outlet pipe 08, and the water is discharged from the water outlet into the cooling water circulating device 10. After the water is discharged, the ejector rod 03 falls back to the original position. When the equipment returns, the lubricating mechanical hand 06 will wrap the forming punch 01 with two semicircular lubricating brushes 05, and the lubrication of the forming punch 01 is completed as the equipment returns.

[0034] 4) Similarly, the cooling and lubrication of the forming punch 01 and the cavity of the forming lower die 02 can be realized.

[0035] The technical content not specifically described in the content of the utility model and the above-mentioned embodiments is the same as the prior art.

[0036] The above is only a specific implementation manner disclosed by the utility model, but the protection scope of the utility model disclosed is not limited to this, and the protection scope of the utility model disclosed should be subject to the protection scope of the claims.

Claims

1. A uniform cooling and lubricating device for a deep hole rapid forging forming die, the uniform cooling and lubricating device for a deep hole rapid forging forming die comprising a forming punch, a forming lower die, and a ejector rod, the forming lower die being provided with a die cavity at the upper portion, the forming punch being T-shaped, the lower portion being capable of being inserted into the die cavity, a ejector rod die cavity being provided below the die cavity and being communicated with the die cavity, the ejector rod die cavity being smaller in diameter than the die cavity, and the ejector rod die cavity being provided with an ejector rod, characterized in that: The ejector rod comprises an ejector disc and a supporting rod, the ejector disc is arranged on the top of the supporting rod, the ejector disc is arranged on the bottom of the cavity, the supporting rod can be embedded into the cavity of the ejector rod, the diameter of the ejector disc is smaller than the diameter of the cavity and larger than the diameter of the cavity of the ejector rod, the upper side of the supporting rod is provided with a water outlet groove, the forming lower die is provided with a water outlet pipe corresponding to the position of the water outlet groove, and the top of the forming lower die is provided with a water inlet pipe.

2. The uniform cooling and lubrication device for a deep hole quick-forging forming die according to claim 1, characterized by: The uniform cooling and lubricating device of the deep hole rapid forging forming die further comprises a circulating water cooling device which is communicated with the water outlet pipe and the water inlet pipe respectively.

3. The uniform cooling and lubrication device for a deep hole quick-forging forming die according to claim 2, characterized in that: The water outlet groove is arranged around the upper side of the supporting rod.

4. The uniform cooling and lubrication device for a deep hole quick-forging forming die according to claim 3, characterized in that: The top of the forming lower die is provided with a water pipe support, and the water inlet pipe is arranged on the water pipe support.

5. The uniform cooling and lubricating device for a deep hole quick-forging forming die according to any one of claims 1 to 4, characterized in that: The uniform cooling and lubricating device of the deep hole rapid forging forming die further comprises a lubricating device, the lubricating device comprises a lubricating mechanical hand and a lubricating brush, and the lubricating brush is arranged on the front end of the lubricating mechanical hand.

6. The uniform cooling and lubrication device for a deep hole quick-forging forming die according to claim 5, characterized by: The lubricating brush is composed of two semicircular brushes, and the lubricating mechanical hand can control the opening and closing of the two semicircular brushes.

7. The uniform cooling and lubrication device for a deep hole quick-forging forming die according to claim 6, characterized by: The lubricating mechanical hand is provided with a spray head.

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