Metal product cold heading blank die

Abstract

The utility model relates to the technical field of cold heading dies, in particular to a metal product cold heading blank die which comprises a die body. The die body comprises a base, a tray arranged on the upper side face of the base, a base plate embedded in the tray, a lower die plate fixed to the upper side face of the base plate, an upper die plate oppositely arranged above the lower die plate, a cold heading piece arranged in the middle of the upper side face of the upper die plate, and an annular cooling pipe surrounding the peripheral side of the upper portion of the cold heading piece. The annular cooling pipe is arranged on the upper die plate, the water inlet pipe and the water outlet pipe are connected with the annular cooling pipe, the stamping rod is fixed to the upper end of a cold heading piece, the panel is arranged above the upper die plate, and the guide rod is arranged between the panel and the base plate. Therefore, the production efficiency and the product quality are improved, and the hose structure of the cooling system is convenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading blank die for metal products. Background Art

[0002] Currently, cold heading is widely used in the manufacturing process of metal products due to its high efficiency and low cost. However, existing cold heading dies have some problems in practical application, such as:

[0003] Since a lot of heat is generated during the cold heading process, if the cooling system is not designed properly, it will cause the mold to overheat, affecting the workpiece quality and mold life;

[0004] After cold heading, if the return process of the upper template is unstable, it may cause mold damage or reduce production efficiency;

[0005] The process of removing the formed workpiece from the mold is not convenient enough and sometimes requires additional manpower intervention, which not only reduces production efficiency but may also cause safety problems.

[0006] Therefore, the utility model proposes a metal product cold heading blank die to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a metal product cold heading blank die, so as to solve the problems in the above background technology that the existing cold heading die lacks a cooling structure and has an unstable structure.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal product cold heading blank mold, comprising a mold body; the mold body comprises a base, a tray arranged on the upper side of the base, a pad embedded in the interior of the tray, a lower template fixed to the upper side of the pad, an upper template relatively arranged above the lower template, a cold heading piece arranged in the middle position of the upper side of the upper template, an annular cooling pipe surrounding the upper circumference of the cold heading piece, a water inlet pipe and a water outlet pipe connected to the annular cooling pipe, a punching rod fixed to the upper end of the cold heading piece, a panel arranged above the upper template, and a guide rod arranged between the panel and the pad.

[0009] Preferably, a support column is fixed to the upper side edge of the base, and the upper end of the support column is fixed to the lower side edge of the tray.

[0010] Preferably, a mold foot is fixed parallel to the middle position of the upper side surface of the base, a top plate and a support plate are arranged between the mold feet, the top plate is connected to the external jacking mechanism, a push rod is fixed at the middle position of the upper side surface of the support plate, and the top of the push rod is passed through the tray, the pad and the middle position of the lower template.

[0011] Preferably, a mold cavity is provided in the middle of the lower mold plate, the mold cavity cooperates with the cold heading piece, and buffer protrusions are provided around the circumference of the mold cavity.

[0012] Preferably, a return pin is provided between the panel and the upper template, and a spring is sleeved on the outside of the return pin.

[0013] Preferably, a guide seat is embedded in the middle of the panel, and the punching rod is passed through the inside of the guide seat.

[0014] Preferably, the water inlet pipe and the water outlet pipe are hose structures, and the water inlet pipe and the water outlet pipe are connected to an external circulating water tank.

[0015] Preferably, the upper end of the guide rod is fixed to the end of the panel, and the lower end of the guide rod is movably arranged in the end of the pad.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Through the annular cooling pipe and circulating coolant system (water inlet pipe and water outlet pipe), the temperature during the cold forging process can be effectively controlled to ensure the cooling effect of the mold and workpiece, thereby improving production efficiency and product quality. The hose structure of the cooling system is easy to disassemble and maintain;

[0018] 2. The combination of the guide rod and the guide seat ensures the precise guidance of the upper template during the up and down movement, ensuring the accuracy of the cold heading process. The combination of the return pin and the spring enables the upper template to return smoothly, ensuring the continuity and efficiency of the cold heading process. The cooperation between the ejector rod and the external lifting mechanism enables the formed workpiece to be ejected smoothly, reducing the need for manual operation and improving the degree of automation. The buffer protrusions arranged around the mold cavity of the lower template can reduce the impact on the mold during cold heading and protect the mold from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of one side of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the other side of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the position of the water inlet pipe in the present utility model;

[0022] Figure 4 This is a front view of the overall structure of the utility model;

[0023] Figure 5 It is a side view of the overall structure of the utility model.

[0024] In the figure: 1. Die body; 11. Base; 12. Support column; 13. Die foot; 14. Top plate; 15. Support plate; 16. Tray; 17. Pad; 18. Lower template; 19. Upper template; 110. Guide rod; 111. Spring; 112. Panel; 113. Return pin; 114. Guide seat; 115. Punch rod; 116. Annular cooling pipe; 117. Water inlet pipe; 118. Cold heading part; 119. Push rod; 120. Water outlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-5 , as shown in the figure: This embodiment is a preferred implementation scheme in the present technical solution, a metal product cold heading blank mold, including a mold body 1; the mold body 1 includes a base 11, a tray 16 arranged on the upper side of the base 11, a pad 17 embedded in the tray 16, a lower template 18 fixed to the upper side of the pad 17, an upper template 19 relatively arranged above the lower template 18, a cold heading piece 118 arranged in the middle position of the upper side of the upper template 19, an annular cooling pipe 116 surrounding the upper circumference of the cold heading piece 118, a water inlet pipe 117 and a water outlet pipe 120 connected to the annular cooling pipe 116, a punching rod 115 fixed to the upper end of the cold heading piece 118, a panel 112 arranged above the upper template 19, and a guide rod 110 arranged between the panel 112 and the pad 17.

[0028] Specifically, a support column 12 is fixed to the upper side edge of the base 11, and the upper end of the support column 12 is fixed to the lower side edge of the tray 16. A mold foot 13 is fixed in parallel to the middle position of the upper side of the base 11, and a top plate 14 and a support plate 15 are arranged between the mold feet 13. The top plate 14 is connected to the external jacking mechanism, and a push rod 119 is fixed to the middle position of the upper side of the support plate 15. The top of the push rod 119 passes through the middle position of the tray 16, the pad 17 and the lower template 18. A mold cavity is provided in the middle position of the lower template 18, and the mold cavity cooperates with the cold heading part 118. Buffer protrusions are arranged around the periphery of the mold cavity.

[0029] A return pin 113 is provided between the panel 112 and the upper template 19, and a spring 111 is sleeved on the outside of the return pin 113. A guide seat 114 is embedded in the middle position of the panel 112. The punching rod 115 is passed through the inside of the guide seat 114. The upper end of the guide rod 110 is fixed to the end of the panel 112, and the lower end of the guide rod 110 is movably provided in the end of the pad 17.

[0030] The water inlet pipe 117 and the water outlet pipe 120 are hose structures, and the water inlet pipe 117 and the water outlet pipe 120 are connected to an external circulating water tank.

[0031] This metal product cold heading blank die effectively controls the temperature during the cold heading process, improving production efficiency and product quality. Its technical solution further embodies the following:

[0032] In the mold body 1, the base 11 serves as the basic support of the mold body 1 and is located at the bottom of the entire mold body 1. The support column 12 and the mold foot 13 are used to increase the overall stability of the mold body 1. The top plate 14 and the support plate 15 are installed between the mold foot 13. The top plate 14 can be connected to an external lifting mechanism to eject the workpiece after molding, and cooperate with the support plate 15 and the ejector rod 119 to eject the workpiece after molding. The tray 16 is used to carry the main working parts of the mold body 1. The pad 17 is embedded in the tray 16 and serves as a support platform for the lower template 18. The lower template 18 is fixed to the upper side of the pad 17. A mold cavity is provided in the middle position, and the mold cavity cooperates with the cold heading part 118. The upper template 19 is located above the lower template 18 and cooperates with the lower template 18 to complete the cold heading process. The annular cooling pipe 116 surrounds the upper circumference of the cold heading part 118 for cooling. The water inlet pipe 117 and the water outlet pipe 120 are respectively connected to the annular cooling pipe 116, and are connected to the external circulating water tank through a hose to ensure the circulation of the coolant.

[0033] The punching rod 115 is fixedly connected to the upper end of the cold heading part 118 for transmitting pressure. The guide seat 114 is embedded in the middle position of the panel 112 to ensure the linear movement of the punching rod 115. The panel 112 is located above the upper template 19 and is provided with a guide seat 114 and a guide rod 110. The guide rod 110 connects the panel 112 and the pad 17 to ensure the vertical movement of the upper template 19.

[0034] The return pin 113 is arranged between the panel 112 and the upper template 19, and is covered with a spring 111 on the outside for returning.

[0035] The steps for using the metal product cold heading blank mold are as follows:

[0036] 1. Preparation stage: placing the material in the mold cavity of the lower mold plate 18;

[0037] Second, cold heading stage: the punch rod 115 moves downward, applying pressure to the material through the cold heading piece 118, so that it forms the desired shape in the die cavity;

[0038] 3. Cooling stage: The coolant in the annular cooling pipe 116 circulates to remove the heat generated during the cold heading process, ensuring that the mold and the product are cooled;

[0039] 4. Return stage: After the cold heading is completed, the punch rod 115 rises and returns to its original position through the action of the return pin 113 and the spring 111;

[0040] 5. Ejection stage: The top plate 14 is driven upward by the external jacking mechanism, driving the ejector rod 119 to eject the formed workpiece.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the scope of protection determined by the claims submitted for the utility model.

Claims

1. A metal product cold heading blank die, comprising a die body (1); characterized in that: The mold body (1) includes a base (11), a tray (16) arranged on the upper side of the base (11), a pad (17) embedded in the tray (16), a lower template (18) fixed to the upper side of the pad (17), an upper template (19) relatively arranged above the lower template (18), a cold heading piece (118) arranged in the middle position of the upper side of the upper template (19), an annular cooling pipe (116) surrounding the upper circumference of the cold heading piece (118), a water inlet pipe (117) and a water outlet pipe (120) connected to the annular cooling pipe (116), a punching rod (115) fixed to the upper end of the cold heading piece (118), a panel (112) arranged above the upper template (19), and a guide rod (110) arranged between the panel (112) and the pad (17).

2. The metal product cold heading blank die according to claim 1, characterized in that: A support column (12) is fixed to the upper side edge of the base (11), and the upper end of the support column (12) is fixed to the lower side edge of the tray (16).

3. The metal product cold heading blank die according to claim 1, characterized in that: A mold foot (13) is fixed in parallel to the middle position of the upper side of the base (11), a top plate (14) and a support plate (15) are arranged between the mold feet (13), the top plate (14) is connected to an external jacking mechanism, a top rod (119) is fixed in the middle position of the upper side of the support plate (15), and the top of the top rod (119) is passed through the middle position of the tray (16), the pad (17) and the lower mold plate (18).

4. The metal product cold heading blank die according to claim 1, characterized in that: A mold cavity is provided in the middle of the lower mold plate (18), the mold cavity cooperates with the cold heading piece (118), and a buffer protrusion is provided around the periphery of the mold cavity.

5. The metal product cold heading blank die according to claim 1, characterized in that: A return pin (113) is provided between the panel (112) and the upper template (19), and a spring (111) is sleeved on the outside of the return pin (113).

6. The metal product cold heading blank die according to claim 1, characterized in that: A guide seat (114) is embedded in the middle of the panel (112), and the punching rod (115) is inserted into the guide seat (114).

7. The metal product cold heading blank die according to claim 1, characterized in that: The water inlet pipe (117) and the water outlet pipe (120) are hose structures, and the water inlet pipe (117) and the water outlet pipe (120) are connected to an external circulating water tank.

8. The metal product cold heading blank die according to claim 1, characterized in that: The upper end of the guide rod (110) is fixed to the end of the panel (112), and the lower end of the guide rod (110) is movably arranged in the end of the pad (17).

Images