Cold heading die for special-shaped parts

Abstract

The utility model discloses a cold heading die for special-shaped parts, and relates to the technical field of cold heading dies. The cold heading die for the special-shaped part comprises a mounting plate, a jacking mechanism and a discharging mechanism, an outer die is fixedly mounted at the top of the mounting plate, an inner die is placed in the outer die, a forming groove is formed in the top of the inner die, the discharging mechanism is arranged on the outer die, and the discharging mechanism comprises a groove, an abutting plate, a connecting plate and an ejector rod. A groove is formed in the bottom of the outer mold, an abutting plate is fixedly installed between the inner walls of the two sides of the groove, a connecting plate is placed at the top of the abutting plate, an ejector rod is fixedly installed at the top of the connecting plate, and one end of the ejector rod penetrates through the outer mold and the inner mold, extends into the forming groove and is flush with the bottom of the inner side of the forming groove. According to the cold heading die for the special-shaped part, through the discharging mechanism, after the part is subjected to cold heading forming in the forming groove, the part can be ejected out of the forming groove, auxiliary discharging is achieved, and the practicability of the die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading die for special-shaped parts. Background Art

[0002] Chinese patent document CN212634177U discloses a cold heading die, which belongs to the technical field of building cold heading dies. The key points of its technical solution are that it includes a fixed base, a cold heading die shell is fixedly connected to the middle position of the upper end of the fixed base, bolt holes are provided at the four corners of the upper end of the fixed base, an inner core groove is provided at the middle position of the inner side of the cold heading die shell, an inner core is sleeved in the inner core groove, an oil filling pipe is fixedly connected to one side of the upper end of the cold heading die shell, a pressure plate groove is provided at the middle position of the upper right side of the fixed base, a buckle is fixedly connected to the middle position of the bottom of the pressure plate groove, a connecting shaft is movably connected in the middle of the buckle, and a pressure plate is provided to press one end of the pressure plate so that the other end thereof rises, thereby pushing the inner core to rise, so that it is convenient to replace the inner core in the cold heading die, thereby saving more time and energy, and facilitating the processing of different cold headings.

[0003] However, when the above-mentioned mold is used, after the processed part is cold-forged in the groove on the inner core, it fits tightly with the groove and is difficult to remove. Therefore, we propose a cold-forging mold for special-shaped parts. Utility Model Content

[0004] The utility model aims to provide a cold heading die for special-shaped parts, which can solve the problem that the parts formed by some existing dies are difficult to take out.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a cold heading die for special-shaped parts, comprising:

[0006] The mounting plate has an outer mold fixedly mounted on the top thereof, an inner mold is placed inside the outer mold, and a molding groove is opened on the top of the inner mold;

[0007] A lifting mechanism is provided on the outer mold and is used to assist in replacing the inner mold;

[0008] A material unloading mechanism is arranged on the outer mold, and the material unloading mechanism includes a groove, a back plate, a connecting plate and a ejecting rod. A groove is opened at the bottom of the outer mold, and a back plate is fixedly installed between the inner walls on both sides of the groove. A connecting plate is placed on the top of the back plate, and a ejecting rod is fixedly installed on the top of the connecting plate. One end of the ejecting rod passes through the outer mold and the inner mold, extends into the molding groove and is flush with the inner bottom of the molding groove.

[0009] Preferably, the unloading mechanism also includes a first spring and a handle rod. The first spring is sleeved in the groove on the ejecting rod. One end of the first spring is fixedly connected to the connecting plate, and the other end of the first spring is fixedly connected to the inner top of the groove. Two sets of handle rods are fixedly installed on the outer surface of the connecting plate.

[0010] Preferably, the lifting mechanism includes a strip groove, a U-shaped rotating plate, a rotating handle, a lifting rod, a clamping rod and a second spring. A strip groove is opened on the outer surface of the outer mold, a U-shaped rotating plate is rotatably installed between the front and rear inner walls of the strip groove, a rotating handle is fixedly installed on the U-shaped rotating plate, a lifting rod is movably penetrated between the interior of the outer mold and the interior of the strip groove, two groups of clamping rods are fixedly installed on the outer surface of the lifting rod, the U-shaped rotating plate is clamped on the lifting rod and contacts the two groups of clamping rods, and a second spring is sleeved on the lifting rod.

[0011] Preferably, two groups of positioning grooves are provided at the inner bottom of the outer mold, and two groups of positioning blocks are fixedly installed at the bottom of the inner mold. Both groups of positioning blocks are snapped into corresponding positioning grooves to facilitate positioning of the inner mold.

[0012] Preferably, at least two groups of mounting holes are formed through the mounting plate.

[0013] Preferably, the outer surface of the inner mold is provided with at least two groups of anti-slip grooves.

[0014] Preferably, the outer surface of the outer mold is provided with two sets of handle grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The cold heading die for the special-shaped parts can eject the parts from the forming groove through the unloading mechanism after the parts are formed by cold heading in the forming groove, thereby assisting unloading. This solves the problem that in some existing molds, after the processed parts are formed by cold heading in the groove on the inner core, they are tightly fitted in the groove and difficult to be taken out, thereby improving the practicality of the mold.

[0017] (2) The cold heading die for special-shaped parts can quickly replace the inner die through the lifting mechanism when parts of different shapes and sizes need to be processed. The inner die with a forming groove of corresponding shape and size can be replaced, thereby improving the processing range of the die. At the same time, with the help of the handle groove and the anti-slip groove, the outer die and the inner die can be easily picked up and carried, ensuring the use effect of the die and facilitating the promotion and use of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a front perspective view of the utility model;

[0020] Figure 2 It is a front view of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 It is a bottom perspective view of the inner core of the utility model.

[0023] Attached figures: 1. Mounting plate; 2. Outer mold; 3. Inner mold; 4. Molding groove; 5. Unloading mechanism; 51. Groove; 52. Abutment plate; 53. Connecting plate; 54. Ejection rod; 55. First spring; 56. Handle bar; 6. Lifting mechanism; 61. Strip groove; 62. U-shaped turning plate; 63. Turning handle; 64. Lifting rod; 65. Clamping rod; 66. Second spring; 7. Positioning groove; 8. Positioning block; 9. Mounting hole; 10. Anti-slip groove; 11. Handle groove. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a cold heading die for special-shaped parts, including a mounting plate 1, a lifting mechanism 6 and a blanking mechanism 5, an outer die 2 is fixedly mounted on the top of the mounting plate 1, an inner die 3 is placed inside the outer die 2, a forming groove 4 is provided on the top of the inner die 3, a lifting mechanism 6 is arranged on the outer die 2, and the lifting mechanism 6 is used to assist in replacing the inner die 3, two groups of positioning grooves 7 are provided on the inner bottom of the outer die 2, two groups of positioning blocks 8 are fixedly mounted on the bottom of the inner die 3, and the two groups of positioning blocks 8 are both clamped in the corresponding positioning grooves 7, at least two groups of mounting holes 9 are provided through the mounting plate 1, at least two groups of anti-slip grooves 10 are provided on the outer surface of the inner die 3, and two groups of handle grooves 11 are provided on the outer surface of the outer die 2;

[0026] The unloading mechanism 5 is arranged on the outer mold 2, and the unloading mechanism 5 includes a groove 51, a stop plate 52, a connecting plate 53 and a ejecting rod 54. The bottom of the outer mold 2 is opened with a groove 51, and the stop plate 52 is fixedly installed between the inner walls on both sides of the groove 51. A connecting plate 53 is placed on the top of the stop plate 52, and a ejecting rod 54 is fixedly installed on the top of the connecting plate 53. One end of the ejecting rod 54 passes through the outer mold 2 and the inner mold 3 and extends into the molding groove 4 and is flush with the inner bottom of the molding groove 4.

[0027] The unloading mechanism 5 also includes a first spring 55 and a handle 56. The first spring 55 is sleeved on the ejector rod 54 in the groove 51. One end of the first spring 55 is fixedly connected to the connecting plate 53, and the other end of the first spring 55 is fixedly connected to the inner top of the groove 51. Two groups of handles 56 are fixedly installed on the outer surface of the connecting plate 53. Through the unloading mechanism 5, after the part is cold-forged in the forming groove 4, it can be ejected from the forming groove 4 to assist in unloading, which solves the problem that when some existing molds are in use, the processed parts are tightly fitted with the groove after cold-forging in the groove on the inner core, making it difficult to take them out, thereby improving the practicability of the mold.

[0028] The lifting mechanism 6 includes a strip groove 61, a U-shaped rotating plate 62, a rotating handle 63, a lifting rod 64, a clamping rod 65 and a second spring 66. The outer surface of the outer mold 2 is provided with a strip groove 61, a U-shaped rotating plate 62 is rotatably installed between the front and rear inner walls of the strip groove 61, and a rotating handle 63 is fixedly installed on the U-shaped rotating plate 62. A lifting rod 64 is movably penetrated between the inside of the outer mold 2 and the inside of the strip groove 61, and two sets of clamping rods 65 are fixedly installed on the outer surface of the lifting rod 64. The U-shaped rotating plate 62 is clamped on the lifting rod 6 4 and in conflict with the two groups of clamping rods 65, a second spring 66 is sleeved on the lifting rod 64, and through the lifting mechanism 6, when it is necessary to process parts of different shapes and sizes, the inner mold 3 can be quickly replaced, and the inner mold 3 with the molding groove 4 of the corresponding shape and size can be replaced, thereby improving the processing range of the mold. At the same time, under the action of the handle groove 11 and the anti-slip groove 10, the outer mold 2 and the inner mold 3 can be conveniently picked up and carried, thereby ensuring the use effect of the mold and being conducive to the promotion and use of the mold.

[0029] Working principle: The mold is installed on the cold heading machine through the mounting hole 9 on the mounting plate 1. After the parts are cold-forged in the forming groove 4, the two sets of handles 56 are pulled upward to drive the connecting plate 53 to be lifted up. The connecting plate 53 compresses the first spring 55, drives the ejecting rod 54 to move upward, and the parts in the forming groove 4 are ejected to realize unloading. After loosening the two sets of handles 56, under the rebound action of the first spring 55, the connecting plate 53 drives the ejecting rod 54 to reset. When parts of different shapes and sizes need to be processed, the turning handle 63 is pressed to drive the U-shaped rotating plate 62 to rotate. The U-shaped rotating plate 62 drives the lifting rod 64 to move upward by picking up the two sets of clamping rods 65. The two sets of clamping rods 65 also compress the second spring 66, thereby ejecting the inner mold 3, and then the inner mold 3 can be removed and replaced.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A cold heading die for special-shaped parts, characterized in that: include: An installation plate (1) is fixedly mounted with an outer mold (2) on the top thereof, an inner mold (3) is placed inside the outer mold (2), and a molding groove (4) is provided on the top of the inner mold (3); A lifting mechanism (6) is arranged on the outer mold (2), and the lifting mechanism (6) is used to assist in replacing the inner mold (3); A material discharge mechanism (5) is arranged on the outer mold (2), and comprises a groove (51), a stop plate (52), a connecting plate (53) and a material discharge rod (54). The outer mold (2) has a groove (51) at the bottom, a stop plate (52) is fixedly installed between the inner walls of both sides of the groove (51), a connecting plate (53) is placed on the top of the stop plate (52), and a material discharge rod (54) is fixedly installed on the top of the connecting plate (53), and one end of the material discharge rod (54) passes through the outer mold (2) and the inner mold (3) and extends into the molding groove (4) and is flush with the inner bottom of the molding groove (4).

2. The cold heading die for special-shaped parts according to claim 1, characterized in that: The unloading mechanism (5) further comprises a first spring (55) and a handle bar (56); the first spring (55) is sleeved in the groove (51) on the ejecting rod (54); one end of the first spring (55) is fixedly connected to the connecting plate (53); the other end of the first spring (55) is fixedly connected to the inner top of the groove (51); and two groups of handle bars (56) are fixedly mounted on the outer surface of the connecting plate (53).

3. The cold heading die for special-shaped parts according to claim 2, characterized in that: The lifting mechanism (6) comprises a strip groove (61), a U-shaped rotating plate (62), a rotating handle (63), a lifting rod (64), a clamping rod (65) and a second spring (66). The outer surface of the outer mold (2) is provided with a strip groove (61). A U-shaped rotating plate (62) is rotatably installed between the front and rear inner walls of the strip groove (61). The rotating handle (63) is fixedly installed on the U-shaped rotating plate (62). A lifting rod (64) is movably passed through the interior of the outer mold (2) and the interior of the strip groove (61). Two groups of clamping rods (65) are fixedly installed on the outer surface of the lifting rod (64). The U-shaped rotating plate (62) is clamped on the lifting rod (64) and contacts the two groups of clamping rods (65). The second spring (66) is sleeved on the lifting rod (64).

4. The cold heading die for special-shaped parts according to claim 3, characterized in that: The inner bottom of the outer mold (2) is provided with two groups of positioning grooves (7), and the bottom of the inner mold (3) is fixedly provided with two groups of positioning blocks (8), and the two groups of positioning blocks (8) are both clamped in the corresponding positioning grooves (7).

5. The cold heading die for special-shaped parts according to claim 4, characterized in that: At least two groups of mounting holes (9) are formed through the mounting plate (1).

6. The cold heading die for special-shaped parts according to claim 5, characterized in that: The outer surface of the inner mold (3) is provided with at least two groups of anti-slip grooves (10).

7. The cold heading die for special-shaped parts according to claim 6, characterized in that: The outer surface of the outer mold (2) is provided with two groups of handle grooves (11).

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