Double-station cold extrusion die

Abstract

The utility model discloses a double-station cold extrusion die which comprises a mounting plate, a cold extrusion type die is arranged above the mounting plate, a sliding plate is arranged below the cold extrusion type die, two die cavities are formed in the upper surface of the cold extrusion type die, and sliding holes are formed in the inner bottom walls of the two die cavities. And sliding plates are arranged in the two die cavities, the bottom ends of the two sliding plates penetrate through the sliding holes and extend to the position below the cold extrusion type die, the bottom ends of the two sliding plates are fixedly connected with the upper surface of a sliding plate, the upper surface of the sliding plate is fixedly connected with a tension spring, and a fixing groove is formed in the bottom face of the cold extrusion type die. According to the double-station cold extrusion die, workpieces in the two die cavities can be jacked upwards through ascending of the two sliding plates, the two workpieces can be rapidly separated from the interiors of the two die cavities for discharging, the discharging speed of the two workpieces after cold extrusion is improved, and the equipment cost during cold extrusion of the workpieces is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cold extrusion dies, in particular to a double-station cold extrusion die. Background Art

[0002] Cold extrusion is to place the metal blank in the cold extrusion die cavity, and at room temperature, apply pressure to the blank through the punch fixed on the press to make the metal blank plastically deformed to obtain the processing mold of the part.

[0003] At present, a Chinese patent with the announcement number CN213052583U discloses a double-station cold extrusion die, including a base plate, a die base, a die sleeve and a lever-type material withdrawal mechanism. The die base is fixed to the base plate, and the two die sleeves are symmetrically inlaid and fixed on the top surface of the die base, and a mold cavity is arranged in the die sleeve; the lever-type material withdrawal mechanism is installed in the cavity formed between the bottom of the die base and the base plate. However, in the above patent, when the workpiece is extruded and unloaded, a lever-type material withdrawal mechanism is used for unloading. When the lever-type material withdrawal mechanism unloads, two presses need to be equipped to perform pressure movements respectively, which will increase the equipment cost when the workpiece is cold extruded. For this reason, we propose a double-station cold extrusion die to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a double-station cold extrusion die to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-station cold extrusion die comprises a mounting plate, a cold extrusion die is arranged above the mounting plate, a sliding plate is arranged below the cold extrusion die, two die cavities are arranged on the upper surface of the cold extrusion die, sliding holes are arranged on the inner bottom walls of the two die cavities, slide plates are arranged inside the two die cavities, the bottom ends of the two slide plates pass through the sliding holes and extend to the bottom of the cold extrusion die, the bottom ends of the two slide plates are fixedly connected to the upper surface of the sliding plate, a tension spring is fixedly connected to the upper surface of the sliding plate, a fixing groove is arranged on the bottom surface of the cold extrusion die, and the top end of the tension spring is fixedly connected to the inner top wall of the fixing groove.

[0007] In a further embodiment, the inner wall of the cold extrusion die is provided with two limit holes, the inner walls of the two limit holes are slidably connected to limit sliders, and the side surfaces of the two limit sliders close to each other are fixedly connected to the outer surface of the sliding plate.

[0008] In a further embodiment, two fixing plates are fixedly connected to the outer surface of the cold extrusion die, through holes are provided on the bottom surfaces of the two fixing plates, and two fixing screws are fixedly connected to the upper surface of the mounting plate.

[0009] In a further embodiment, the top ends of the two fixing screws pass through the through hole and extend to the top of the through hole, the outer surfaces of the two fixing screws are threadedly connected with locking nuts, and the bottom ends of the two locking nuts are in tight contact with the upper surfaces of the two fixing plates respectively.

[0010] In a further embodiment, a through opening is opened on the bottom surface of the mounting plate, a support tube is fixedly connected to the bottom surface of the mounting plate, a damper is fixedly installed on the inner bottom wall of the support tube, and the top end of the damper is fixedly connected to the bottom surface of the sliding plate.

[0011] In a further embodiment, two groups of mounting openings are provided on the upper surface of the mounting plate, and two positioning covers are fixedly mounted on the upper surface of the cold extrusion die.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device can install two slide plates inside the two mold cavities through two sliding holes at the bottom of the two mold cavities, and utilizes the tension of the tension spring and the setting of the sliding plate to drive the sliding plate and the two slide plates to move upward through the tension of the tension spring reset. Then, by utilizing the rise of the two slide plates, the workpieces inside the two mold cavities will be pushed upward respectively, so that the two workpieces can be quickly detached from the inside of the two mold cavities and unloaded. Then, the double-station cold extrusion mold can improve the unloading speed of the two workpieces after cold extrusion and reduce the equipment cost during cold extrusion of the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the front view of the double-station cold extrusion die.

[0015] Figure 2 It is a cross-sectional view of the front view of a double-station cold extrusion die.

[0016] Figure 3 It is a cross-sectional view of the top view of the double-station cold extrusion die.

[0017] Figure 4 It is a double-station cold extrusion die. Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0018] In the figure: 1. mounting plate; 2. cold extrusion die; 3. sliding plate; 4. sliding hole; 5. sliding plate; 6. fixing groove; 7. tension spring; 8. through port; 9. damper; 10. support cylinder; 11. mold cavity; 12. positioning cover; 13. fixing plate; 14. mounting port; 15. through hole; 16. fixing screw; 17. locking nut; 18. limiting hole; 19. limiting slider. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] 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.

[0022] See also Figure 1-4In the utility model, a double-station cold extrusion mold comprises a mounting plate 1, a cold extrusion mold 2 is arranged above the mounting plate 1, a sliding plate 3 is arranged below the cold extrusion mold 2, the upper surface of the cold extrusion mold 2 is provided with two mold cavities 11, the inner bottom walls of the two mold cavities 11 are provided with sliding holes 4, and the interiors of the two mold cavities 11 are provided with slide plates 5, the bottom ends of the two slide plates 5 pass through the sliding holes 4 and extend to the bottom of the cold extrusion mold 2, the bottom ends of the two slide plates 5 are fixedly connected to the upper surface of the sliding plate 3, the upper surface of the sliding plate 3 is fixedly connected with a tension spring 7, the bottom surface of the cold extrusion mold 2 is provided with a fixing groove 6, the top of the tension spring 7 is fixedly connected to the inner top wall of the fixing groove 6, through the setting of the tension spring 7, a pulling force can be provided for the sliding plate 3 and the slide plate 5 during the reset movement, the fixing groove 6 can be used to fix the top of the tension spring 7, and the movement of the slide plate 5 will stably push the extruded workpiece upward.

[0023] In a further embodiment, two limit holes 18 are provided on the inner wall of the cold extrusion die 2, and the inner walls of the two limit holes 18 are slidably connected to the limit sliders 19. The side surfaces of the two limit sliders 19 that are close to each other are fixedly connected to the outer surface of the sliding plate 3. The outer surface of the cold extrusion die 2 is fixedly connected to two fixed plates 13, and the bottom surfaces of the two fixed plates 13 are provided with through holes 15. The upper surface of the mounting plate 1 is fixedly connected to two fixing screws 16. Through the cooperation of the limit holes 18 and the limit sliders 19, the sliding plate 3 can be made more stable when moving up and down. The setting of the fixed plate 13 and the through hole 15 facilitates the connection and fixation between the cold extrusion die 2 and the mounting plate 1.

[0024] In a further embodiment, the top ends of the two fixing screws 16 penetrate the through hole 15 and extend to the top of the through hole 15, the outer surfaces of the two fixing screws 16 are threadedly connected with locking nuts 17, and the bottom ends of the two locking nuts 17 are in close contact with the upper surfaces of the two fixing plates 13, respectively. A through opening 8 is opened on the bottom surface of the mounting plate 1, and a support tube 10 is fixedly connected to the bottom surface of the mounting plate 1. A damper 9 is fixedly installed on the inner bottom wall of the support tube 10, and the top end of the damper 9 is fixedly connected to the bottom surface of the sliding plate 3. Two groups of mounting openings 14 are provided on the upper surface of the plate 1, and two positioning covers 12 are fixedly installed on the upper surface of the cold extrusion die 2. By means of the cooperation of the fixing screw 16 and the locking nut 17, the cold extrusion die 2 can be quickly and firmly installed above the mounting plate 1. By means of the setting of the support tube 10, the damper 9 can be supported for installation. By means of the setting of the damper 9, the pulling speed of the sliding plate 3 when the tension spring 7 is reset can be reduced. The placed workpiece can be positioned by means of the positioning cover 12, so as to facilitate its cold extrusion processing.

[0025] The working principle of the utility model is: when the workpieces are cold extruded, firstly, the two workpieces are taken and placed inside the two mold cavities 11, and then the two punches are driven by a press to cold extrude the workpieces inside the two mold cavities 11, and at the same time, the slide plate 5 and the sliding plate 3 are driven to move downward, and the tension spring 7 in the contracted state is expanded. When the workpieces after cold extrusion are unloaded, the pulling force of the tension spring 7 is reset to drive the sliding plate 3 and the two slide plates 5 to move upward, so that the two slide plates 5 can be pushed upward with the workpieces inside the two mold cavities 11 respectively, so that the workpieces can be separated from the inside of the mold cavity 11, so as to facilitate unloading.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-station cold extrusion die, characterized in that: The invention comprises a mounting plate (1), a cold extrusion die (2) is arranged above the mounting plate (1), a sliding plate (3) is arranged below the cold extrusion die (2), two cavities (11) are arranged on the upper surface of the cold extrusion die (2), sliding holes (4) are arranged on the inner bottom walls of the two cavities (11), sliding plates (5) are arranged inside the two cavities (11), the bottom ends of the two sliding plates (5) pass through the sliding holes (4) and extend to the bottom of the cold extrusion die (2), the bottom ends of the two sliding plates (5) are fixedly connected to the upper surface of the sliding plate (3), the upper surface of the sliding plate (3) is fixedly connected to a tension spring (7), the bottom surface of the cold extrusion die (2) is provided with a fixing groove (6), and the top end of the tension spring (7) is fixedly connected to the inner top wall of the fixing groove (6).

2. A double-station cold extrusion die according to claim 1, characterized in that: The inner wall of the cold extrusion die (2) is provided with two limiting holes (18), the inner walls of the two limiting holes (18) are slidably connected to limiting sliders (19), and the side surfaces of the two limiting sliders (19) that are close to each other are fixedly connected to the outer surface of the sliding plate (3).

3. A double-station cold extrusion die according to claim 1, characterized in that: Two fixing plates (13) are fixedly connected to the outer surface of the cold extrusion die (2), and the bottom surfaces of the two fixing plates (13) are each provided with a through hole (15). The upper surface of the mounting plate (1) is fixedly connected to two fixing screws (16).

4. A double-station cold extrusion die according to claim 3, characterized in that: The top ends of the two fixing screws (16) pass through the through hole (15) and extend to the top of the through hole (15), the outer surfaces of the two fixing screws (16) are threadedly connected with locking nuts (17), and the bottom ends of the two locking nuts (17) are in close contact with the upper surfaces of the two fixing plates (13), respectively.

5. The double-station cold extrusion die according to claim 1, characterized in that: The bottom surface of the mounting plate (1) is provided with a through opening (8), the bottom surface of the mounting plate (1) is fixedly connected to a support tube (10), a damper (9) is fixedly installed on the inner bottom wall of the support tube (10), and the top end of the damper (9) is fixedly connected to the bottom surface of the sliding plate (3).

6. A double-station cold extrusion die according to claim 1, characterized in that: The upper surface of the mounting plate (1) is provided with two groups of mounting openings (14), and the upper surface of the cold extrusion die (2) is fixedly provided with two positioning covers (12).

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