Cold heading die with pre-positioning structure

Abstract

The utility model discloses a cold heading die with a pre-positioning structure, which relates to the technical field of cold heading dies and comprises a support frame, an upper die holder is slidably mounted on the inner side of the support frame, a plurality of pre-positioning components are mounted at the top of the upper die holder in a penetrating manner, and each pre-positioning component comprises a mounting rod, a pre-positioning pressing plate, a connecting disc and a connecting spring. The mounting rod is mounted at the top of the upper die base in a penetrating mode, the connecting disc is mounted at the top end of the connecting disc, the connecting spring is mounted at the top end of the connecting disc and located on the outer side of the mounting rod, and the pre-positioning pressing plate is mounted at the bottom end of the mounting rod. The pre-positioning pressing plate in the pre-positioning assembly firstly makes contact with formed materials, the connecting spring is stretched along with the downward movement of the upper die base, so that the pre-positioning pressing plate applies pressure to the formed materials downwards, the formed materials are pre-positioned, and the stability of the formed materials is higher during cold pressing machining.

Description

Technical Field

[0001] This utility model relates to the field of cold heading mold technology, specifically a cold heading mold with a pre-positioning structure. Background Technology

[0002] Cold heading dies are specialized tools used in metal forming processes. They are mainly used to upset, extrude, or stretch metal bars at room temperature to form parts of specific shapes. Cold heading dies apply pressure to the metal blank through a stamping press or cold heading machine, and achieve plastic deformation by utilizing the friction and deformation forces between the dies, without the need for heating.

[0003] Patent document CN222660009U discloses a multifunctional cold heading mold. It states that "this utility model, by setting a positioning device, effectively limits the stamping block, thereby restricting the stamping block and reducing the need to replace the stamping block when cold heading different materials. However, the stamping blocks in the upper mold are generally installed with bolts, which require tools. The use of tools is too cumbersome, resulting in low work efficiency for operators. This improves the practicality of the equipment."

[0004] However, the aforementioned multifunctional cold heading mold in the published literature mainly addresses the problem that existing cold heading molds are cumbersome to operate, resulting in low work efficiency. However, this cold heading mold lacks positioning components, which means that the stability of the material cannot be guaranteed when the cold heading mold is used to cold press the material, making the material prone to displacement.

[0005] In view of this, it is necessary to develop a cold heading die with a pre-positioning structure to ensure the stability of the material being formed during cold pressing. Utility Model Content

[0006] The purpose of this utility model is to provide a cold heading die with a pre-positioning structure to solve the technical problem mentioned in the background art that the cold heading die lacks positioning components during use, which leads to the inability to guarantee the stability of the material during cold pressing and forming, making the material prone to displacement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cold heading die with a pre-positioning structure, comprising: a support frame, an upper die base slidably mounted on the inner side of the support frame, and multiple sets of pre-positioning components through-mounted on the top of the upper die base, each pre-positioning component including a mounting rod, a pre-positioning pressure plate, a connecting plate, and a connecting spring, the mounting rod through-mounted on the top of the upper die base, a connecting plate mounted on the top of the connecting plate, the connecting spring mounted on the top of the connecting plate and located outside the mounting rod, and the pre-positioning pressure plate mounted on the bottom end of the mounting rod.

[0008] Preferably, the inner walls of both sides of the support frame are symmetrically provided with sliding grooves, the upper mold base is symmetrically installed with sliders that are slidably connected to the sliding grooves on both sides, the bottom center of the upper mold base is installed with a cold pressing module, and a controller is installed on one side of the support frame.

[0009] Preferably, a pneumatic cylinder is installed at the top of the support frame, the output end of the pneumatic cylinder penetrates through the top inner wall of the support frame, a connecting rod is installed at the output end of the pneumatic cylinder, and one end of the connecting rod is connected to the top of the upper mold base.

[0010] Preferably, a base is installed at the bottom of the support frame, and a lower mold base is installed at the top of the base.

[0011] Preferably, the top of the lower mold base has a mold cavity, and the mold cavity corresponds vertically to the cold pressing module.

[0012] Preferably, an installation groove is provided on the bottom inner wall of the mold cavity, an ejector spring is installed on the bottom inner wall of the installation groove, and an ejector ring is installed inside the installation groove through the ejector spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the prepositioning pressure plate is installed by a mounting rod. The top of the mounting rod is connected to the connecting spring by a connecting plate. When the molding material is placed on the mold for cold pressing, the prepositioning pressure plate in the prepositioning assembly first contacts the molding material. As the upper mold base continues to move downward, the connecting spring is stretched, thereby causing the prepositioning pressure plate to apply downward pressure to the molding material, thereby prepositioning the molding material and making the molding material more stable during cold pressing.

[0015] 2. In this utility model, when the molding material is placed on the top of the mold cavity for cold pressing, the ejector ring installed by the ejector spring is pressed downward by the molding material, causing the ejector spring to be compressed. The top of the ejector ring is pressed into the interior of the mounting groove. After the cold pressing is completed, the cold pressing module moves upward and no longer applies pressure to the molding material, thereby causing the ejector spring to return and push the ejector ring upward, so that the ejector ring ejects the molded material, making the cold heading mold more convenient for material discharge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the prepositioning component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cold pressing module structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the ejector ring structure of this utility model.

[0020] In the diagram: 1. Base; 2. Support frame; 3. Controller; 4. Slide groove; 5. Lower mold base; 6. Mold cavity; 7. Mounting slot; 8. Ejection spring; 9. Ejection ring; 10. Pneumatic cylinder; 11. Upper mold base; 12. Slider; 13. Cold pressing module; 14. Mounting rod; 15. Pre-positioning pressure plate; 16. Connecting plate; 17. Connecting spring; 18. Connecting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 , Figure 2 and Figure 3 A cold heading die with a pre-positioning structure;

[0025] Includes: support frame 2 and pre-press positioning assembly. The upper mold base 11 is slidably installed on the inner side of the support frame 2. Multiple sets of pre-positioning assemblies are installed through the top of the upper mold base 11. The pre-positioning assembly includes mounting rod 14, pre-positioning pressure plate 15, connecting plate 16 and connecting spring 17. Mounting rod 14 is installed through the top of the upper mold base 11. Connecting plate 16 is installed at the top of the connecting plate 16. Connecting spring 17 is installed at the top of the connecting plate 16 and is located outside the mounting rod 14. Pre-positioning pressure plate 15 is installed at the bottom of the mounting rod 14.

[0026] The support frame 2 provides an installation position for the pre-press positioning assembly, which is used to position the molding material. Since the pre-positioning pressure plate 15 is installed through the mounting rod 14, and the top of the mounting rod 14 is connected to the connecting spring 17 via the connecting plate 16, when the molding material is placed on the mold for cold pressing, the pre-positioning pressure plate 15 in the pre-positioning assembly first contacts the molding material. As the upper mold base 11 continues to move downward, the connecting spring 17 is stretched, thereby causing the pre-positioning pressure plate 15 to apply downward pressure to the molding material, thereby pre-positioning the molding material and making the molding material more stable during cold pressing. After positioning, the cold pressing module 13 installed at the bottom of the upper mold base 11 moves downward to perform cold pressing on the molding material.

[0027] Please see Figure 1 and Figure 3 A cold heading die with a pre-positioning structure;

[0028] The support frame 2 includes a cold pressing module 13 and a pneumatic cylinder 10. The inner walls of both sides of the support frame 2 are symmetrically provided with sliding grooves 4. The upper mold base 11 is symmetrically installed with sliders 12 that are slidably connected to the sliding grooves 4 on both sides. The cold pressing module 13 is installed in the middle bottom of the upper mold base 11. The controller 3 is installed on one side of the support frame 2. The pneumatic cylinder 10 is installed at the top of the support frame 2. The output end of the pneumatic cylinder 10 passes through the top inner wall of the support frame 2. The output end of the pneumatic cylinder 10 is provided with a connecting rod 18, and one end of the connecting rod 18 is connected to the top of the upper mold base 11.

[0029] The pneumatic cylinder 10 is connected to the controller 3, which controls the operation of the pneumatic cylinder 10. The pneumatic cylinder 10 converts pneumatic energy into kinetic energy to drive the upper mold base 11 at the output end to move downward. Since the upper mold base 11 is connected to the slide groove 4 through the slider 12 and is installed on the inner side of the support frame 2, it can move downward under the drive of the pneumatic cylinder 10. The connecting rod 18 is used to connect the upper mold base 11 to the output end of the pneumatic cylinder 10. The cold pressing module 13 applies pressure to the molding material at the top of the mold cavity 6 by moving downward, thereby molding the material.

[0030] Please see Figure 1 and Figure 4 A cold heading die with a pre-positioning structure;

[0031] Including the ejector ring 9, the support frame 2 has a base 1 installed at the bottom, the base 1 has a lower mold base 5 installed at the top, the lower mold base 5 has a mold cavity 6 at the top, and the mold cavity 6 corresponds vertically to the cold pressing module 13. The bottom inner wall of the mold cavity 6 has an installation groove 7, the bottom inner wall of the installation groove 7 has an ejector spring 8 installed, and the inside of the installation groove 7 is equipped with an ejector ring 9 through the ejector spring 8.

[0032] When the material to be formed is placed on top of the mold cavity 6 for cold pressing, the ejector ring 9, which is installed by the ejector spring 8, is pressed downward by the material to compress the ejector spring 8. The top of the ejector ring 9 is pressed into the interior of the mounting groove 7. After the cold pressing is completed, the cold pressing module 13 moves upward and no longer applies pressure to the material to be formed. This causes the ejector spring 8 to return to its original position and push the ejector ring 9 upward, thereby ejecting the formed material from the ejector ring 9, making the cold heading mold easier to discharge.

[0033] The working principle is as follows: First, the cold heading mold is placed in the desired position via the base 1. The material to be cold-pressed is placed on the top of the mold cavity 6. The operator opens and runs the pneumatic cylinder 10 via the controller 3. The pneumatic cylinder 10 drives the cold pressing module 13 to move downward via the upper mold base 11, applying pressure to the material to be formed, thereby pressing it into the mold cavity 6 to form the material. During cold pressing, the pre-positioning component will first contact the forming and apply pressure, thereby making the material more stable during cold pressing.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cold heading die with a pre-positioning structure, characterized by, The utility model relates to a cold pressing machine, including: support frame (2), the inner side of support frame (2) is slidably installed with upper die holder (11), the top of upper die holder (11) is installed with a plurality of groups of prepositioning assembly penetratingly, prepositioning assembly includes installation rod (14), prepositioning pressing plate (15), connecting disc (16) and connecting spring (17), installation rod (14) is installed penetratingly in the top of upper die holder (11), the top of connecting disc (16) is installed with connecting disc (16), connecting spring (17) is installed in the top of connecting disc (16), and connecting spring (17) is located the outside of installation rod (14), and prepositioning pressing plate (15) is installed in the bottom end of installation rod (14).

2. A cold heading die with a pre-positioning structure according to claim 1, characterized in that: The inner wall of both sides of support frame (2) is symmetrically provided with a sliding groove (4), and the both sides of upper die holder (11) are symmetrically provided with a sliding block (12) connected with the sliding groove (4), and the middle bottom of upper die holder (11) is provided with a cold pressing module (13), and one side of support frame (2) is provided with a controller (3).

3. A cold heading die with a pre-positioning structure according to claim 1, characterized in that: The top of support frame (2) is provided with a pneumatic cylinder (10), the output end of pneumatic cylinder (10) penetrates the top inner wall of support frame (2), the output end of pneumatic cylinder (10) is provided with a connecting rod (18), and one end of connecting rod (18) is connected with the top of upper die holder (11).

4. A cold heading die with a pre-positioning structure according to claim 1, characterized in that: The bottom of support frame (2) is provided with a base (1), and the top of base (1) is provided with a lower die holder (5).

5. A cold heading die with a pre-positioning structure according to claim 4, characterized in that: The top of lower die holder (5) is provided with a die cavity (6), and the die cavity (6) corresponds to the cold pressing module (13) up and down.

6. A cold heading die with a pre-positioning structure according to claim 5, characterized in that: The bottom inner wall of die cavity (6) is provided with a mounting groove (7), the bottom inner wall of mounting groove (7) is provided with an ejection spring (8), and the inside of mounting groove (7) is provided with an ejection ring (9) through the ejection spring (8). The utility model relates to a cold pressing machine, including: support frame (2), the inner side of support frame (2) is slidably installed with upper die holder (11), the top of upper die holder (11) is installed with a plurality of groups of prepositioning assembly penetratingly, prepositioning assembly includes installation rod (14), prepositioning pressing plate (15), connecting disc (16) and connecting spring (17), installation rod (14) is installed penetratingly in the top of upper die holder (11), the top of connecting disc (16) is installed with connecting disc (16), connecting spring (17) is installed in the top of connecting disc (16), and connecting spring (17) is located the outside of installation rod (14), and prepositioning pressing plate (15) is installed in the bottom end of installation rod (14).

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