Cold heading machining die for special-shaped fastener

Abstract

The utility model relates to the technical field of special-shaped fastener machining dies, in particular to a special-shaped fastener cold heading machining die which comprises a connecting rod and a positioning rod, the connecting rod is in sliding connection with the upper surface of a mounting block, the positioning rod is fixedly connected to the lower surface of the connecting rod, and the positioning rod is in sliding connection in the mounting block. A positioning groove is formed in the upper surface of the first mold, the positioning rod is connected with the interior of the positioning groove in an inserted mode, limiting blocks are fixedly connected to the two sides of the mounting block, the connecting rod is slidably connected with the interior of the limiting block, a pull rod is fixedly connected to the lower end of the connecting rod, and a mounting ring is fixedly connected to the surface of the pull rod. According to the replacing device disclosed by the utility model, through the mutual cooperation of the connecting rod, the positioning rod, the limiting rod, the limiting block and other parts, the effect of rapidly replacing the mold in the mounting block is realized, a user can conveniently and rapidly replace the mold, and the effect of improving the working efficiency of the user is achieved.

Description

Technical Field

[0001] This utility model relates to the field of irregular fastener processing mold technology, and in particular to an irregular fastener cold heading processing mold. Background Technology

[0002] In modern industrial production, irregularly shaped fasteners, as a key type of connecting component, are widely used in aerospace, automotive manufacturing, electronic equipment, and many other fields. However, the production of irregularly shaped fasteners faces many challenges. Cold heading, as an efficient forming process, plays an important role in the production of irregularly shaped fasteners. However, when producing irregularly shaped fasteners, cold heading requires changing specific processing molds. Therefore, changing the molds is cumbersome and affects work efficiency. Thus, using a special cold heading mold for irregularly shaped fasteners improves the working efficiency of the equipment.

[0003] Existing technologies, such as the patent with publication number CN218835970U, disclose a cold heading die for irregular fasteners. This patent uses a combination module, which consists of several modules. Each combination module has a first inner core, a second inner core, a third inner core, and a fourth inner core connected by threads. Each combination module has a positioning pin connected to its bottom and a positioning component inside. This utility model device solves the problem that existing equipment is difficult to quickly replace irregular fastener dies.

[0004] During the use of the equipment, when replacing the mold, bolts are generally used to install and connect the mold. The installation and removal of bolts require tools, which are too cumbersome and result in low efficiency for users. Utility Model Content

[0005] The purpose of this utility model is to provide a cold heading die for irregular fasteners, which solves the problem that the existing technology generally uses bolts for installation, and the installation and removal of bolts requires tools, which are too cumbersome and result in low work efficiency for users.

[0006] To achieve the above objectives, this utility model provides a cold heading die for irregularly shaped fasteners. The cold heading die for irregularly shaped fasteners includes a mounting base, a mounting block, a first die, a second die, and a third die. The mounting block is fixedly connected to the surface of the mounting base. The first die is inserted and connected inside the mounting block. The second die is inserted and connected inside the mounting block. The third die is inserted and connected inside the mounting block.

[0007] This also includes replacement devices;

[0008] The replacement device includes a connecting rod and a positioning rod. The connecting rod is slidably connected to the upper surface of the mounting block, and the positioning rod is fixedly connected to the lower surface of the connecting rod. The positioning rod is slidably connected inside the mounting block. A positioning groove is formed on the upper surface of the first mold, and the positioning rod is inserted into the positioning groove. Limiting blocks are fixedly connected to both sides of the mounting block, and the connecting rod is slidably connected inside the limiting blocks. A pull rod is fixedly connected to the lower end of the connecting rod, and a mounting ring is fixedly connected to the surface of the pull rod. A limiting rod is fixedly connected to the lower surface of the mounting block, and the limiting rod is slidably connected inside the mounting ring.

[0009] The lower end of the limiting rod is fixedly connected to a fixing block, which is in close contact with the lower surface of the mounting ring. The fixing block can limit the pull rod, reducing the possibility that the pull rod may detach from the limiting rod surface due to external force during use, making it difficult for the pull rod to move smoothly along the connecting rod.

[0010] The limiting rod has a first spring attached to its surface.

[0011] One end of the first spring is fixedly connected to the upper surface of the mounting ring, and the end of the first spring away from the mounting ring is fixedly connected to the lower surface of the mounting block. The mounting ring can limit the movement of the first spring.

[0012] The mounting block has an auxiliary component on its side away from the mounting base. The auxiliary component includes a baffle and a moving rod. The baffle abuts against the surfaces of the mounting block and the first mold. The moving rod is fixedly connected to the upper surface of the baffle. A sliding groove is formed on the side of the mounting block away from the mounting base. A slider is fixedly connected to the end of the moving rod away from the baffle and close to the mounting block. The slider slides inside the sliding groove. A sliding rod is fixedly connected inside the sliding groove. The sliding rod can limit the slider, reducing the possibility that the slider may easily detach from the sliding groove during use, making it difficult for the baffle to block the mold.

[0013] The slider is slidably connected to the surface of the slide rod, and a second spring is sleeved and connected to the surface of the slide rod.

[0014] One end of the second spring is fixedly connected to the lower surface of the slider, and the other end of the second spring away from the slider is fixedly connected to the bottom of the groove.

[0015] This utility model discloses a cold heading die for irregularly shaped fasteners. By incorporating a replacement device, a connecting rod drives a positioning rod to connect into a positioning groove, allowing for rapid disengagement and positioning of the first, second, and third dies. This facilitates quick die replacement by the user. The setting of a limiting rod and a limiting block restricts the movement of the connecting rod, allowing it to connect vertically. This replacement device, through the cooperation of components such as the connecting rod, positioning rod, limiting rod, and limiting block, enables rapid die replacement within the mounting block, improving user efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a side view of the structure of an embodiment of the present invention.

[0019] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model.

[0020] Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified view of the replacement device at point A in the middle.

[0021] Figure 5 This is an embodiment of the present utility model. Figure 3 A magnified view of the auxiliary component at point B.

[0022] 1-Mounting base; 2-Mounting block; 3-First mold; 4-Second mold; 5-Third mold; 6-Replacement device; 61-Connecting rod; 62-Positioning rod; 63-Positioning groove; 64-Limiting block; 65-Pull rod; 66-Mounting ring; 67-Limiting rod; 68-Fixing block; 69-First spring; 7-Auxiliary component; 71-Baffle; 72-Moving rod; 73-Slider; 74-Slide groove; 75-Slide rod; 76-Second spring. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Please see Figures 1-5This utility model provides a technical solution: a cold heading die for irregular fasteners, including a mounting base 1, a mounting block 2, a first die 3, a second die 4 and a third die 5. The mounting block 2 is fixedly connected to the surface of the mounting base 1, the first die 3 is inserted and connected inside the mounting block 2, the second die 4 is inserted and connected inside the mounting block 2, and the third die 5 is inserted and connected inside the mounting block 2.

[0025] The specific settings and functions of the replacement device 6 and auxiliary components 7 will be explained in detail below.

[0026] In this embodiment: the replacement device 6 includes a connecting rod 61 and a positioning rod 62. The connecting rod 61 is slidably connected to the upper surface of the mounting block 2, and the positioning rod 62 is fixedly connected to the lower surface of the connecting rod 61. The positioning rod 62 is slidably connected inside the mounting block 2. The upper surface of the first mold 3 is provided with a positioning groove 63. The positioning rod 62 is inserted into the positioning groove 63. Limiting blocks 64 are fixedly connected to both sides of the mounting block 2. The connecting rod 61 is slidably connected inside the limiting blocks 64. A pull rod 65 is fixedly connected to the lower end of the connecting rod 61. A mounting ring 66 is fixedly connected to the surface of the pull rod 65. A limiting rod 67 is fixedly connected to the lower surface of the mounting block 2. The limiting rod 67 is slidably connected inside the mounting ring 66.

[0027] Specifically, a fixing block 68 is fixedly connected to the lower end of the limiting rod 67, and the fixing block 68 is in contact with the lower surface of the mounting ring 66.

[0028] In this embodiment: by setting the limiting rod 67, the pull rod 65 can be limited, and the first spring 69 can be guided at the same time, which reduces the situation where the first spring 69 is difficult to move vertically during use, making it difficult for the first spring 69 to apply elastic force to the pull rod 65.

[0029] Specifically, a first spring 69 is sleeved and connected to the surface of the limiting rod 67.

[0030] Specifically, one end of the first spring 69 is fixedly connected to the upper surface of the mounting ring 66, and the end of the first spring 69 away from the mounting ring 66 is fixedly connected to the lower surface of the mounting block 2.

[0031] In this embodiment: An auxiliary component 7 is provided on the side of the mounting block 2 away from the mounting base 1. The auxiliary component 7 includes a baffle 71 and a moving rod 72. The baffle 71 abuts against the surfaces of the mounting block 2 and the first mold 3. The moving rod 72 is fixedly connected to the upper surface of the baffle 71. A sliding groove 74 is provided on the side of the mounting block 2 away from the mounting base 1. A slider 73 is fixedly connected to the end of the moving rod 72 away from the baffle 71 and close to the mounting block 2. The slider 73 slides inside the sliding groove 74. A sliding rod 75 is fixedly connected inside the sliding groove 74.

[0032] The baffle 71 is made of high-strength wear-resistant material. Its surface in contact with the mold is designed with anti-slip texture, which can increase the friction with the mold surface. When the baffle 71 abuts against the mold, it can not only limit the mold from the outside, effectively restricting the slight movement of the mold inside the mounting block 2, but also share some of the impact force during the cold heading process, reducing the risk of mold displacement due to uneven force. This secondary limiting structure can significantly improve the stability of mold installation, ensure the accuracy of the stamping process, and reduce the rate of defective products.

[0033] In this embodiment: by setting baffle 71, the mold can be limited a second time, which reduces the risk of the mold moving slightly inside the mounting block 2 during use, causing deviations in the stamping process and resulting in defective products being stamped out.

[0034] Specifically, the slider 73 is slidably connected to the surface of the slide rod 75, and a second spring 76 is sleeved and connected to the surface of the slide rod 75.

[0035] Specifically, one end of the second spring 76 is fixedly connected to the lower surface of the slider 73, and the end of the second spring 76 away from the slider 73 is fixedly connected to the bottom of the groove 74.

[0036] Working Principle: Cold heading is a processing method that uses a mold to apply external force to a metal billet at room temperature, causing it to undergo plastic deformation within a predetermined mold, thereby obtaining parts of the desired shape and size. Compared with other processing techniques, cold heading has significant advantages such as high production efficiency, high material utilization, and high product strength. During operation, the mounting base 1 is installed in the stamping area of ​​the equipment. The stamping head then stamps the mounting block 2 on the surface of the mounting base 1. A clamping and moving mechanism is located near the mold end of the mounting block 2 to clamp and move the material during stamping, allowing it to be transferred to different molds for stamping production. When changing the mold inside the mounting block 2, the user moves the pull rod 65 upwards, causing the connecting rod 61 to move inside the limiting block 64. The pull rod 65 then moves on the surface of the limiting rod 67, compressing the first spring 69 to generate elasticity. Force is applied, and then the connecting rod 61 drives the positioning rod 62 to move and disengage from the mounting block 2 and the positioning groove 63. The mold is then freed from its restraints, allowing for mold replacement. The replacement device 6, in which the connecting rod 61 drives the positioning rod 62 to connect into the positioning groove 63, allows for rapid disengagement and positioning of the first mold 3, the second mold 4, and the third mold 5, facilitating quick mold replacement by the user. The limiting rod 67 and the limiting block 64 limit the movement of the connecting rod 61, allowing it to connect vertically. This replacement device 6, through the cooperation of the connecting rod 61, positioning rod 62, limiting rod 67, and limiting block 64, enables rapid mold replacement within the mounting block 2, improving user efficiency.

[0037] When the equipment is in use, the user moves the baffle 71 downwards, causing the moving rod 72 and the slider 73 to move on the surface of the slider 75 inside the slide groove 74. When the slider 73 moves, it compresses the second spring 76 to generate elastic force, and then the baffle 71 detaches from the mold surface. By setting the auxiliary component 7, the mold and the mounting block 2 are effectively further constrained, which plays a role in stabilizing the mold. This reduces the situation where the mold is difficult to securely install inside the mounting block 2 during use, causing the mold to move and detach from the mounting block 2 during stamping production, making it difficult for the equipment to operate normally. This auxiliary component 7 can provide secondary constraint and stabilization for the mold, improving the stability of the equipment.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A cold heading die for irregularly shaped fasteners, comprising a mounting base, a mounting block, a first die, a second die, and a third die, characterized in that, The mounting block is fixedly connected to the surface of the mounting base. The first mold is inserted and connected inside the mounting block. The second mold is inserted and connected inside the mounting block. The third mold is inserted and connected inside the mounting block. This also includes replacement devices; The replacement device includes a connecting rod and a positioning rod. The connecting rod is slidably connected to the upper surface of the mounting block, and the positioning rod is fixedly connected to the lower surface of the connecting rod. The positioning rod is slidably connected inside the mounting block. A positioning groove is formed on the upper surface of the first mold, and the positioning rod is inserted into the positioning groove. Limiting blocks are fixedly connected to both sides of the mounting block, and the connecting rod is slidably connected inside the limiting blocks. A pull rod is fixedly connected to the lower end of the connecting rod, and a mounting ring is fixedly connected to the surface of the pull rod. A limiting rod is fixedly connected to the lower surface of the mounting block, and the limiting rod is slidably connected inside the mounting ring.

2. The cold heading die for irregularly shaped fasteners as described in claim 1, characterized in that, The lower end of the limiting rod is fixedly connected to a fixing block, and the fixing block is in contact with the lower surface of the mounting ring.

3. The cold heading die for irregularly shaped fasteners as described in claim 2, characterized in that, A first spring is sleeved on the surface of the limiting rod.

4. The cold heading die for irregularly shaped fasteners as described in claim 3, characterized in that, One end of the first spring is fixedly connected to the upper surface of the mounting ring, and the end of the first spring away from the mounting ring is fixedly connected to the lower surface of the mounting block.

5. The cold heading die for irregularly shaped fasteners as described in claim 1, characterized in that, An auxiliary component is provided on the side of the mounting block away from the mounting base. The auxiliary component includes a baffle and a moving rod. The baffle abuts against the surfaces of the mounting block and the first mold. The moving rod is fixedly connected to the upper surface of the baffle. A sliding groove is provided on the side of the mounting block away from the mounting base. A slider is fixedly connected to the end of the moving rod away from the baffle and close to the mounting block. The slider slides inside the sliding groove. A sliding rod is fixedly connected inside the sliding groove.

6. The cold heading die for irregularly shaped fasteners as described in claim 5, characterized in that, The slider is slidably connected to the surface of the slide rod, and a second spring is sleeved and connected to the surface of the slide rod.

7. The cold heading die for irregularly shaped fasteners as described in claim 6, characterized in that, One end of the second spring is fixedly connected to the lower surface of the slider, and the other end of the second spring away from the slider is fixedly connected to the bottom of the groove.

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