A cold heading screw forming die

Abstract

The utility model relates to screw forming technical field provides a cold upsetting forming screw mould, including support platform, the middle part of support platform top is provided with the forming structure, the forming structure includes mould assembly and oiling subassembly, the top of mould assembly is provided with the down pressure subassembly to the support platform, the mould assembly includes mould main part, the middle part of mould main part fixed in support platform top, in the utility model, the oil storage box is delivered to the oil delivery pipe in the lubricating oil of miniature oil pump, subsequently enters the connecting pipe, finally through the oil injection head to mould main part top forming groove sprays lubricating oil, thereby reduces the friction of screw element, and the pressure produced in the screw element forming process will make part lubricating oil overflow, and the overflow lubricating oil enters the collecting groove, subsequently flows out through the drainage groove and enters the collection box and collects, thereby avoids the lubricating oil loss support platform on the support platform pollution, and avoids the waste of lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of screw forming technology, and in particular to a cold heading screw mold. Background Technology

[0002] Cold heading forming screw molds are special molds used in the cold heading process to manufacture screws. Their core function is to directly form the head, shank, and thread root diameter of a screw through high-pressure plastic deformation, without the need for extensive subsequent cutting.

[0003] As disclosed in CN218656659U, this utility model relates to the field of screw forming mold technology, and in particular to a screw cold heading forming mold, including a bottom mold, a support member at the bottom end of the bottom mold, a screw mold embedded in the center of the bottom mold, a pressing member at the top end of the bottom mold, and a stamping rod at the center of the bottom end of the pressing member. A fixing member is connected to the inner side of the top end of the bottom mold, and the fixing member includes a rotating pressure plate installed on the side of the top end of the bottom mold. This utility model uses a pressure plate to cover the surface of the screw mold, and a locking block moves relative to the surface of the opposing threaded shaft, so that the locking block presses against the surface of the pressure plate after translation, ensuring the stability of the pressure plate against the cover on the surface of the screw mold, reducing the replacement time of the screw mold, improving the replacement efficiency, and at the same time, a positioning strip can be embedded in the surface of the screw mold, thereby restricting and positioning the screw mold and ensuring the stability of the screw mold installation.

[0004] In the existing technology, the mold is placed in the bottom mold and fixed by a snap-fit ​​structure. When the mold needs to be changed, the snap-fit ​​structure is opened, another mold is placed, and then it is fixed again. Therefore, the mold can be changed according to different needs. However, during molding, lubricating oil needs to be sprayed into the mold regularly, which is time-consuming and labor-intensive. Moreover, as more screws are molded, the excess lubricating oil adhering to the surface of the part will continue to drip to the outer edge of the mold, causing the lubricating oil to overflow and run off along the edge of the mold. This will result in the waste of lubricating oil and the contamination of the worktable. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, lubricating oil needs to be sprayed into the mold regularly during molding, which is time-consuming and labor-intensive. Furthermore, as more screws are molded, the excess lubricating oil adhering to the surface of the parts will continuously drip to the outer edge of the mold, causing the lubricating oil to overflow and leak along the edge of the mold, thus leading to the waste of lubricating oil and the pollution of the workbench.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cold heading screw mold, comprising a support platform, a forming structure provided at the center of the top of the support platform, the forming structure comprising a mold assembly and an oiling assembly, a pressing assembly provided at the top of the mold assembly on the support platform, the mold assembly comprising a mold body, the mold body being fixed at the center of the top of the support platform, a top plate being slidably connected to the bottom of the interior of the mold body, a sealing ring being fixedly connected to the center of the top plate, and a spring being fixedly connected to the bottom of the top plate, the spring being fixedly connected to the support platform.

[0007] In a preferred embodiment, a collection groove is provided on the outer side of the top plate at the top of the mold body, and a flow guide groove is provided in a ring array on the outer side of the collection groove. A flow guide pipe is fixedly connected to the outer wall of the mold body at the flow guide groove, and a collection box is fixedly connected to the bottom end of the flow guide pipe on the mold body. An oil outlet pipe is fixedly connected in a ring array at the top of the top plate inside the mold body. The oil outlet pipe is inclined and communicates with the collection box. An oil drain pipe is fixedly connected to one side of the collection box.

[0008] In a preferred embodiment, the oiling assembly includes an oil storage box, which is fixed on the side of the support platform near the oil drain pipe. An oil inlet groove is provided at the bottom end of the oil storage box near the oil drain pipe. A micro oil pump is fixedly connected to one side of the top of the oil storage box, and an oil delivery pipe is fixedly connected to the top of the micro oil pump.

[0009] In a preferred embodiment, a fixing plate is fixedly connected to the end of the oil delivery pipe away from the micro oil pump. The fixing plate is fixed to a corner of the top of the mold body near the oil discharge pipe. A connecting pipe is fixedly connected to the top of the fixing plate away from the oil delivery pipe. An oil spray head is fixedly connected to the end of the connecting pipe away from the fixing plate.

[0010] In a preferred embodiment, the pressing assembly includes a bracket, which is fixed on both sides of the top of the support platform. A cylinder is fixedly installed in the middle of the top of the bracket. The output end of the cylinder slides through the bracket, and a stamping block is fixedly connected to the bottom end of the cylinder.

[0011] In a preferred embodiment, the bottom end of the cylinder is fixedly connected to the top end of the stamping block with a limiting plate, and the two ends of the limiting plate are slidably connected with limiting rods, which are fixedly connected to the bracket and the support platform.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, a micro oil pump is started to deliver lubricating oil from the oil storage box to the oil supply pipe, which then enters the connecting pipe. Finally, lubricating oil is sprayed onto the forming groove at the top of the mold body through the oil spray nozzle, thereby reducing the friction of the screw components. When the pressure generated during the forming process of the screw components causes some lubricating oil to overflow, the overflowing lubricating oil enters the collection tank, and then flows out through the drainage channel into the collection box for collection, thereby avoiding the loss of lubricating oil to the support platform and preventing the contamination of the support platform, as well as avoiding the waste of lubricating oil.

[0014] Some of the lubricating oil enters the mold body and is located at the top of the top plate. It then flows into the collection box through the oil outlet pipe, thus avoiding excessive lubricating oil accumulation inside the mold body. After entering the collection box, the lubricating oil flows into the oil storage box through the oil drain pipe and is finally transported and sprayed by a micro oil pump, thereby achieving lubrication recycling. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a cold heading screw mold provided by this utility model;

[0016] Figure 2 A schematic diagram of the back structure of a cold heading screw mold provided by this utility model;

[0017] Figure 3 A cross-sectional structural diagram of a cold heading screw mold provided by this utility model;

[0018] Figure 4 A schematic diagram of the mold assembly structure of a cold heading screw mold provided by this utility model;

[0019] Figure 5 A schematic diagram of the oiling component structure of a cold heading screw mold provided by this utility model.

[0020] Legend:

[0021] 1. Support platform; 21. Bracket; 22. Cylinder; 23. Stamping block; 24. Limiting plate; 25. Limiting rod; 31. Mold body; 311. Collection groove; 312. Drain groove; 313. Guide pipe; 314. Collection box; 315. Top plate; 316. Sealing ring; 317. Spring; 318. Oil outlet pipe; 319. Oil drain pipe; 32. Oil storage box; 321. Oil inlet groove; 322. Miniature oil pump; 323. Oil delivery pipe; 324. Fixing plate; 325. Connecting pipe; 326. Oil spray head. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a cold heading screw mold, including a support platform 1, a forming structure at the center of the top of the support platform 1, the forming structure including a mold assembly and an oiling assembly, a pressing assembly at the top of the mold assembly on the support platform 1, the mold assembly including a mold body 31, the mold body 31 fixed to the center of the top of the support platform 1, a top plate 315 slidably connected to the bottom of the interior of the mold body 31, a sealing ring 316 fixedly connected to the center of the top plate 315, and a spring 317 fixedly connected to the bottom of the top plate 315, the spring 317 being fixedly connected to the support platform 1. Next, a collection groove 311 is provided on the outer side of the top plate 315 at the top of the mold body 31. A flow channel 312 is provided in a ring array on the outer side of the collection groove 311. A guide pipe 313 is fixedly connected to the outer wall of the mold body 31 at the flow channel 312. A collection box 314 is fixedly connected to the bottom end of the guide pipe 313 on the mold body 31. An oil outlet pipe 318 is fixedly connected in a ring array at the top of the top plate 315 inside the mold body 31. The oil outlet pipe 318 is inclined and communicates with the collection box 314. An oil drain pipe 319 is fixedly connected to one side of the collection box 314.

[0024] In this embodiment, the pressure generated during the forming process of the screw component causes some lubricating oil to overflow. The overflowing lubricating oil enters the collection groove 311 and then flows out through the drainage groove 312 into the collection box 314 for collection. This avoids the lubricating oil from flowing onto the support platform 1 and contaminating it, as well as avoiding the waste of lubricating oil. Some lubricating oil enters the interior of the mold body 31 and is located at the top of the top plate 315. It then flows into the collection box 314 through the oil outlet pipe 318 for collection. This avoids the accumulation of too much lubricating oil inside the mold body 31. After entering the collection box 314, the lubricating oil flows into the oil storage box 32 through the oil drain pipe 319 for collection. Finally, it is delivered and sprayed by the micro oil pump 322, thereby realizing the recycling of lubricating oil.

[0025] like Figure 2 - Figure 4As shown, the oiling assembly includes an oil storage box 32, which is fixed to the support platform 1 on the side near the oil drain pipe 319. An oil inlet groove 321 is opened at the bottom end of the oil storage box 32 located at the oil drain pipe 319. A micro oil pump 322 is fixedly connected to one side of the top of the oil storage box 32. An oil delivery pipe 323 is fixedly connected to the top of the micro oil pump 322. A fixing plate 324 is fixedly connected to the end of the oil delivery pipe 323 away from the micro oil pump 322. The fixing plate 324 is fixed to a corner of the top of the mold body 31 near the oil drain pipe 319. A connecting pipe 325 is fixedly connected to the top side of the fixing plate 324 away from the oil delivery pipe 323. An oil spray head 326 is fixedly connected to the end of the connecting pipe 325 away from the fixing plate 324.

[0026] In this embodiment, the micro oil pump 322 is activated to deliver the lubricating oil in the oil storage box 32 to the oil delivery pipe 323, and then into the connecting pipe 325. Finally, the lubricating oil is sprayed onto the forming groove at the top of the mold body 31 through the oil spray head 326, thereby reducing the friction of the screw components. Therefore, there is no need for personnel to manually apply lubricating oil, which improves work efficiency.

[0027] like Figure 1 - Figure 3 As shown, the pressing assembly includes a bracket 21, which is fixed on both sides of the top of the support platform 1. A cylinder 22 is fixedly installed in the middle of the top of the bracket 21. The output end of the cylinder 22 slides through the bracket 21. A stamping block 23 is fixedly connected to the bottom of the cylinder 22. A limit plate 24 is fixedly connected to the top of the stamping block 23 at the bottom of the cylinder 22. Limit rods 25 are slidably connected to both ends of the limit plate 24. The limit rods 25 are fixedly connected to the bracket 21 and the support platform 1.

[0028] In this embodiment, during molding, the starting cylinder 22 drives the stamping block 23 and the limiting plate 24 to move downward. The stamping block 23 presses down on the screw component to achieve molding, while the limiting plate 24 slides on the limiting rod 25, thereby making the limiting plate 24 support the stamping block 23 and improve the stability of the stamping block 23.

[0029] Working principle: First, during use, the micro oil pump 322 is activated to deliver lubricating oil from the oil storage box 32 to the oil delivery pipe 323, then into the connecting pipe 325, and finally sprays lubricating oil onto the forming groove at the top of the mold body 31 through the oil spray nozzle 326, thereby reducing the friction of the screw components. When the pressure generated during the forming process of the screw components causes some lubricating oil to overflow, the overflowing lubricating oil enters the collection tank 311, and then flows out through the drainage channel 312 into the collection box 314 for collection, thereby preventing lubricating oil from flowing onto the support platform 1 and contaminating the support platform 1, and avoiding the waste of lubricating oil. Some lubricating oil enters the mold body 31. Inside, located at the top of the top plate 315, the oil flows into the collection box 314 through the oil outlet pipe 318, thus avoiding excessive accumulation of lubricating oil inside the mold body 31. After entering the collection box 314, the lubricating oil flows into the oil storage box 32 through the oil drain pipe 319, and is finally transported and sprayed by the micro oil pump 322, thereby realizing the recycling of lubrication. During molding, the starting cylinder 22 drives the stamping block 23 and the limiting plate 24 to move down. The stamping block 23 presses down on the screw component to achieve molding, while the limiting plate 24 slides on the limiting rod 25, thereby making the limiting plate 24 against the stamping block 23, improving the stability of the stamping block 23.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cold heading screw mold, comprising a support platform (1), characterized in that: A forming structure is provided at the middle of the top of the support platform (1). The forming structure includes a mold assembly and an oiling assembly. A pressing assembly is provided at the top of the mold assembly on the support platform (1). The mold assembly includes a mold body (31). The mold body (31) is fixed at the middle of the top of the support platform (1). A top plate (315) is slidably connected to the bottom of the interior of the mold body (31). A sealing ring (316) is fixedly connected to the middle of the top plate (315). A spring (317) is fixedly connected to the bottom of the top plate (315). The spring (317) is fixedly connected to the support platform (1).

2. The cold heading forming screw mold according to claim 1, characterized in that: The top of the mold body (31) is provided with a collection groove (311) on the outer side corresponding to the top plate (315). The outer side of the collection groove (311) is provided with a flow channel (312) in a ring array. The outer wall of the mold body (31) is fixedly connected to the flow channel (312). The bottom end of the mold body (31) is fixedly connected to the flow channel (313). The inside of the mold body (31) is fixedly connected to the top of the top plate (315) in a ring array with an oil outlet pipe (318). The oil outlet pipe (318) is inclined and communicates with the collection box (314). The side of the collection box (314) is fixedly connected to an oil drain pipe (319).

3. The cold heading forming screw mold according to claim 1, characterized in that: The oil supply assembly includes an oil storage box (32), which is fixed on the support platform (1) near the oil drain pipe (319). The oil storage box (32) has an oil inlet groove (321) at the bottom end of the oil drain pipe (319). A micro oil pump (322) is fixedly connected to one side of the top of the oil storage box (32), and an oil delivery pipe (323) is fixedly connected to the top of the micro oil pump (322).

4. The cold heading forming screw mold according to claim 3, characterized in that: A fixing plate (324) is fixedly connected to one end of the oil supply pipe (323) away from the micro oil pump (322). The fixing plate (324) is fixed to one corner of the top of the mold body (31) near the oil drain pipe (319). A connecting pipe (325) is fixedly connected to one side of the top of the fixing plate (324) away from the oil supply pipe (323). An oil spray head (326) is fixedly connected to one end of the connecting pipe (325) away from the fixing plate (324).

5. The cold heading forming screw mold according to claim 1, characterized in that: The pressing assembly includes a bracket (21), which is fixed on both sides of the top of the support platform (1). A cylinder (22) is fixedly installed in the middle of the top of the bracket (21). The output end of the cylinder (22) slides through the bracket (21). A stamping block (23) is fixedly connected to the bottom end of the cylinder (22).

6. The cold heading forming screw mold according to claim 5, characterized in that: The bottom end of the cylinder (22) is fixedly connected to the top end of the stamping block (23) by a limiting plate (24). The two ends of the limiting plate (24) are slidably connected to limiting rods (25). The limiting rods (25) are fixedly connected to the bracket (21) and the support platform (1).

Images