Bolt cold heading forming device
By designing an automatic feeding system, the problem of the lack of a feeding mechanism before processing in the bolt cold heading forming device was solved, realizing automated feeding, improving efficiency and reducing safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QUNLI FASTENER MFG CO LTD
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-17
AI Technical Summary
The existing bolt cold heading forming equipment lacks an automated feeding mechanism before processing, resulting in low efficiency and safety risks.
An automatic feeding system was designed, comprising components such as a support block, a housing, a cylinder, and a sliding component. Through the cooperation of the cylinder and the sliding component, the workpiece to be processed is automatically pushed, flipped, and clamped, ensuring that it smoothly enters the cold heading point for processing.
The automated feeding of the bolt cold heading forming device has been realized, which has improved processing efficiency and reduced the safety risks of manual operation.
Smart Images

Figure CN224128536U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt processing technology, and in particular to a bolt cold heading forming device. Background Technology
[0002] Cold heading forming equipment is a type of metal pressure processing equipment. It uses molds to extrude and plastically deform metal materials at room temperature, thereby continuously producing fasteners such as bolts, nuts, and pins, as well as complex irregular-shaped parts. The equipment typically includes processes such as feeding, shearing, preforming, multi-stage forming, and finished product output. It features high efficiency, automation, and high precision, and is widely used in the automotive, machinery, aerospace, and other fields.
[0003] According to the patent application published on the Internet (authorization announcement number: CN218475952 U), "This utility model relates to the field of bolt processing technology, and in particular to a cold heading device for high-strength bolts. It includes a frame, an adjusting assembly, and an ejector assembly. A cold heading seat is installed on the bottom inner wall of the frame, and a cold heading rod is installed on the top inner wall of the frame. A cold heading head is installed on the cold heading rod, and the adjusting assembly is installed on the cold heading rod. The ejector assembly includes a motor and a threaded rod, both of which are installed on the bottom inner wall of the cold heading seat. This utility model utilizes a motor, a threaded rod, a lifting plate, a top rod, a top plate, and a partition plate. The motor drives the threaded rod to rotate, which in turn drives the lifting plate to move vertically. The lifting plate, through the top rod, drives the top plate to move vertically, thereby lifting upwards and moving the bolt processed in the cold heading seat out, achieving automatic unloading and making it more convenient and efficient for workers to use the device."
[0004] Regarding the above description, the applicant believes the following problems exist: When the device is in use, the motor drives the first gear to rotate, and the first gear, through meshing with the second gear, drives the threaded rod to rotate. The threaded rod drives the lifting plate to move vertically, the lifting plate drives the top rod to move vertically, and the top rod drives the top plate to move vertically, thereby ejecting the processed bolts. However, it is worth noting that the loading process before processing still relies on manual operation. This step may not only slow down the overall processing efficiency, but also poses certain safety risks to employees who lack operating experience or safety awareness. Utility Model Content
[0005] To overcome the problem of the lack of a feeding mechanism before the equipment processes materials.
[0006] The technical solution of this utility model is as follows: a bolt cold heading forming device, including a support block; it also includes a shell and a cold heading assembly. The cold heading assembly is provided on the top of the support block, and the shell is fixedly connected to the top of the support block. A cylinder is fixedly connected inside the shell, and a sliding member is fixedly connected to the output end of the cylinder. A slide rail is slidably connected inside the sliding member. A limiting rod for limiting the sliding member is provided at the bottom of the slide rail. A rotating rod for supporting the loading clamp is rotatably connected inside the sliding member. A rotating member is fixedly connected to the rear end of the rotating rod, and a roller is rotatably connected to the outside of the rotating member. 1. A support member is fixedly connected to the front end of the rotating rod. A slide rail 2 is fixedly connected to the top of the support member. A sliding component 2 is slidably connected to the outside of the slide rail 2. A roller 2 is rotatably connected to the outside of the sliding component 2. A clamping clamp for holding the workpiece is fixedly connected to the top of the sliding component 2. A slide rail 3 is fixedly connected to the outside of the rotating rod. A cylinder 2 is set at the bottom of the slide rail 3. A sliding component 3 is fixedly connected to the output end of the cylinder 2. A support plate 1 is fixedly connected to the top of the outer shell. A cylinder 3 is fixedly connected to the top of the support plate 1. A feeding circular groove is set at the output end of the cylinder 3. A feeding square groove is fixedly connected to the outside of the feeding circular groove.
[0007] Preferably, the slider is provided with a hole at the position corresponding to the limiting rod, and the slider is slidably connected to the outside of the limiting rod.
[0008] Preferably, a groove is provided at the corresponding position of the outer shell and the roller, and the roller is slidably connected inside the outer shell.
[0009] Preferably, a groove is provided at the position corresponding to the roller 2 of the slider 3, and the roller 2 is slidably connected inside the slider 3.
[0010] Preferably, the fixing clamp is provided with multiple sets of crescent-shaped grooves on the outside, and its surface is coated with diamond powder.
[0011] Preferably, the cold heading assembly includes a base, which is fixedly connected to the top of the support block. A cold heading seat is fixedly connected to the top of the base. A support plate two is fixedly connected to the top of the base away from the cold heading seat. A top plate is fixedly connected to the outside of the support plate two. A cylinder four is fixedly connected to the bottom of the top plate. A cold heading head is fixedly connected to the output end of the cylinder four.
[0012] Preferably, cold heading holes are provided at the corresponding positions of the cold heading head and the cold heading seat, and the cold heading head is set on the top of the cold heading seat.
[0013] The beneficial effects of this utility model are as follows: The workpiece to be processed enters the conveying circular groove through the conveying square groove, and the cylinder three pushes it. When the workpiece is pushed out of the conveying circular groove, the cylinder two drives the sliding member three to move, so that the sliding member two moves closer to each other through the sliding groove of the sliding member three to clamp the workpiece to be processed. The cylinder one drives the sliding member one to move, so that the roller one slides in the outer shell groove. The rotating rod causes the loading clamp to flip the workpiece to be processed while moving, and sends it into the cold heading point. The cylinder two pushes the sliding member three in the opposite direction to release the loading clamp from the workpiece to be processed. The cylinder four is started to push the cold heading head. The workpiece to be processed is cold-headed through the cold heading seat and the cold heading head. This helps to solve the problem of the lack of a loading mechanism before processing. Attached Figure Description
[0014] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.
[0015] Figure 2 The diagram shown is a schematic representation of the feeding mechanism of this utility model.
[0016] Figure 3 The diagram shown is a schematic representation of the feeding clamp structure of this utility model.
[0017] Figure 4 The diagram shown is a schematic representation of the material conveying mechanism of this utility model.
[0018] Figure 5 The diagram shown is a structural schematic of the cold heading assembly of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Support block; 201. Outer shell; 202. Cylinder 1; 203. Sliding component 1; 204. Slide rail 1; 205. Limiting rod; 206. Rotating rod; 207. Rotating component; 208. Roller 1; 209. Support component; 210. Slide rail 2; 211. Sliding component 2; 212. Roller 2; 213. Fixing clamp; 214. Slide rail 3; 215. Cylinder 2; 216. Sliding component 3; 217. Support plate 1; 218. Cylinder 3; 219. Material conveying circular trough; 220. Material conveying square trough; 301. Base; 302. Cold heading seat; 303. Support plate 2; 304. Top plate; 305. Cylinder 4; 306. Cold heading head. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-5This utility model provides an embodiment: a bolt cold heading forming device, including a support block 1; it also includes a housing 201 and a cold heading assembly. The cold heading assembly is provided on the top of the support block 1, and the housing 201 is fixedly connected to the top of the support block 1. A cylinder 202 is fixedly connected inside the housing 201. A sliding member 203 is fixedly connected to the output end of the cylinder 202. A slide rail 204 is slidably connected inside the sliding member 203. A limiting rod 205 for limiting the sliding member 203 is provided at the bottom of the slide rail 204. A rotating rod 206 for supporting the loading clamp is rotatably connected inside the sliding member 203. A rotating member 207 is fixedly connected to the rear end of the rotating rod 206. A roller is rotatably connected to the outside of the rotating member 207. 208. A support member 209 is fixedly connected to the front end of the rotating rod 206. A slide rail 210 is fixedly connected to the top of the support member 209. A sliding member 211 is slidably connected to the outside of the slide rail 210. A roller 212 is rotatably connected to the outside of the sliding member 211. A clamping clamp 213 for holding the workpiece is fixedly connected to the top of the sliding member 211. A slide rail 214 is fixedly connected to the outside of the rotating rod 206. A cylinder 215 is set at the bottom of the slide rail 214. A sliding member 216 is fixedly connected to the output end of the cylinder 215. A support plate 217 is fixedly connected to the top of the outer shell 201. A cylinder 218 is fixedly connected to the top of the support plate 217. A feeding groove 219 is set at the output end of the cylinder 218. A square conveying trough 220 is fixedly connected to the outside of the groove 219. The workpiece to be processed enters the circular conveying trough 219 through the square conveying trough 220. Cylinder 3 218 pushes it. When the workpiece is pushed out of the circular conveying trough 219, cylinder 215 drives the sliding member 3 216 to move, so that the sliding members 211 move closer to each other through the sliding groove of the sliding member 3 216 to clamp the workpiece to be processed. Cylinder 1 202 drives the sliding member 1 203 to move, so that the roller 1 208 slides in the groove of the outer shell 201. The rotating rod 206 causes the loading clamp to flip the workpiece to be processed while moving, and send it into the cold heading assembly. A hole is opened at the corresponding position of the sliding member 1 203 and the limiting rod 205. The sliding member 1 203 is slidably connected to the outside of the limiting rod 205, and the hole allows the sliding member 1 203 to pass through. The limiting rod 205 helps to limit the movement of the sliding part 203; the outer shell 201 has a groove at the corresponding position of the roller 208, and the roller 208 is slidably connected inside the outer shell 201. The roller 208 helps to drive the loading clamp to rotate while it is moving during its sliding; the sliding part 216 has a groove at the corresponding position of the roller 212, and the roller 212 is slidably connected inside the sliding part 216. The roller 212 helps to drive the sliding part 211 closer to or further away during its sliding; the fixed clamp 213 has multiple sets of crescent-shaped grooves on its outside, and its surface is sprayed with diamond powder. The fixed clamp 213 helps to clamp the workpiece to be processed more firmly.
[0022] Please see Figure 5 In this embodiment, the cold heading assembly includes a base 301, which is fixedly connected to the top of the support block 1. A cold heading seat 302 is fixedly connected to the top of the base 301. A support plate 303 is fixedly connected to the end of the base 301 away from the cold heading seat 302. A top plate 304 is fixedly connected to the outside of the support plate 303. A cylinder 305 is fixedly connected to the bottom of the top plate 304. A cold heading head 306 is fixedly connected to the output end of the cylinder 305. When the feeding clamp picks up the material to be processed... When the workpiece is fed into the cold heading point, cylinder 215 pushes sliding part 316 in the opposite direction to loosen the loading clamp from the workpiece. Cylinder 4305 is then activated to push the cold heading head 306. The workpiece is then cold-headed through the cold heading seat 302 and the cold heading head 306. Cold heading holes are provided at the corresponding positions of the cold heading head 306 and the cold heading seat 302. The cold heading head 306 is located on the top of the cold heading seat 302. The presence of the cold heading head 306 helps to cooperate with the cold heading seat 302 to cold-head the workpiece.
[0023] During operation, the workpiece enters the conveying circular groove 219 through the conveying square groove 220. Cylinder 3 218 pushes it. When the workpiece is pushed out of the conveying circular groove 219, cylinder 2 215 drives the sliding member 3 216 to move, so that the sliding member 2 211 moves closer to the workpiece through the sliding groove of the sliding member 3 216. Cylinder 1 202 drives the sliding member 1 203 to move, so that the roller 1 208 slides in the groove of the outer shell 201. The rotating rod 206 causes the loading clamp to flip while moving, sending it to the cold heading point. Cylinder 2 215 pushes the sliding member 3 216 in the opposite direction to release the loading clamp from the workpiece. Cylinder 4 305 is activated to push the cold heading head 306. The workpiece is cold-headed through the cold heading seat 302 and the cold heading head 306.
[0024] Through the above steps, the workpiece to be processed enters the conveying circular groove 219 through the conveying square groove 220. The cylinder 3 218 pushes it. When the workpiece is pushed out of the conveying circular groove 219, the cylinder 215 drives the sliding member 3 216 to move, so that the sliding member 211 moves closer to each other through the sliding groove of the sliding member 3 216 to clamp the workpiece. The cylinder 1 202 drives the sliding member 203 to move, so that the roller 1 208 slides in the groove of the outer shell 201. The rotating rod 206 causes the loading clamp to flip the workpiece while moving, sending it into the cold heading point. The cylinder 215 pushes the sliding member 3 216 in the opposite direction to release the loading clamp from the workpiece. The cylinder 4 305 is activated to push the cold heading head 306. The workpiece is cold-headed through the cold heading seat 302 and the cold heading head 306, which helps to solve the problem of the lack of a loading mechanism before processing.
Claims
1. A bolt cold heading forming device comprising a support block (1); characterized in that: It also includes a shell (201) and a cold heading assembly. The cold heading assembly is provided on the top of the support block (1). The shell (201) is fixedly connected to the top of the support block (1). A cylinder (202) is fixedly connected inside the shell (201). A sliding member (203) is fixedly connected to the output end of the cylinder (202). A slide rail (204) is slidably connected inside the sliding member (203). A limiting rod (205) for limiting the sliding member (203) is provided at the bottom of the slide rail (204). A rotating rod (206) for supporting the loading clamp is rotatably connected inside the sliding member (203). A rotating member (207) is fixedly connected to the rear end of the rotating rod (206). A roller (208) is rotatably connected to the outside of the rotating member (207). A support member (209) is fixedly connected to the front end of the rotating rod (206). (209) A slide rail 2 (210) is fixedly connected to the top. A sliding component 2 (211) is slidably connected to the outside of the slide rail 2 (210). A roller 2 (212) is rotatably connected to the outside of the sliding component 2 (211). A fixed clamp (213) for clamping the workpiece is fixedly connected to the top of the sliding component 2 (211). A slide rail 3 (214) is fixedly connected to the outside of the rotating rod (206). A cylinder 2 (215) is set at the bottom of the slide rail 3 (214). A sliding component 3 (216) is fixedly connected to the output end of the cylinder 2 (215). A support plate 1 (217) is fixedly connected to the top of the outer shell (201). A cylinder 3 (218) is fixedly connected to the top of the support plate 1 (217). A material conveying trough (219) is set at the output end of the cylinder 3 (218). A material conveying square trough (220) is fixedly connected to the outside of the material conveying trough (219).
2. A bolt cold heading forming device according to claim 1, characterized in that: A hole is provided at the corresponding position of the sliding component (203) and the limiting rod (205), and the sliding component (203) is slidably connected to the outside of the limiting rod (205).
3. A bolt cold heading forming device according to claim 1, characterized in that: The outer shell (201) has a groove at the corresponding position of the roller (208), and the roller (208) is slidably connected inside the outer shell (201).
4. A bolt cold heading forming device according to claim 1, characterized in that: Sliding grooves are provided at the corresponding positions of sliding member three (216) and roller two (212), and roller two (212) is slidably connected inside sliding member three (216).
5. A bolt cold heading forming device according to claim 1, characterized in that: The fixing clamp (213) has multiple sets of crescent-shaped grooves on its exterior, and its surface is coated with diamond powder.
6. A bolt cold heading forming device according to claim 1, characterized in that: The cold heading assembly includes a base (301), which is fixedly connected to the top of the support block (1). The top of the base (301) is fixedly connected to the oil-cooled cold heading seat (302). The top of the base (301) away from the cold heading seat (302) is fixedly connected to a support plate (303). The support plate (303) is fixedly connected to the outside of the support plate (303). The bottom of the top plate (304) is fixedly connected to a cylinder (305). The output end of the cylinder (305) is fixedly connected to a cold heading head (306).
7. A bolt cold heading forming device according to claim 6, characterized in that: Cold heading head (306) and cold heading seat (302) are provided with cold heading holes at corresponding positions, and the cold heading head (306) is set on the top of the cold heading seat (302).
Citation Information
Patent Citations
Cold heading forming device for high-strength bolt
CN218475952U