Nut blank cold heading cutting device
The nut blank cutting device, which uses a servo motor to drive a bidirectional lead screw and an electric telescopic rod, solves the problem of wobbling caused by inaccurate positioning during the nut blank cutting process, thus improving cutting efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SHUNTUO AUTO PARTS CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-29
AI Technical Summary
Existing cold heading cutting devices for nut blanks can only cut one blank at a time, and lack positioning during the cutting process, causing the blank to wobble or shift, affecting the cutting quality.
A servo motor drives a bidirectional lead screw to rotate, and the cutting position is adjusted by an adjusting block. Combined with the first electric telescopic rod, the cutting blade moves up and down. With the clamping mechanism of spring and limit rod, automatic feeding and cutting are achieved. The stability of the clamping plate is enhanced by sliding groove and sliding block.
It achieves automatic positioning and stabilization of nut blanks, improves cutting efficiency and quality, and avoids quality problems caused by blank shaking.
Smart Images

Figure CN224294794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut blank cutting technology, specifically a nut blank cold heading cutting device. Background Technology
[0002] Nuts are fasteners that are screwed onto bolts or screws to provide a fastening effect. They are a necessary component in all manufacturing machinery. Depending on the material, they are divided into several types, such as carbon steel, stainless steel, and non-ferrous metals. Nut blanks need to be cut during the processing of nut blanks.
[0003] However, current cold heading cutting devices for nut blanks can only cut one blank at a time, and the blank is not positioned during the cutting process, which causes the nut blank to wobble or shift during processing, thus affecting the quality of the cut nut blank. Therefore, those skilled in the art have provided a cold heading cutting device for nut blanks to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a cold heading cutting device for nut blanks to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A cold heading cutting device for nut blanks includes a support frame, a nut blank cutting mechanism, and a nut blank clamping mechanism. A nut blank processing table is mounted on the upper surface of the support frame. The nut blank cutting mechanism includes two fixed plates, the upper surfaces of which are connected to the nut blank processing table. Bearings are embedded on the side of the two fixed plates that are close to each other.
[0007] As a further improvement of this utility model: a bidirectional lead screw is installed between the inner rings of the two bearings, and an adjusting block is threaded onto the outer surface of the bidirectional lead screw.
[0008] As a further improvement of this utility model: a fixing frame is installed on the bottom surface of the adjusting block, and a first electric telescopic rod is installed on the upper surface of the two fixing frames.
[0009] As a further embodiment of this utility model: an installation block is installed at the output end of the first electric telescopic rod, a drive motor is installed on the right side of the installation block, a nut blank cutting blade is installed at the output end of the drive motor, and a servo motor is installed on the back of one of the fixing plates, the output end of the servo motor is connected to a bidirectional lead screw through a coupling.
[0010] As a further embodiment of this utility model: the nut blank clamping mechanism includes two vertical beams, the two vertical beams are connected to the nut blank processing table on their adjacent sides, and a crossbeam is installed on the adjacent sides of the two vertical beams.
[0011] As a further embodiment of this utility model: a second electric telescopic rod is installed on the bottom surface of the crossbeam, a support plate is installed at the output end of the second electric telescopic rod, and two limiting tubes are installed on the bottom surface of the support plate.
[0012] As a further embodiment of this utility model: a limiting rod is sleeved inside each of the two limiting tubes, and a nut blank clamping plate is installed on the bottom surface of the two limiting rods. Two springs are installed on the upper surface of the nut blank clamping plate, and the ends of the two springs away from the nut blank clamping plate are connected to a support plate.
[0013] As a further embodiment of this utility model: sliding grooves are provided on the outer surfaces of both vertical beams, and sliding blocks are slidably connected inside the two sliding grooves. The sides of the two sliding blocks that are close to each other are connected to the nut blank clamping plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This nut blank cold heading cutting device uses a servo motor to drive a bidirectional lead screw to rotate, which allows the adjusting block to move the cutting assembly laterally, thus flexibly adjusting the cutting position. The first electric telescopic rod can drive the drive motor and the cutting blade to move up and down, realizing automatic feed cutting. Through the cooperation of springs and limit rods, the clamping plate can adaptively clamp blanks of different thicknesses, preventing the blank from shaking during cutting. At the same time, the setting of sliding groove and sliding block enhances the stability of the clamping plate movement, and the buffering effect of the spring can also reduce the impact force during cutting. Attached Figure Description
[0016] Figure 1 A three-dimensional structural schematic diagram of a cold heading and cutting device for nut blanks;
[0017] Figure 2 A three-dimensional structural schematic diagram of a cold heading and cutting device for nut blanks, viewed from the side.
[0018] Figure 3 A top view of a three-dimensional structural schematic diagram of a cold heading and cutting device for nut blanks;
[0019] Figure 4 A three-dimensional structural schematic diagram of a cold heading and cutting device for nut blanks, viewed from the rear.
[0020] Figure 5 In a cold heading cutting device for nut blanks Figure 4A magnified structural diagram of part A in the middle.
[0021] In the diagram: 1. Support frame; 2. Nut blank cutting mechanism; 201. Fixing plate; 202. Bearing; 203. Two-way lead screw; 204. Adjusting block; 205. Servo motor; 206. Fixing frame; 207. First electric telescopic rod; 208. Mounting block; 209. Drive motor; 210. Nut blank cutting disc; 3. Nut blank clamping mechanism; 301. Vertical beam; 302. Horizontal beam; 303. Second electric telescopic rod; 304. Support plate; 305. Limiting tube; 306. Limiting rod; 307. Nut blank clamping plate; 308. Spring; 309. Sliding groove; 310. Sliding block; 4. Nut blank processing table. Detailed Implementation
[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Please see Figures 1-5In this embodiment of the utility model, a cold heading cutting device for nut blanks includes a support frame 1, a nut blank cutting mechanism 2, and a nut blank clamping mechanism 3. A nut blank processing table 4 is installed on the upper surface of the support frame 1. The nut blank cutting mechanism 2 includes two fixing plates 201, the upper surfaces of which are connected to the nut blank processing table 4. Bearings 202 are embedded on the side of the two fixing plates 201 that are close to each other. This not only enables the equipment to automatically cut the nut blanks, but also to automatically clamp the nut blanks, thereby improving the quality of the nut blanks cut by the equipment. This solves the problem mentioned in the background art that the current cold heading cutting device for nut blanks can only cut one blank at a time, and the blank is not positioned during the cutting process, causing the nut blank to shake or shift during processing, thus affecting the quality of the cut nut blanks.
[0025] Two bearings 202 have a bidirectional lead screw 203 installed on their inner rings. An adjusting block 204 is threaded onto the outer surface of the bidirectional lead screw 203. A fixing bracket 206 is installed on the bottom surface of the adjusting block 204. A first electric telescopic rod 207 is installed on the upper surface of the two fixing brackets 206. An installation block 208 is installed at the output end of the first electric telescopic rod 207. A drive motor 209 is installed on the right side of the installation block 208. A nut blank cutting blade 210 is installed at the output end of the drive motor 209. A servo motor 205 is installed on the back of one of the fixing plates 201. The output end of the servo motor 205 is connected to the bidirectional lead screw 203 through a coupling. This allows the equipment to automatically cut the nut blank, thereby improving the cutting efficiency of the nut blank.
[0026] The nut blank clamping mechanism 3 includes two vertical beams 301. The sides of the two vertical beams 301 that are close to each other are connected to the nut blank processing table 4. A horizontal beam 302 is installed on the side of the two vertical beams 301 that is close to each other. A second electric telescopic rod 303 is installed on the bottom surface of the horizontal beam 302. A support plate 304 is installed at the output end of the second electric telescopic rod 303. Two limiting tubes 305 are installed on the bottom surface of the support plate 304. A limiting rod 306 is sleeved inside each of the two limiting tubes 305. The nut blank is installed on the bottom surface of the two limiting rods 306. The material clamping plate 307 has two springs 308 installed on its upper surface. The ends of the two springs 308 away from the material clamping plate 307 are connected to the support plate 304. The outer surfaces of the two vertical beams 301 are provided with sliding grooves 309. Sliding blocks 310 are slidably connected inside the two sliding grooves 309. The sides of the two sliding blocks 310 that are close to each other are connected to the material clamping plate 307. This allows the equipment to automatically clamp the nut blank, thereby improving the quality of the nut blanks cut by the equipment.
[0027] The working principle of this utility model is as follows: First, the worker can place the nut blank on the nut blank processing table 4, and then start the nut blank clamping mechanism 3. The second electric telescopic rod 303 drives the support plate 304 to descend. The support plate 304 pushes the nut blank clamping plate 307 down to clamp the blank through the limit rod 306. During the process, the spring 308 can be adaptively adjusted according to the blank thickness. At the same time, the sliding block 310 slides in the sliding groove 309 to ensure that the nut blank clamping plate 307 presses down smoothly to fix the blank. During cutting, the servo motor 20... 5. During operation, the bidirectional lead screw 203 is rotated via the coupling, causing the adjusting block 204 to move laterally on the bidirectional lead screw 203, adjusting the position of the nut blank cutting blade 210. After positioning, the first electric telescopic rod 207 extends, and the drive motor 209 drives the cutting blade to move down to the blank. The drive motor 209 rotates at high speed to drive the nut blank cutting blade 210 to cut the blank. After completion, the first electric telescopic rod 207 retracts, the servo motor 205 drives the bidirectional lead screw 203 to reverse, and the adjusting block 204 drives the nut blank cutting mechanism 2 to reset.
[0028] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A cold heading and cutting device for nut blanks, comprising a support frame (1), a nut blank cutting mechanism (2), and a nut blank clamping mechanism (3), characterized in that, The upper surface of the support frame (1) is equipped with a nut blank processing table (4). The nut blank cutting mechanism (2) includes two fixing plates (201). The upper surfaces of the two fixing plates (201) are connected to the nut blank processing table (4). Bearings (202) are inlaid on the side of the two fixing plates (201) that are close to each other.
2. The nut blank cold heading cutting device according to claim 1, characterized in that, The inner rings of the two bearings (202) are connected by a double-acting lead screw (203), and the outer surface of the double-acting lead screw (203) is threaded with an adjusting block (204).
3. The nut blank cold heading cutting device according to claim 2, characterized in that, The bottom surface of the adjusting block (204) is equipped with a fixing frame (206), and the upper surface of the two fixing frames (206) is equipped with a first electric telescopic rod (207).
4. The nut blank cold heading cutting device according to claim 3, characterized in that, An installation block (208) is installed at the output end of the first electric telescopic rod (207). A drive motor (209) is installed on the right side of the installation block (208). A nut blank cutting blade (210) is installed at the output end of the drive motor (209). A servo motor (205) is installed on the back of one of the fixing plates (201). The output end of the servo motor (205) is connected to a bidirectional lead screw (203) through a coupling.
5. The nut blank cold heading cutting device according to claim 1, characterized in that, The nut blank clamping mechanism (3) includes two vertical beams (301), and the two vertical beams (301) are connected to the nut blank processing table (4) on their adjacent sides. A crossbeam (302) is installed on the two vertical beams (301) on their adjacent sides.
6. The nut blank cold heading cutting device according to claim 5, characterized in that, The bottom surface of the crossbeam (302) is equipped with a second electric telescopic rod (303), and the output end of the second electric telescopic rod (303) is equipped with a support plate (304). The bottom surface of the support plate (304) is equipped with two limiting tubes (305).
7. The nut blank cold heading cutting device according to claim 6, characterized in that, Both limiting tubes (305) are fitted with limiting rods (306) inside. The bottom surfaces of the two limiting rods (306) are jointly fitted with nut blank clamping plates (307). The upper surface of the nut blank clamping plates (307) is fitted with two springs (308). The ends of the two springs (308) away from the nut blank clamping plates (307) are connected to the support plate (304).
8. The nut blank cold heading cutting device according to claim 5, characterized in that, The outer surfaces of the two vertical beams (301) are provided with sliding grooves (309), and sliding blocks (310) are slidably connected inside the two sliding grooves (309). The sides of the two sliding blocks (310) that are close to each other are connected to the nut blank clamping plate (307).