A multi-specification nut continuous cold upsetting conversion device

Abstract

The utility model discloses a kind of multi-specification nut continuous cold heading conversion devices, belong to nut processing technical field, including cold heading mechanism, driving mechanism and conveying mechanism, the cold heading mechanism includes support frame, the bottom surface of the support frame is fixedly connected with bottom plate, by first rotary motor driving disc, two groups of stamping head of different specifications can be switched quickly, match hydraulic cylinder accurate control program, dispense with artificial dismounting debugging link, change type time is greatly shortened, effectively improve equipment continuous operation efficiency, driving mechanism is driven with pulley cooperation first bearing, guarantee fixed rod driven rotary table steady rotation, realize two group mould accurate alignment stamping head, avoid coaxiality deviation, conveying mechanism realizes blank automation conveying with conveyor belt and deflector, accurate link cold heading station, reduce manual intervention, overall device gives consideration to multi-specification flexible production, automation and high accuracy, reduce production cost, fit market small-batch multi-batch production demand.

Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, specifically a continuous cold heading conversion device for multi-specification nuts. Background Technology

[0002] In the field of machinery manufacturing, nuts, as basic fasteners, are in high demand and come in a variety of specifications (such as nuts of different diameters, pitches, and thicknesses), and are widely used in industries such as automobiles, home appliances, construction, and engineering machinery. Cold heading, due to its advantages such as high material utilization (no or minimal cutting), high production efficiency, and excellent mechanical properties (work hardening improves strength), has become a core process for the mass production of nuts.

[0003] Traditional nut cold heading equipment is mostly single-specification dedicated type. When it is necessary to switch to produce nuts of different specifications, it is necessary to manually disassemble the original mold, replace the stamping head and mold with the appropriate specifications, and readjust key indicators such as stamping stroke, mold positioning accuracy, and pressure parameters. This process takes a long time, affects production efficiency, and increases production costs. Therefore, those skilled in the art have provided a multi-specification nut continuous cold heading conversion device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a continuous cold heading conversion device for multi-specification nuts 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 multi-specification nut continuous cold heading conversion device includes a cold heading mechanism, a drive mechanism, and a conveying mechanism. The cold heading mechanism includes a support frame, a base plate fixedly connected to the bottom surface of the support frame, a first rotary motor fixedly installed on the inner bottom wall of the support frame, a connecting rod fixedly connected to the output end of the first rotary motor, a disc fixedly connected to one end of the connecting rod, two sets of hydraulic cylinders fixedly installed on the bottom surface of the disc, hydraulic rods fixedly connected to the output ends of both sets of hydraulic cylinders, and punch heads installed at the output ends of both sets of hydraulic rods. The drive mechanism includes a rotary table, two sets of molds fixedly connected to the upper surface of the rotary table.

[0007] As a further improvement of this utility model: a control board is fixedly installed on the back of the support frame, and two first bearings are fixedly embedded on the upper surface of the base plate.

[0008] As a further embodiment of this utility model: the inner rings of the two first bearings are fixedly connected to a fixing rod, and the outer surfaces of the two fixing rods are fixedly connected to pulleys, and the two pulleys are connected by belt drive.

[0009] As a further embodiment of this utility model: a fixing frame is fixedly connected to the upper surface of the base plate, and a second rotary motor is fixedly installed on the inner bottom wall of the fixing frame.

[0010] As a further embodiment of this utility model: one end of one of the fixed rods is fixedly connected to the rotary table, and one end of the fixed rod is fixedly connected to the output end of the second rotary motor.

[0011] As a further embodiment of this utility model: the conveying mechanism includes two horizontal plates, and the upper surface of the base plate is fixedly connected to the bottom surface of the two horizontal plates.

[0012] As a further embodiment of this utility model: a drive motor is fixedly installed on the back of one of the horizontal plates, and second bearings arranged at equal intervals are fixedly embedded on the side of the two horizontal plates that are close to each other. A round rod is fixedly connected to the inner ring of each group of second bearings, and one end of one of the round rods is fixedly connected to the output end of the drive motor.

[0013] As a further embodiment of this utility model: each of the circular rods is fixedly connected to a transmission roller on its outer surface, each of the transmission rollers is connected to a conveyor belt for transmission, and the upper surfaces of the two horizontal plates are connected to guide plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This multi-specification nut continuous cold heading conversion device uses a first rotary motor to drive a disc, enabling rapid switching between two sets of stamping heads adapted to different specifications. Combined with precise hydraulic cylinder control, it eliminates manual disassembly and adjustment, significantly shortening changeover time and effectively improving continuous operation efficiency. The drive mechanism uses a belt pulley transmission in conjunction with a first bearing to ensure the fixed rod drives the rotary table to rotate smoothly, achieving precise alignment of the two sets of molds with the stamping heads and avoiding coaxiality deviations. Combined with the stable driving force of the second rotary motor, it significantly reduces the product dimensional deviation rate, improving nut forming accuracy and consistency. The conveying mechanism uses a conveyor belt and guide plate to achieve automated blank transport, precisely connecting to the cold heading station and reducing manual intervention. Furthermore, it coordinates with the cold heading and drive mechanism through a control board to further optimize the production rhythm. The overall device combines flexible multi-specification production, automation, and high precision, reducing production costs and meeting the market's demand for small-batch, multi-production. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a multi-specification nut continuous cold heading conversion device;

[0017] Figure 2 This is a rear view of the horizontal plate in a multi-specification nut continuous cold heading conversion device;

[0018] Figure 3This is a side view of a multi-specification nut continuous cold heading conversion device;

[0019] Figure 4 A top view of a guide plate in a multi-specification nut continuous cold heading conversion device;

[0020] Figure 5 This is a side sectional view of a multi-specification nut continuous cold heading conversion device.

[0021] In the diagram: 1. Cold heading mechanism; 2. Drive mechanism; 3. Conveying mechanism; 4. Base plate; 101. Support frame; 102. First rotary motor; 103. Connecting rod; 104. Disc; 105. Hydraulic cylinder; 106. Hydraulic rod; 107. Punch head; 108. Control board; 201. First bearing; 202. Fixed rod; 203. Pulley; 204. Fixed frame; 205. Second rotary motor; 206. Rotary table; 207. Mold; 301. Horizontal plate; 302. Drive motor; 303. Second bearing; 304. Round rod; 305. Transmission roller; 306. Conveyor belt; 307. Guide plate. Detailed Implementation

[0022] Please see Figures 1-5 In this embodiment of the present invention, a multi-specification nut continuous cold heading conversion device includes a cold heading mechanism 1, a drive mechanism 2, and a conveying mechanism 3. The cold heading mechanism 1 includes a support frame 101, a base plate 4 fixedly connected to the bottom surface of the support frame 101, a first rotary motor 102 fixedly installed on the inner bottom wall of the support frame 101, a connecting rod 103 fixedly connected to the output end of the first rotary motor 102, a disc 104 fixedly connected to one end of the connecting rod 103, two sets of hydraulic cylinders 105 fixedly installed on the bottom surface of the disc 104, hydraulic rods 106 fixedly connected to the output ends of both sets of hydraulic cylinders 105, and punch heads 107 installed at the output ends of both sets of hydraulic rods 106. The drive mechanism 2 includes a rotary table. 206. Two sets of molds 207 are fixedly connected to the upper surface of the rotary table 206. The first rotary motor 102 drives the disc 104 to rotate through the drive connecting rod 103, realizing the rapid switching of the two sets of stamping heads 107 without manual replacement, which greatly shortens the changeover time for multi-specification production and improves the flexibility of the equipment. The disc 104 carries two sets of hydraulic cylinders 105 and stamping heads 107. The rotation realizes the station conversion of stamping heads 107 of different specifications. The integrated design reduces the space occupied by parts and improves the switching efficiency. The stamping head 107 directly contacts the blank to complete the cold heading. The two sets of different specifications are designed to adapt to multi-variety production, without the need for frequent replacement, reducing manual operation errors and improving product size consistency.

[0023] A control board 108 is fixedly installed on the back of the support frame 101. Two first bearings 201 are fixedly embedded on the upper surface of the base plate 4. The inner rings of the two first bearings 201 are fixedly connected to fixed rods 202. The outer surfaces of the two fixed rods 202 are fixedly connected to pulleys 203. The two pulleys 203 are connected by belt drive. A fixed frame 204 is fixedly connected to the upper surface of the base plate 4. A second rotary motor 205 is fixedly installed on the inner bottom wall of the fixed frame 204. One end of one fixed rod 202 is fixedly connected to the rotary table 206, and the other end of one fixed rod 202 is fixedly connected to the output end of the second rotary motor 205. The pulleys 203 achieve synchronous rotation of the two fixed rods 202 through the belt, ensuring that the rotary table 206 is subjected to balanced force, avoiding rotational deviation caused by unilateral drive, and improving the alignment accuracy of the mold 207. The mold 207 has two sets of different specifications designed to adapt to the forming of various types of nuts. It is precisely matched with the stamping head 107 to ensure the accuracy of the nut's shape and inner hole size after cold heading, and reduce the scrap rate.

[0024] The conveying mechanism 3 includes two horizontal plates 301. The upper surface of the base plate 4 is fixedly connected to the bottom surface of the two horizontal plates 301. A drive motor 302 is fixedly mounted on the back of one of the horizontal plates 301. Second bearings 303 arranged at equal intervals are fixedly embedded on the sides of the two horizontal plates 301 that are close to each other. A round rod 304 is fixedly connected to the inner ring of each set of second bearings 303. One end of one round rod 304 is fixedly connected to the output end of the drive motor 302. A transmission device is fixedly connected to the outer surface of each round rod 304. The moving roller 305 and each drive roller 305 are connected to the conveyor belt 306. The upper surfaces of the two horizontal plates 301 are connected to the guide plates 307. The drive motor 302 provides power to the conveyor belt 306 and can adjust the speed to match the cold heading rhythm, ensuring continuous and stable billet supply and reducing the uncertainty of manual feeding. The guide plates 307 can adjust the spacing to guide billets of different specifications on the conveyor belt 306 to accurately enter the mold 207, avoid billet deviation and accumulation, ensure the accuracy of the feeding position, and improve the cold heading qualification rate.

[0025] The working principle of this utility model is as follows: First, when the device is working, the conveying mechanism 3 starts feeding material, the drive motor 302 is energized and runs, driving the connected round rod 304 to rotate. The round rod 304 is stably transmitted under the support of the second bearing 303, which in turn drives the transmission roller 305 fixed on the outer surface to rotate synchronously. The transmission roller 305 drives the conveyor belt 306 to move cyclically. The nut blank is placed on the conveyor belt 306 and, guided by the guide plate 307 at the top of the two horizontal plates 301, is accurately conveyed to one of the molds 207 on the surface of the rotary table 206. Immediately after the blank is in place, the drive mechanism 2 starts the station switching, the second rotary motor 205 outputs power, driving a fixed rod 202 fixed thereto to rotate. This fixed rod 202 drives another fixed rod through the pulley 203 on the outer surface and the belt. The two fixed rods 202 rotate synchronously; both fixed rods 202 rotate stably on the inner ring of the first bearing 201 on the base plate 4, which eventually drives the top rotary table 206 to rotate smoothly, accurately transferring the mold 207 containing the blank to the bottom of the cold heading mechanism 1. Then the cold heading mechanism 1 performs the forming operation. The control board 108 issues a command, the first rotary motor 102 starts, and drives the disc 104 to rotate through the connecting rod 103, turning the punch head 107, which is adapted to the current nut specification, to the top of the mold 207. Then the two sets of hydraulic cylinders 105 start synchronously, pushing the hydraulic rod 106 to extend downward, driving the punch head 107 to apply pressure to the blank in the mold 207, completing the cold heading. Finally, after forming, all parts are reset, the rotary table 206 transfers the next set of molds 207, and the conveyor belt 306 continues to supply material, realizing continuous production.

[0026] 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.

Claims

1. A continuous cold heading conversion device for multi-specification nuts, characterized in that, The device includes a cold heading mechanism (1), a drive mechanism (2), and a conveying mechanism (3). The cold heading mechanism (1) includes a support frame (101). A base plate (4) is fixedly connected to the bottom surface of the support frame (101). A first rotary motor (102) is fixedly installed on the inner bottom wall of the support frame (101). A connecting rod (103) is fixedly connected to the output end of the first rotary motor (102). A disc (104) is fixedly connected to one end of the connecting rod (103). Two sets of hydraulic cylinders (105) are fixedly installed on the bottom surface of the disc (104). A hydraulic rod (106) is fixedly connected to the output end of each of the two sets of hydraulic cylinders (105). A punch head (107) is installed at the output end of each of the two sets of hydraulic rods (106). The drive mechanism (2) includes a rotary table (206). Two sets of molds (207) are fixedly connected to the upper surface of the rotary table (206).

2. A multi-specification nut continuous cold upset conversion device according to claim 1, characterized in that, A control plate (108) is fixedly installed on the back of the support frame (101), and two first bearings (201) are fixedly embedded on the upper surface of the base plate (4).

3. A multi-specification nut continuous cold upset conversion device according to claim 2, characterised in that, The inner rings of the two first bearings (201) are fixedly connected to a fixing rod (202), and the outer surfaces of the two fixing rods (202) are fixedly connected to a pulley (203). The two pulleys (203) are connected by belt drive.

4. The multi-specification nut continuous cold heading conversion device according to claim 1, characterized in that, A fixing frame (204) is fixedly connected to the upper surface of the base plate (4), and a second rotary motor (205) is fixedly installed on the inner bottom wall of the fixing frame (204).

5. A multi-specification nut continuous cold heading conversion device according to claim 3, characterized in that, One end of one of the fixed rods (202) is fixedly connected to the rotary table (206), and one end of the fixed rod (202) is fixedly connected to the output end of the second rotary motor (205).

6. The multi-specification nut continuous cold heading conversion device according to claim 1, characterized in that, The conveying mechanism (3) includes two horizontal plates (301), and the upper surface of the base plate (4) is fixedly connected to the bottom surface of the two horizontal plates (301).

7. A multi-specification nut continuous cold heading conversion device according to claim 6, characterized in that, A drive motor (302) is fixedly installed on the back of one of the horizontal plates (301). Two second bearings (303) are fixedly embedded on the side of the two horizontal plates (301) that are close to each other. A round rod (304) is fixedly connected to the inner ring of each set of second bearings (303). One end of one of the round rods (304) is fixedly connected to the output end of the drive motor (302).

8. A multi-specification nut continuous cold heading conversion device according to claim 7, characterized in that, Each of the round rods (304) has a transmission roller (305) fixedly connected to its outer surface, and each of the transmission rollers (305) is connected to a conveyor belt (306) for transmission. The upper surfaces of the two horizontal plates (301) are connected to guide plates (307).

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