A multi-station cold header

Abstract

The utility model discloses a kind of multi-station cold heading device, including fixed mould, punch and intermittent conveying mechanism located on rack, intermittent conveying mechanism includes conveying belt, several conveying plates, lifting support, driving wheel and passive wheel, conveying belt is wound on driving wheel and passive wheel, fixed block is equipped on conveying plate, fixed block is equipped with locating groove, lifting support is connected with lifting drive mechanism, driving wheel is connected with rotary drive mechanism, fixed mould is equipped with several moulds, form several cold heading stations, corresponding locating groove on the conveying plate on each mould, and detection station between two moulds, detection station is equipped with camera mechanism, each camera mechanism corresponds the locating groove on the conveying plate on each camera mechanism, so that blank realizes the alternation of cold heading and detection, i.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing equipment technology, and more specifically relates to a multi-station cold heading device. Background Technology

[0002] Most cold heading devices for screws, bolts, and bolts currently employ multi-station operation to gradually shape the blank, preventing cracking during cold heading and ensuring the quality of cold heading.

[0003] Currently, after the billet is cold-forged in a mold, it is ejected by an internal ejector pin. During ejection, it is clamped by a conversion clamp and transferred to a lower station, realizing continuous operation and processing of the billet in multiple stations.

[0004] However, there is a problem with this multi-station cold heading device: if the billet has quality problems, and cracks occur after the billet is cold-headed in one mold, if it is directly sent to the next mold for cold heading, the billet will likely crack and damage the mold and the stamping head, and the cost of repairing the mold and the stamping head is very high. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-station cold heading device that can alternate between billet cold heading and inspection. That is, an inspection is performed after each cold heading. If cracking is detected, the equipment is stopped to prevent the cracked billet from re-entering the mold and damaging it.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-station cold heading device, comprising a fixed die, a punch die, and an intermittent conveying mechanism located between the fixed die and the punch die on a frame. The intermittent conveying mechanism includes a conveyor belt, several conveyor plates on the conveyor belt, a lifting bracket, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are rotatably connected to the lifting bracket. The conveyor belt is wound around the drive wheel and the driven wheel. A fixed block is provided on the conveyor plate, and a positioning groove is provided on the fixed block. A lifting drive mechanism is connected to the lifting bracket, and a rotation drive mechanism is connected to the drive wheel. Several molds are provided on the fixed die to form several cold heading stations. Each mold corresponds to a positioning groove on a conveyor plate, and the area between two molds is a detection station. A camera mechanism is provided on the detection station, and each camera mechanism corresponds to a positioning groove on a conveyor plate.

[0007] Furthermore, the detection mechanism includes an adjustable bracket, a detection camera located on the adjustable bracket, and an elastic flip plate located on the adjustable bracket. The end face of the elastic flip plate facing the positioning groove can elastically contact the tail end of the blank in the positioning groove.

[0008] Furthermore, the adjustable bracket includes several connecting rods that are hinged to each other, and fastening bolts are provided on the hinge axis of the connecting rods.

[0009] Furthermore, the lifting bracket is provided with several support wheels that come into contact with the conveyor belt.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting a conveyor belt between the fixed mold and the punching mold, the blank can be alternated between cold heading and inspection, that is, an inspection is carried out after each cold heading. If cracking is found during inspection, the equipment is stopped to prevent the cracked blank from re-entering the mold and damaging the mold. Attached Figure Description

[0011] Figure 1 This is a top view of the multi-station cold heading device of this utility model.

[0012] Figure 2 This is a schematic diagram of the camera mechanism in the multi-station cold heading device of this utility model;

[0013] Figure 3 This utility model relates to a multi-station cold heading device.

[0014] Reference numerals: 1. Fixed mold; 2. Punch mold; 3. Conveyor belt; 4. Drive wheel; 5. Driven wheel; 6. Fixed block; 7. Positioning groove; 8. Cold heading station; 9. Inspection station; 10. Inspection camera; 11. Elastic flip plate; 12. Support wheel; 13. Conveyor plate; 14. Lifting bracket; 15. Adjustable bracket. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. They should not be construed as limiting the specific protection scope of this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0017] Reference Figures 1 to 3 The present invention will be further described below.

[0018] A multi-station cold heading device includes a fixed die, a punch die, and an intermittent conveying mechanism located between the fixed die and the punch die on a frame (not shown in the figure). The intermittent conveying mechanism includes a conveyor belt, several conveyor plates on the conveyor belt, a lifting bracket, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are rotatably connected to the lifting bracket. The conveyor belt is wound around the drive wheel and the driven wheel. A fixed block is provided on the conveyor plate, and a positioning groove is provided on the fixed block. A lifting drive mechanism (not shown in the figure) is connected to the lifting bracket. A rotation drive mechanism is connected to the drive wheel. Several molds are provided on the fixed die to form several cold heading stations. Each mold corresponds to a positioning groove on a conveyor plate, and there is a detection station between two molds. A camera mechanism is provided on the detection station, and each camera mechanism corresponds to a positioning groove on a conveyor plate.

[0019] Specifically, a push rod mechanism is provided behind the fixed mold to eject the blank inside the mold.

[0020] like Figures 1 to 3 As shown, at the start of cold heading, the round bar billet enters the mold of the first cold heading station. Then, the die moves, forming the billet for the first time within the mold. After the die moves away, the lifting bracket rises, aligning the positioning groove on the fixed block with the mold. Then, the ejector mechanism pushes the billet out of the mold and into the positioning groove. The drive wheel drives the conveyor belt to move, simultaneously moving the fixed block to the first inspection station. A camera mechanism performs visual inspection on the billet formed in the first stage. At the same time, another round bar billet enters the mold of the first cold heading station. The die moves again to align and perform cold heading. After cold heading, the billet is ejected to the second cold heading station. Within the positioning groove of the fixed plate, the drive wheel drives the conveyor belt to move, so that the first formed billet corresponds to the mold on the second cold heading station, while the other one enters the first inspection station. When the third round bar billet begins cold heading, the first billet is pushed into the mold from the positioning groove by the punch. After the end of the billet enters the mold, the lifting bracket descends, allowing the punch to completely push the billet into the mold and perform cold heading. The above actions are repeated to achieve alternation between cold heading and inspection of the billet. That is, an inspection is performed after each cold heading. If cracking is found during inspection, the equipment is stopped to prevent the cracked billet from re-entering the mold and damaging it.

[0021] like Figure 2 As shown in the example, the preferred embodiment of the detection mechanism includes an adjustable bracket, a detection camera located on the adjustable bracket, and an elastic flip plate located on the adjustable bracket. The end face of the elastic flip plate facing the positioning groove can elastically contact the tail end of the blank in the positioning groove. The detection position of the detection camera can be adjusted by the adjustable bracket to ensure that the entire blank can be detected.

[0022] like Figure 2 As shown, specifically, when the billet enters the detection range from the left side and comes into contact with the elastic reversing plate, the detection camera detects the front side of the billet. When the billet passes the elastic reversing plate in the middle, the friction between the elastic reversing plate and the billet causes the billet to flip 180 degrees, and then the detection camera detects the back side of the billet, thus achieving all-round detection of the billet.

[0023] Specifically, the detection range of the detection camera is a cone-shaped area, and it can cover both sides of the conveyor plate located at the detection station.

[0024] like Figure 2 As shown in the example, the adjustable bracket preferably includes several connecting rods that are hinged to each other, and fastening bolts are provided on the hinge shafts of the connecting rods. That is, loosening the fastening bolts allows the connecting rods to rotate relative to each other, and tightening them fixes the relative positions of the connecting rods.

[0025] like Figure 3 As shown in the example, in this preferred embodiment, the lifting support is provided with a plurality of support wheels that contact the conveyor belt for supporting the conveyor belt.

[0026] Specifically, support wheels are installed on the lifting bracket at the corresponding cold heading and inspection stations.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-station cold heading device, characterized in that: The system includes a fixed die and a punch die located on a frame, and an intermittent conveying mechanism located between the fixed die and the punch die. The intermittent conveying mechanism includes a conveyor belt, several conveyor plates on the conveyor belt, a lifting bracket, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are rotatably connected to the lifting bracket. The conveyor belt is wound around the drive wheel and the driven wheel. A fixed block is provided on the conveyor plate, and a positioning groove is provided on the fixed block. A lifting drive mechanism is connected to the lifting bracket, and a rotation drive mechanism is connected to the drive wheel. Several molds are provided on the fixed die to form several cold heading stations. Each mold corresponds to a positioning groove on a conveyor plate, and there is a detection station between two molds. A camera mechanism is provided at the detection station, and each camera mechanism corresponds to a positioning groove on a conveyor plate.

2. The multi-station cold heading device according to claim 1, characterized in that: The camera mechanism includes an adjustable bracket, a detection camera located on the adjustable bracket, and an elastic flip plate located on the adjustable bracket. The end face of the elastic flip plate facing the positioning groove can elastically contact the tail end of the blank in the positioning groove.

3. The multi-station cold heading device according to claim 2, characterized in that: The adjustable bracket includes several connecting rods that are hinged to each other, and fastening bolts are provided on the hinge shafts of the connecting rods.

4. The multi-station cold heading device according to claim 1, characterized in that: The lifting support is equipped with several support wheels that come into contact with the conveyor belt.

Images