Cold heading die for automobile sealing nut

By introducing a cleaning mechanism of electromagnets and photoelectric sensors into the cold heading mold of automobile seal nuts, the metal waste is automatically cleaned, which solves the problems of traditional cleaning methods, improves processing accuracy and efficiency, extends the mold life, and reduces maintenance costs.

CN223185444UActive Publication Date: 2025-08-05BUDDY AUTOMOTIVE PARTS CHANGZHOU CO LTD
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Patent Information

Application Number
CN202422191359.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-07
Publication Date
2025-08-05
Estimated Expiration
2034-09-07

AI Technical Summary

Technical Problem

During the processing process of existing automotive seal nut cold heading molds, metal debris and waste are difficult to clean, affecting the processing accuracy, mold service life, production efficiency and maintenance costs.

Method used

A cleaning mechanism composed of electromagnets and photoelectric sensors is used to automatically adsorb and clean metal waste, and the processed nuts are stored centrally through the collection mechanism, combining the limiting plate and cylinder drive system to ensure processing accuracy and efficiency.

Benefits of technology

It realizes automatic cleaning of metal waste, improves processing accuracy and product quality, reduces mold scratches and wear, extends service life, and reduces maintenance costs and frequency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cold heading die for an automobile sealing nut, and relates to the field of nut machining equipment. The cold heading device comprises the cold heading assembly, the cold heading assembly comprises the base, the gear clamp, the discharging opening, the limiting plate, the air cylinder and the push plate, the cleaning mechanism is arranged, an electromagnet generates magnetic force after being powered on, metal scraps on a gear clamp installation base are effectively adsorbed, and the problem that cleaning is difficult in a traditional scraping mode is solved; the circuit line provides stable power supply for the electromagnet, normal work of the electromagnet is ensured, the photoelectric sensor intelligently senses the position of the air cylinder, the electromagnet is started when the air cylinder is close to the gear clamp, power is cut off when the air cylinder is away from the gear clamp, and automatic cleaning is achieved. The anti-sticking device prevents the anti-sticking device from being attached to the die again or influencing the working environment, reduces the scratch and abrasion of the die, prolongs the service life, avoids the phenomenon of die blockage or jamming, and reduces the maintenance cost.
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Description

Technical Field

[0001] The utility model relates to the field of nut processing equipment, in particular to a cold heading die for automobile sealing nuts. Background Art

[0002] Cold heading dies for automotive sealing nuts are highly specialized tools specifically designed to manufacture automotive sealing nuts to exacting standards and specifications. These dies utilize cold heading technology, a highly efficient machining process that uses precisely designed dies at room temperature to apply high pressure to the metal material, causing it to plastically deform and ultimately achieve the desired shape and size.

[0003] There are various types of existing cold heading dies for automotive sealing nuts. One type of cold heading process is achieved through the coordinated efforts of components such as a base, a gear fixture, a blanking port, a limit plate, a cylinder and a push plate. However, during the processing, due to the plastic deformation of the metal material, metal wire or waste debris will be generated. These debris are easily attached to the mounting seat of the gear fixture. Due to the complex structure of the mounting seat, traditional scraping methods are difficult to effectively clean. After accumulating for a long time, these debris and waste may affect the processing accuracy, resulting in inaccurate nut size and irregular shape, thereby affecting the sealing performance and assembly effect of the product; at the same time, they may also scratch or wear the mold surface, shortening the mold service life; they may also cause the mold to be blocked or stuck, reducing production efficiency, and because it is difficult to clean, the frequency of mold replacement or repair may increase, thereby increasing maintenance costs. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a cold heading die for automobile sealing nuts to solve the technical problem that metal debris and waste are difficult to clean, thereby affecting processing accuracy, die service life, production efficiency and maintenance cost.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a cold heading die for automobile sealing nuts, comprising a cold heading assembly, wherein the cold heading assembly comprises a base, a gear fixture, a blanking port, a limit plate, a cylinder, and a push plate, wherein three cold heading rods are provided on one side of the push plate, and a cleaning mechanism is provided on one side of the three cold heading rods, wherein the cleaning mechanism comprises an electromagnet, wherein a circuit line is provided on the top of the electromagnet, wherein the circuit line is used to power the electromagnet, and a photoelectric sensor is provided below the electromagnet;

[0006] A waste box is provided on one side of the discharge port, and the waste box is used for collecting waste.

[0007] By adopting the above technical solution, automobile sealing nuts can be produced efficiently, and waste can be automatically processed through a cleaning mechanism to keep the working environment clean and tidy.

[0008] Furthermore, the photoelectric sensor is used to drive the electromagnet. When the photoelectric sensor approaches the gear fixture through the cylinder, the electromagnet can be effectively started. When the photoelectric sensor is away from one end of the gear fixture, the electromagnet will be powered off.

[0009] By adopting the above technical solution, the photoelectric sensor is used to drive the electromagnet. When the cylinder approaches the gear fixture, the electromagnet is activated and when it moves away, the power is cut off.

[0010] Furthermore, the electromagnet can effectively absorb the metal waste on the gear fixture fixing seat after being energized, and can effectively cause the metal waste to fall into the waste box after being de-energized.

[0011] By adopting the above technical solution, the problem that the traditional scraping method is difficult to clean is effectively solved, the processing accuracy and product quality are improved, and the scratches and wear of the mold are reduced.

[0012] Furthermore, a collecting mechanism is provided below the discharge port, and the collecting mechanism includes a collecting box, and a feeding port is provided on the top of the collecting box.

[0013] By adopting the above technical solution, the processed nuts can be stored centrally, which helps to keep the work area clean and tidy.

[0014] Furthermore, a handle is provided on the outer surface of the collection box, and four universal wheels are provided on the bottom of the collection box.

[0015] By adopting the above technical solution, it is convenient for workers to move and dump the collection box easily, thereby improving work efficiency.

[0016] Furthermore, the inner side of the gear fixture passes through the maintenance box and is connected to the output end of the motor. A limit plate is provided on the outer surface of the gear fixture, and the limit plate is used to limit the nut that needs to be processed for the tooth gap in the gear fixture.

[0017] By adopting the above technical solution, the stable operation and precise processing of the gear fixture are ensured, while it is easy to inspect and maintain.

[0018] Furthermore, three cold heading holes are opened on the outer surface of the limit plate, and the three cold heading holes are respectively opposite to the tooth gaps of the gear fixture, and the cold heading holes are opposite to three cold heading rods, and the cold heading rods are plugged into the cold heading holes.

[0019] By adopting the above technical solution, the precise alignment of the cold heading rod and the gear fixture is ensured, thereby improving the processing accuracy and product quality.

[0020] Furthermore, a push plate is provided on the side opposite to the limit plate, and a cylinder is provided on the side of the push plate away from the cold heading rod, and the cylinder is used to drive the push plate.

[0021] By adopting the above technical solution, a stable driving force is provided, which ensures the smooth progress of the cold heading process and improves the production efficiency.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. The utility model sets a cleaning mechanism, in which the electromagnet generates magnetic force after being energized, effectively adsorbing the metal waste on the gear fixture mounting seat, solving the problem that the traditional scraping method is difficult to clean. The circuit line provides a stable power supply for the electromagnet to ensure its normal operation. The photoelectric sensor intelligently senses the position of the cylinder, and starts the electromagnet when the cylinder is close to the gear fixture, and cuts off the power when it is far away, thereby realizing automatic cleaning. The waste box is responsible for collecting the metal waste adsorbed and dropped by the electromagnet to prevent it from re-attaching to the mold or affecting the working environment. In summary, the design of these structures effectively solves the problems faced by the existing automotive sealing nut cold heading mold, realizes the automatic cleaning of metal waste, improves processing accuracy and product quality, reduces scratches and wear of the mold, extends service life, avoids mold blockage or jamming, improves production efficiency, reduces the frequency of mold replacement or repair, and reduces maintenance costs.

[0024] 2. The utility model provides a collecting mechanism in which the feed port is directly below the discharge port. This design allows the processed nuts to fall smoothly into the collection box, providing a dedicated storage space that helps keep the work area tidy and avoids the scattering and loss of nuts. In addition, the collection box has been further optimized in design. Specifically, a handle is provided on the outer surface of the collection box to facilitate easy moving by the staff. Both moving the position and dumping the nuts are more convenient and quick. At the same time, four universal wheels are installed at the bottom of the collection box, which provides excellent flexibility and allows the collection box to be easily moved in the work area. Both adjusting the position and cleaning and maintenance become simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 This is a bottom-up three-dimensional structural diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of a side-view cross-sectional three-dimensional structure of the present utility model;

[0028] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A.

[0029] In the figure: 1. Cold heading assembly; 101. Base; 102. Gear fixture; 103. Limiting plate; 104. Cold heading socket; 105. Feeding port; 106. Cylinder; 107. Push plate; 108. Cold heading rod; 2. Collection mechanism; 201. Collection box; 202. Feeding port; 203. Handle; 204. Universal wheel; 3. Cleaning mechanism; 301. Electromagnet; 302. Circuit line; 303. Photoelectric sensor; 304. Waste box. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following describes an embodiment of the present invention based on its overall structure.

[0034] Example 1:

[0035] Cold heading dies for automotive sealing nuts, such as Figures 1-4As shown, it includes a cold heading component 1, which includes a base 101, a gear clamp 102, a feed port 105, a limit plate 103, a cylinder 106 and a push plate 107. Three cold heading rods 108 are provided on one side of the push plate 107, and a cleaning mechanism 3 is provided on one side of the three cold heading rods 108. The cleaning mechanism 3 includes an electromagnet 301, a circuit line 302 is provided on the top of the electromagnet 301, and the circuit line 302 is used to power the electromagnet 301. A photoelectric sensor 303 is provided below the electromagnet 301; a waste box 304 is provided on one side of the feed port 105, and the waste box 304 is used to collect waste, which can efficiently produce automotive sealing nuts. At the same time, by equipping the cleaning mechanism, the automatic processing of waste is realized, which helps to keep the working environment clean.

[0036] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The photoelectric sensor 303 is used to drive the electromagnet 301. When the photoelectric sensor 303 approaches the gear fixture 102 through the cylinder 106, the electromagnet 301 can be effectively started. When the photoelectric sensor 303 is away from one end of the gear fixture 102, the electromagnet 301 will be powered off. When the cylinder 106 drives the push plate 107 and the cold heading rod 108 for processing, the photoelectric sensor 303 can accurately sense and start the electromagnet 301 to absorb the metal scrap on the gear fixture 102. After the processing is completed, the cylinder 106 is moved away, and the photoelectric sensor 303 prompts the electromagnet 301 to be powered off, and the scrap automatically falls into the scrap box 304, thereby improving production efficiency and reducing manual intervention.

[0037] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 When powered on, the electromagnet 301 can effectively absorb the metal waste on the fixed seat of the gear fixture 102. When powered off, the electromagnet 301 can effectively cause the metal waste to fall into the waste box 304, solving the problem that the traditional scraping method is difficult to clean the metal waste on the gear fixture 102. The power on and off of the electromagnet 301 is controlled by the position of the photoelectric sensor 303 and the cylinder 106, realizing the automatic adsorption and dropping of the waste, improving the processing accuracy and product quality, and reducing the scratches and wear of the mold.

[0038] Example 2:

[0039] See Figure 1 、 Figure 2 A collecting mechanism 2 is provided below the discharge port 105, and the collecting mechanism 2 includes a collecting box 201. A feeding port 202 is provided on the top of the collecting box 201, providing a special collecting space for centrally storing the processed nuts, which helps to keep the working area clean and tidy, and facilitates subsequent sorting and packaging.

[0040] See Figure 1 、 Figure 2 The outer surface of the collection box 201 is provided with a handle 203, and the bottom of the collection box 201 is provided with four universal wheels 204. The above arrangement makes it easy for the staff to move and dump the collection box 201, thereby improving work efficiency. The design of the handle 203 makes transportation more convenient, while the universal wheels 204 provide flexible mobility.

[0041] See Figure 1 、 Figure 2 The inner side of the gear fixture 102 passes through the inspection box and is connected to the output end of the motor. A limit plate 103 is provided on the outer surface of the gear fixture 102. The limit plate 103 is used to limit the nut that needs to be processed in the tooth gap in the gear fixture 102. This design ensures the stable operation and precise processing of the gear fixture 102. The design of the limit plate 103 enables the nut to be processed to be accurately positioned in the tooth gap of the gear fixture 102, thereby ensuring the processing quality. At the same time, the design of passing through the inspection box facilitates the inspection and maintenance of the gear fixture 102.

[0042] See Figure 1 、 Figure 2 Three cold heading holes 104 are provided on the outer surface of the limit plate 103, and the three cold heading holes 104 are respectively positioned relative to the tooth gaps of the gear fixture 102, and the cold heading holes 104 are relative to the three cold heading rods 108, and the cold heading rods 108 are plugged into the cold heading holes 104. This setting ensures the precise alignment of the cold heading rods 108 and the gear fixture 102. The design of the cold heading holes 104 enables the cold heading rods 108 to be accurately inserted and correspond to the tooth gaps of the gear fixture 102, thereby improving the processing accuracy and product quality.

[0043] See Figure 1 、 Figure 2 A push plate 107 is provided on the opposite side of the limit plate 103, and a cylinder 106 is provided on the side of the push plate 107 away from the cold heading rod 108. The cylinder 106 is used to drive the push plate 107. This arrangement provides a stable driving force to ensure the smooth progress of the cold heading process. The cylinder 106 drives the push plate 107 and the cold heading rod 108 to perform reciprocating motion, thereby realizing precise cold heading processing of metal materials and improving production efficiency.

[0044] The implementation principle of the present invention is as follows: first, the metal material to be processed needs to be placed in the gear fixture 102 and limited by the limit plate 103 to ensure that the metal material is stable and in an accurate position. The motor is started to make the gear fixture 102 start to rotate and prepare for cold heading processing. At this time, the cylinder 106 drives the push plate 107 to move forward, and the cold heading rod 108 on the push plate 107 is then inserted into the cold heading socket 104 on the limit plate 103 and contacts the metal material in the gear fixture 102. After the processing is completed, the cylinder 106 drives the push plate 107 and the cold heading rod 108 to retreat and return to the initial position.

[0045] Subsequently, during the cold heading process, the metal scraps generated will adhere to the mounting seat of the gear fixture 102. When the cylinder 106 drives the push plate 107 to approach the gear fixture 102, the photoelectric sensor 303 senses this action and activates the electromagnet 301. When the electromagnet 301 is energized, it generates magnetic force, effectively adsorbing the metal scraps on the mounting seat of the gear fixture 102. When the cylinder 106 drives the push plate 107 to move a certain distance away from the gear fixture 102, the photoelectric sensor 303 prompts the electromagnet 301 to be de-energized. After the electromagnet 301 is de-energized, the magnetic force is lost, and the metal scraps fall into the scrap bin 304, completing the scrap cleaning.

[0046] The processed nuts fall into the collection mechanism 2 below through the discharge port 105. A feed port 202 is provided at the top of the collection box 201 of the collection mechanism 2 to ensure that the nuts can fall in smoothly. A handle 203 is provided on the outer surface of the collection box 201, and four universal wheels 204 are provided at the bottom to facilitate the staff to move and dump the nuts.

[0047] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. Cold heading die for automobile sealing nuts, characterized by: The invention comprises a cold heading assembly (1), wherein the cold heading assembly (1) comprises a base (101), a gear fixture (102), a feed port (105), a limit plate (103), a cylinder (106) and a push plate (107); three cold heading rods (108) are provided on one side of the push plate (107); a cleaning mechanism (3) is provided on one side of the three cold heading rods (108); the cleaning mechanism (3) comprises an electromagnet (301); a circuit line (302) is provided on the top of the electromagnet (301); the circuit line (302) is used to supply power to the electromagnet (301); and a photoelectric sensor (303) is provided below the electromagnet (301); A waste box (304) is provided on one side of the discharge port (105), and the waste box (304) is used to collect waste.

2. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: The photoelectric sensor (303) is used to drive the electromagnet (301). When the photoelectric sensor (303) approaches the gear fixture (102) through the cylinder (106), the electromagnet (301) can be effectively started. When the photoelectric sensor (303) is away from one end of the gear fixture (102), the electromagnet (301) is powered off.

3. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: The electromagnet (301) can effectively absorb the metal waste on the fixing seat of the gear fixture (102) after being powered on, and can effectively cause the metal waste to fall into the waste box (304) after being powered off.

4. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: A collecting mechanism (2) is provided below the discharge port (105), and the collecting mechanism (2) comprises a collecting box (201). A feeding port (202) is provided at the top of the collecting box (201).

5. The cold heading die for automobile sealing nuts according to claim 4, characterized in that: The outer surface of the collection box (201) is provided with a handle (203), and the bottom of the collection box (201) is provided with four universal wheels (204).

6. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: The inner side of the gear fixture (102) passes through the maintenance box and is connected to the output end of the motor. A limiting plate (103) is provided on the outer surface of the gear fixture (102). The limiting plate (103) is used to limit a nut that needs to be processed for tooth clearance in the gear fixture (102).

7. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: The outer surface of the limiting plate (103) is provided with three cold heading holes (104), the three cold heading holes (104) are respectively positioned relative to the tooth gaps of the gear fixture (102), and the cold heading holes (104) are positioned relative to three cold heading rods (108), and the cold heading rods (108) are plugged into the cold heading holes (104).

8. The cold heading die for automobile sealing nuts according to claim 1, characterized in that: A push plate (107) is provided on the opposite side of the limiting plate (103), and a cylinder (106) is provided on the side of the push plate (107) away from the cold heading rod (108). The cylinder (106) is used to drive the push plate (107).