A Centering Pin

Abstract

5. The invention is a centering pin (14) in a spot welding machine comprising a lower wax holder (11), lower electrode body (12), lower electrode cap (13), upper wax holder (20), upper electrode cap (18) and upper electrode holder (19), the feature of which is the air channel (1401) that provides compressed air flow on the said centering pin (14) to prevent the formation of spatter during the welding process, conical surface 2 (1402) that allows compressed air to be transmitted from the lower electrode body (12) to the air channels (1401) on the said centering pin (14), air inlet gap (1101) to provide compressed air transmission from the said lower wax holder (11) to the air channels (1401) on the said centering pin (14), lower electrode channel (1201) to provide compressed air flow from the said lower wax holder (11) to the lower electrode cap (13), conical surface 2 from the said lower electrode body (12) (1402) is related to the conical surface 1(1301) which enables the transmission of compressed air.

Description

1 TARIFF A Centering Pin TECHNICAL AREA 5 The invention prevents spatter formation during spot welding, resulting in high-quality welds. It relates to the air-channeled centering pin that enables the operation to be performed. PREVIOUS TECHNIQUE Spot welding is one of the welding methods used in many industries today. Spot welding is the process of joining two or more metal sheets together, for example, one sheet joined with another. the bolt welding process or the welding process of the plate and nut It is resource management that is carried out. Spot welding is a welding method that uses electric current. By applying pressure and heat to the area, it causes them to weld together. The aforementioned In spot welding, unlike other welding types, an extra material is used. It allows two metals to melt and fuse together without needing any additional materials. 15 During the spot welding process of a nut, the sheet metal plate is welded to the nut. During this process, high heat is generated due to resistance, and the metal melts. Molten metal can spray onto the nut threads during the welding process, damaging the parts. It causes the formation of discharge. Spatter formation is an undesirable result in welding. Spatter formation should be avoided for 20 years. Reasons for undesirability: burrs cause irregularities on the joint surface. It can reduce the durability of the material, leading to corrosion of welded parts. This can cause damage and therefore reduce the durability of the parts. also causing irregularities and roughness between the assembled parts This results in an aesthetically unpleasant appearance. For all these reasons, see source 25. a decrease in quality and therefore a strong welding process in the source area This prevents it from being realized. Poor quality welding processes cause problems, especially in the automotive sector. It causes security problems in every area where it is used. This situation affects the customer. This leads to complaints and a loss of prestige and power in the competition. 30 2 Document number 2020 / 11687, “Part position verification method in welding systems and The application titled "welding electrode" is used during the spot welding process. At least one of the two electrodes used, preferably the hollow part to be welded, must have a 5 the electrode through which the welding will be done via at least one air channel Ensuring air is supplied to the part, the pressure of the supplied air decreases. Characterized by measuring whether the part's position is correct according to its quantity. a hollow core formed by placing two opposite surfaces of different sizes on metal workpieces; During spot welding of the part, the accuracy of the part orientation is checked. 10 It relates to a method that enables this. In conclusion, all the problems mentioned above necessitate innovation in the relevant field. It has brought it to this state. THE PURPOSE OF THE INVENTION The present invention aims to eliminate the problems mentioned above and to provide technical solutions in the relevant field. It is introduced with the aim of creating an innovation. The main purpose of the invention is to prevent burr formation during the spot welding process of nuts. The aim is to reveal the air-channeled centering pin structure that prevents air from entering. Another objective of the invention is to enable high-quality welding processes. Another purpose of the invention is to remove the molten 20 during the welding of nuts to metal sheets. The aim is to ensure workplace safety by preventing metal parts from flying out. A BRIEF DESCRIPTION OF THE INVENTION All the purposes mentioned above and those that will emerge from the detailed explanation below. The present invention, designed to achieve this, is a centering pin. The subject of the invention is the spot welding process applied to the bolt threads and the 25 where the bolt is welded. Molten metal spurts onto the sheet metal, causing burrs to form on the parts. Centering with an air channel to prevent burr formation. It is related to the pin. In a preferred configuration of the invention, the formation of burrs during the welding process To prevent this, the compressed air flow opened on the aforementioned centering pin is 30 It contains an air duct that provides airflow. 3 In another preferred configuration of the invention, the air located at the centering pin conical surface that allows compressed air to be transmitted from the lower electrode body to the channels It contains 2. 5 In another preferred configuration of the invention, air is located in the centering pin. conical surface that allows compressed air to be transmitted from the lower electrode body to the channels It contains 2. In another preferred configuration, the invention extends from the lower candle holder to the centering pin. Air inlet opening 10 to provide compressed air transmission to the opened air ducts. It includes. In another preferred configuration, the invention extends from the lower candle holder to the lower electrode cap. It includes a lower electrode channel to allow the flow of compressed air. In another preferred configuration, the invention consists of a lower electrode body, a conical surface 2' It contains a conical surface that enables the transmission of compressed air. 15 In the preferred alternative configuration of the invention, the lower electrode is positioned on the housing. Pressure exerted on the upper electrode holder and upper electrode cap during the spot welding process. the centering pin with the force and compressed air coming from the lower electrode housing It contains a compression spring that enables its positioning. In another preferred alternative configuration of the invention, the pressure applied by the upper jaw is 20 By removing the force, the centering pin moves upwards, forming a conical shape. Surface 1 and conical surface 2 fit perfectly on top of each other, allowing pressurized air to pass through. It is an obstacle. In another preferred configuration, the invention consists of conical surface 1 (1301) and conical surface 2. (1402) It is at the same angle of 45°. 25 The scope of protection for the invention is specified in the claims, and this is absolutely concise and detailed. The explanation cannot be limited to what is given for illustrative purposes. A technically expert person... the person, without deviating from the main theme of the invention, in light of what has been described above, similar It is clear that these structures can emerge. 4 BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a general view of a spot welding machine. Figure 2 shows a general view of the centering pin and the elements connected to the centering pin. 5 It has been given. Figure 3 shows a cross-sectional detail of the centering pin and the elements connected to the centering pin. The appearance is given. Figure 4 shows the detail of the centering pin and the air channels on the surface of the centering pin. The appearance is given. 10 The drawings are not intended to limit the scope of protection defined in the claims. and to interpret the scope defined in those claims, the present invention referring to these in isolation without resorting to the technical explanation in the statement. should not be included. The drawings in question clarify and define the invention. It aims to... 15 EXPLANATION OF REFERENCE NUMBERS IN THE FIGURES 1. Body 2. Lower jaw 3. Upper jaw 4. Welding transformer 20 5. Conductive busbar 6. Electrode power system 7. Leaf bar 8. Control unit 9. Printing cylinder 25 10. Water-cooled coil 11. Bottom candle holder 1101. Air intake opening 12. Lower electrode housing 1201. Lower electrode channel. 13. Lower electrode cap 5 1301. Conical surface 1 14. Centering pin 1401. Air duct 1402. Conical surface 2 15th Edition publication 10 16. Workpiece 17. Welding nut 18. Upper electrode cap 19. Upper electrode holder 20. Upper candle holder 15 21. Conditioner group 22. Compressed air inlet 23. Coolant inlet 24. Coolant outlet 25. Foot pedal 20 G. Below Y. Up DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the subject of the invention is a centering pin (14) only the subject of more To ensure a good understanding, it is explained with examples that do not create any limiting effects. 25 6 The subject of the invention is the process of spot welding to the threads of a bolt and the area where the bolt is welded. Molten metal spurts onto the sheet metal, causing burrs to form on the parts. There should be an air channel (1401) to prevent the formation of burrs. 5 It is related to the centering pin (14). Figures 2, 3 and 4 show the general view of the centering pin (14) and the elements connected to the centering pin. and detailed views are given. The lower electrode body (12) connected to the lower electrode body in the invention is given. There is a candle holder (11). The lower candle holder (11) is centered on the pin. (14) Air inlet 10 to provide pressurized air flow to the air ducts (1401) located (14). It contains the space (1101). The lower electrode is positioned between the lower candle holder (11) and the lower electrode cap (13). The body (12) is located. The lower electrode body (12) is connected to the lower electrode holder (11) lower electrode channel (1201) to provide compressed air flow to the head (13) It includes. 15 During spot welding, the upper electrode is positioned on the lower electrode body (12). pressure from the upper electrode cap (18) and the lower electrode body (12) with the holder (19) precise positioning of the centering pin (14) with the incoming compressed air There is a pressure spring (15) that provides pressure. The lower electrode 20 is positioned between the lower electrode housing (12) and the centering pin (14). There is a sub-electrode head (13). Centering in the aforementioned sub-electrode head (13) conical surface 2 (1402) on the pin and conical surface 1 (1301) having the same angle of 45° It is located. When the spot welding machine presses, the upper electrode holder (19) and the upper Pressure is applied from the electrode cap (18) to the centering pin (14). The applied pressure With force, the centering pin (14) moves downwards (G). The centering pin (14) 25 as it moves downwards, the compressed air coming from the lower electrode housing (12) The transition from conical surface 1 (1301) to conical surface 2 (1402) is made possible. Spot welding. When the pressure applied from the machine is removed, the centering pin (14) moves upwards (Y). It moves, the conical surface 1 as the centering pin moves upwards (Y). (1301) and conical surface 2 (1042) fit together perfectly, allowing the passage of compressed air. It prevents. Thanks to the conical surface 1 (1301) located in the lower electrode cap (13), the conical surface 2 (1402) transmitted compressed air to the air channels opened on the centering pin (14) (1401) reaches. Pressurized air reaches the air channels opened in the centering pin (14). 7 (1401) the burr pieces that erupt in molten form during the welding process onto the nut threads It prevents adhesion of burr particles to the nut threads. By preventing leakage, a healthy welding process is ensured, while the molten metal parts 5 Preventing splashing also ensures workplace safety. The upper candle holder (20), upper electrode holder (19) and upper electrode cap (18) are fixed point. It is the part that connects to the upper jaw (3) of the welding machine. The upper electrode cap (18) is the spot welding machine. the transmission of electric current to the welding area at a specific point during the welding process It provides. The upper electrode holder (19) is the part responsible for holding the upper electrode cap (19). 10 Welding will be performed between the centering pin (14) and the welding nut (17). The workpiece (16) is located. The welding nut (17) secures the workpiece (16). It provides. Figure 1 shows the general view of the spot welding machine. In the invention, the body (1) The element referred to is the body of the spot welding machine. Fixed spot welding 15 The parts of the machine are assembled on this body (1). Upper jaw (3), upper electrode It is the movable part where the holder (19) and the upper electrode cap (18) are located. The lower jaw (2) lower candle holder (11), lower electrode body (12), lower electrode cap (13) and centering It is the stationary part where the pin (14) is located. The source transformer (4) consists of secondary and primary copper windings and the electric current 20 It is the part that enables raising and lowering. The conductive busbar (5) is connected to the source transformer. (4) ensures that the incoming electric current is transmitted to the upper jaw (3). Electrode force system (6), upper electrode holder (19) and upper electrode cap located in the upper jaw (3) (18) ensures that the necessary force adjustments are made. The leaf bar (7) ensures that the upper jaw (3) because of its mobility, it is necessary to transmit electric current during the movement 25 It provides flexibility. The control unit (8) is used to make the parametric adjustments required for spot welding. It is part. The printing cylinder (9) attaches to the upper electrode cap (18) during the spot welding process and It is a pneumatic piston powered by compressed air that applies pressure to the upper electrode holder (19). During the spot welding process, the elements in the upper jaw (3) and lower jaw (2) are 30 Heating occurs. Water-cooled coil (10) the aforementioned lower jaw (2) and upper preventing the elements in the jaw (3) from overheating during the welding process It is a cooling system. 8 The conditioning unit (21) provides the necessary pressure for the operation of the spot welding machine. where air filtration is performed and which is ideal for spot welding machines. It is the part where the pressure is adjusted. Compressed air inlet (22), spot welding machine 5 This is the section where the compressed air hose is connected to the machine for operation. Cooling water inlet (23) to ensure cooling process in spot welding machine. This is the section where the cooling water inlet is provided. Cooling water outlet (24), spot weld This is the point where the cooling water required for the process exits after use. Foot The pedal (25) activates the spot welding machine when the welding process is desired. It is a foot-operated button that enables the source to be brought in. Press the foot pedal (25) and the source Once the process has started, the system will continue to operate automatically. The system cannot be shut down. Spot welding can be performed by pressing the foot pedal (25) as mentioned above when desired. The machine is stopped.

Claims

9 REQUESTS 1. The invention consists of a lower candle holder (11), a lower electrode housing (12), a lower electrode cap (13), and an upper 5 spot welding including candle holder (20), top electrode cap (18) and top electrode holder (19) The welding machine has a centering pin (14) and its feature is:  To prevent the formation of spatter during the welding process. compressed air is opened on the mentioned centering pin (14) Air duct (1401) that provides flow, 10  To the air channels located in the mentioned centering pin (14) (1401) transmission of compressed air from the lower electrode housing (12) providing conical surface 2 (1402),  Air released from the lower candle holder (11) to the centering pin Air inlet 15 to provide compressed air transmission to the ducts (1401) space (1101),  From the aforementioned lower candle holder (11) to the lower electrode cap (13) Lower electrode channel (1201) to provide the flow of compressed air,  From the aforementioned lower electrode body (12), to conical surface 2 (1402) Conical surface 1(1301), 20 that enables the transmission of compressed air It is characterized by its inclusion.

2. The centering pin (14) conforming to Claim 1 is characterized by its connection to the lower electrode housing (12) During the positioned spot welding process, the upper electrode holder (19) pressure force from the electrode cap (18) and from the lower electrode body Press 25 which enables the positioning of the centering pin (14) with compressed air It includes the bow (15).

3. The centering pin (14) conforming to claim 1 is characterized by the pressure applied by the upper jaw. By removing the pressure force, the centering pin (14) moves upward (Y) direction. With this, conical surface 1 (1301) and conical surface 2 (1402) overlap each other by 30 It prevents the passage of pressurized air by fitting snugly.

4. The centering pin (14) conforming to claim 1 is characterized by its connection to the aforementioned conical surface 1 (1301) and conical surface 2 (1402) are at the same angle of 45°.

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