Welding wheel structure of resistance welding machine

Abstract

The utility model discloses a resistance welding machine welding wheel structure which comprises a main shaft, a welding wheel and a pressing wheel, the welding wheel and the pressing wheel are installed on the main shaft at the same time, the vertical side face of the welding wheel abuts against the vertical side face of the pressing wheel, the centers of the welding wheel and the pressing wheel and the axis of the main shaft are located on the same horizontal line, and the diameter of the pressing wheel is the same as the minimum limit diameter of the welding wheel. By arranging the pressing wheel with the diameter the same as the minimum limit diameter of the welding wheel, a welder can take the pressing wheel as a reference when finishing the welding wheel, and the situation that the welding wheel is scrapped due to excessive finishing is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of resistance welding machines, and in particular to a welding wheel structure of a resistance welding machine. Background Art

[0002] The resistance welding machine welding wheel is used for straight seam welding. During the welding process, welding slag often adheres to the surface of the welding wheel, making the outer surface of the welding wheel uneven. This will cause problems such as weld burrs and other welding defects. To solve this problem, a scraper is used to synchronously trim the welding wheel surface during the production process to keep the welding wheel surface smooth and flat.

[0003] When the outer diameter of the welding wheel is smaller than the limit value, it needs to be replaced. However, when manually trimming the welding wheel with a scraper, the degree of adjustment is often uncertain. When the outer diameter of the welding wheel is not close to the limit value, it is easy to trim too much, causing the outer diameter of the welding wheel to be smaller than the limit value, thereby causing the welding wheel to be scrapped. Utility Model Content

[0004] In order to overcome the above technical problems, the present application provides a resistance welding machine welding wheel structure.

[0005] The present application provides a resistance welding machine welding wheel structure adopting the following technical solutions:

[0006] A resistance welding machine welding wheel structure includes a main shaft and a welding wheel and a pressure wheel simultaneously mounted on the main shaft, the vertical side of the welding wheel abuts the vertical side of the pressure wheel, the centers of the welding wheel, the pressure wheel and the axis of the main shaft are located on the same horizontal line, and the diameter of the pressure wheel is the same as the minimum limit diameter of the welding wheel.

[0007] By adopting the above technical solution, the present application sets a pressure wheel as an intuitive reference for the welding wheel. The operator can accurately control the trimming depth of the welding wheel by observing the position of the pressure wheel, thereby avoiding the risk of damage to the welding wheel due to excessive trimming.

[0008] Optionally, the pressure wheel is located on the side of the welding wheel away from the main shaft, a threaded connecting rod is threadedly connected to the axis of the main shaft, a connecting nut is threadedly connected to the threaded connecting rod, and the pressure wheel and welding wheel are connected to the main shaft through the threaded connecting rod and the connecting nut.

[0009] By adopting the above technical solution, the pressing wheel and the welding wheel are connected to the main shaft through the threaded connecting rod and the connecting nut, which makes it easy to replace the pressing wheel.

[0010] Optionally, a connecting shaft is protruding from the center of one side of the main shaft close to the welding wheel, the welding wheel is clamped with the connecting shaft and abuts against the main shaft at the same time, the pressure wheel abuts against the connecting shaft and the welding wheel at the same time, the threaded connecting rod is threadedly connected to the connecting shaft and the main shaft at the same time, a first positioning hole is opened downward at the top of the connecting shaft, a second positioning hole connected to the first positioning hole is provided on the threaded connecting rod, and positioning pins are inserted into both the first positioning hole and the second positioning hole.

[0011] By adopting the above technical solution, the positioning pin prevents the threaded connecting rod from loosening or rotating during operation, thereby ensuring that the welding wheel is fixed in position.

[0012] Optionally, a first positioning threaded hole is provided on the welding wheel, and a second positioning threaded hole is provided on the side of the main shaft close to the welding wheel. The first positioning threaded hole is connected to the second positioning threaded hole, and the first positioning threaded hole and the second positioning threaded hole are both connected to a positioning screw.

[0013] By adopting the above technical solution, when the welding wheel rotates at high speed or is subjected to external impact, the welding wheel may rotate on the main shaft, affecting its operation. Therefore, through the simultaneous action of the positioning screw and the threaded connecting rod, the welding wheel can always maintain an unchanged relative position with the main shaft. This design greatly improves the rigidity and durability of the entire welding wheel structure.

[0014] Optionally, the first positioning threaded holes are provided in plurality, and the second positioning threaded holes are provided in plurality, and the first positioning threaded holes correspond to the second positioning threaded holes in one-to-one correspondence.

[0015] By adopting the above technical solution, the positioning screw is easily broken by external force when the welding wheel rotates at high speed multiple times or is subjected to external force. On the one hand, the stability of the welding wheel can be maintained by setting multiple positioning screws. On the other hand, only one positioning screw can be set. When the positioning screw breaks in the first threaded hole and the second threaded hole, there is no need to remove the broken positioning screw. A new positioning screw can be directly threaded into the other first positioning threaded hole and the second positioning threaded hole, thereby shortening the fault handling time and reducing the impact on production.

[0016] Optionally, the number of the first positioning threaded holes is four and they are evenly distributed along the center of the welding wheel.

[0017] Optionally, a locking threaded hole is provided on the connecting nut, a locking screw is threadedly connected to the locking threaded hole, and the locking screw presses against the pressure wheel.

[0018] Optionally, the locking threaded holes and locking screws are provided in plurality and correspond one to one.

[0019] By adopting the above technical solution, the locking screw further compresses the pressing wheel and the welding wheel, thereby increasing the stability of the welding wheel.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The diameter of the pressure wheel in this application is set to be the same as the minimum limit diameter of the welding wheel, which provides a clear visual reference for the operator and further ensures the accuracy of the trimming process. The operator can precisely control the trimming depth of the welding wheel by observing the position of the pressure wheel, thereby avoiding the risk of damage to the welding wheel due to over-trimming;

[0022] 2. By using multiple positioning mechanisms such as positioning pins and positioning screws, the present invention achieves a stable and precise connection between the welding wheel and the main shaft, thereby improving the stability and service life of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram showing a welding wheel according to an embodiment of the present application;

[0025] Figure 3 It is a schematic structural diagram showing the pressure wheel according to an embodiment of the present application.

[0026] In the figure, 1, main shaft; 11, connecting shaft; 111, first positioning hole; 12, second positioning threaded hole; 2, welding wheel; 21, first positioning threaded hole; 3, pressure wheel; 4, threaded connecting rod; 41, connecting nut; 411, locking threaded hole; 412, locking screw; 42, second positioning hole; 5, positioning pin; 6, positioning screw. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] The embodiment discloses a welding wheel structure of a resistance welding machine.

[0029] like Figure 1-3 As shown, a resistance welding machine welding wheel structure includes a main shaft 1, a welding wheel 2, and a pressure wheel 3. The welding wheel 2 and the pressure wheel 3 are simultaneously mounted on the main shaft 1, and the vertical side of the welding wheel 2 is in close contact with the vertical side of the pressure wheel 3. The welding wheel 2 is in close contact with the main shaft 1. This arrangement ensures the synchronous rotation of the welding wheel 2 and the pressure wheel 3 on the main shaft 1. At the same time, the centers of the welding wheel 2 and the pressure wheel 3 are located on the same horizontal line as the axis of the main shaft 1, thus ensuring the stability and balance of the rotation. The diameter of the pressure wheel 3 is specifically designed to be the same as the minimum limit diameter of the welding wheel 2. This provides an intuitive reference for the operator when trimming the welding wheel 2, preventing the welding wheel 2 from being scrapped due to excessive trimming.

[0030] During the operation of the resistance welding machine, welding slag will inevitably adhere to the welding wheel 2, affecting the welding quality. At this time, the operator needs to use a scraper to trim the surface of the welding wheel 2. By setting a pressure wheel 3 with the same minimum limit diameter as the welding wheel 2, the pressure wheel 3 provides a clear reference point. The operator can easily observe and judge when to stop trimming the welding wheel 2, thereby effectively preventing damage to the welding wheel 2 due to excessive trimming. This design not only extends the service life of the welding wheel 2, but also significantly improves the stability and consistency of welding quality.

[0031] like Figure 1 As shown, a threaded connecting rod 4 is threadedly connected to the axis of the main shaft 1, and a connecting nut 41 is threadedly connected to the threaded connecting rod 4. In this way, the pressure wheel 3 and the welding wheel 2 are firmly connected to the main shaft 1, ensuring that the two can rotate synchronously and stably.

[0032] like Figure 1 As shown, a connecting shaft 11 protrudes from the center of one side of the main shaft 1 near the welding wheel 2. The welding wheel 2 is engaged with this connecting shaft 11 and simultaneously abuts against the main shaft 1. The pressure wheel 3 abuts against both the connecting shaft 11 and the welding wheel 2, ensuring a tight fit between the three. The threaded connecting rod 4 is not only threadedly connected to the connecting shaft 11, but also to the main shaft 1, further enhancing the stability of the structure. To prevent the threaded connecting rod 4 from loosening or rotating during operation, a first positioning hole 111 is downwardly defined at the top of the connecting shaft 11, and a second positioning hole 42 is correspondingly provided on the threaded connecting rod 4. A positioning pin 5 is inserted into both positioning holes.

[0033] like Figure 1 and Figure 2 As shown, a first positioning threaded hole 21 is provided on the welding wheel 2, and a second positioning threaded hole 12 is opened on the side of the main shaft 1 close to the welding wheel 2. The first positioning threaded hole 21 is connected to the second positioning threaded hole 12, and the first positioning threaded hole 21 and the second positioning threaded hole 12 are simultaneously connected with a positioning screw 6. The first positioning threaded hole 21 is set to be multiple, and the second positioning threaded hole 12 is set to be multiple. The first positioning threaded hole 21 corresponds to the second positioning threaded hole 12 one by one. In the present application, four first positioning threaded holes 21 are set, which are evenly distributed along the center of the welding wheel 2.

[0034] When the welding wheel 2 rotates at high speed or is subjected to external impact, the welding wheel 2 may rotate on the main shaft 1, affecting its operation. Therefore, through the simultaneous action of the positioning screw 6 and the threaded connecting rod 4, the welding wheel 2 can always maintain its relative position with the main shaft 1 unchanged. This design greatly improves the rigidity and durability of the entire welding wheel 2 structure. However, the positioning screw 6 is easily broken by external force impact when the welding wheel 2 rotates at high speed multiple times or is subjected to external force. On the one hand, the stability of the welding wheel 2 can be maintained by setting multiple positioning screws 6. On the other hand, only one positioning screw 6 can be set. When the positioning screw 6 breaks in the first positioning threaded hole 21 and the second positioning threaded hole 12, there is no need to remove the broken positioning screw 6. The new positioning screw 6 can be directly threaded into the other first positioning threaded hole 21 and the second positioning threaded hole 12, thereby shortening the fault handling time and reducing the impact on production.

[0035] like Figure 1 As shown, a plurality of locking threaded holes 411 are provided on the connecting nut 41. In this application, three locking threaded holes 411 are set. The inner thread of the locking threaded hole 411 is connected with a locking screw 412. The locking screw 412 presses the pressure wheel 3. The locking screw 412 further presses the pressure wheel 3 and the welding wheel 2 to increase the stability of the welding wheel 2.

[0036] The implementation principle of the welding wheel structure of a resistance welding machine in an embodiment of the present application is: when in use, the threaded connecting rod 4 is threadedly connected to the connecting shaft 11 and the main shaft 1, the positioning pin 5 is inserted into the first positioning hole 111 and the second positioning hole 42, the welding wheel 2 is sleeved on the connecting shaft 11, and the positioning screw 6 is threadedly connected to the first positioning threaded hole 21 and the second positioning threaded hole 12 at the same time, the pressure wheel 3 is sleeved on the threaded connecting rod 4, and the connecting nut 41 is threadedly connected to the threaded connecting rod 4. After tightening, the locking screw 412 is screwed into the locking threaded hole 411 for further locking.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A resistance welding machine welding wheel structure, characterized in that: The invention comprises a main shaft (1) and a welding wheel (2) and a pressure wheel (3) which are simultaneously mounted on the main shaft (1); the vertical side surface of the welding wheel (2) abuts against the vertical side surface of the pressure wheel (3); the centers of the welding wheel (2), the pressure wheel (3) and the axis of the main shaft (1) are located on the same horizontal line; and the diameter of the pressure wheel (3) is the same as the minimum limit diameter of the welding wheel (2).

2. A resistance welding machine welding wheel structure according to claim 1, characterized in that: The pressure wheel (3) is located on a side of the welding wheel (2) away from the main shaft (1); a threaded connecting rod (4) is threadedly connected to the axis of the main shaft (1); a connecting nut (41) is threadedly connected to the threaded connecting rod (4); the pressure wheel (3) and the welding wheel (2) are connected to the main shaft (1) via the threaded connecting rod (4) and the connecting nut (41).

3. The resistance welding machine welding wheel structure according to claim 2, characterized in that: A connecting shaft (11) is protrudingly provided at the center of one side of the main shaft (1) close to the welding wheel (2); the welding wheel (2) is clamped with the connecting shaft (11) and the welding wheel (2) abuts against the main shaft (1); the pressing wheel (3) abuts against the connecting shaft (11) and the welding wheel (2); the threaded connecting rod (4) is threadedly connected to the connecting shaft (11) and the main shaft (1); a first positioning hole (111) is opened downward at the top of the connecting shaft (11); a second positioning hole (42) is provided on the threaded connecting rod (4) and is communicated with the first positioning hole (111); positioning pins (5) are inserted into both the first positioning hole (111) and the second positioning hole (42).

4. The resistance welding machine welding wheel structure according to claim 2, characterized in that: The welding wheel (2) is provided with a first positioning threaded hole (21), and the side of the main shaft (1) close to the welding wheel (2) is provided with a second positioning threaded hole (12), the first positioning threaded hole (21) is communicated with the second positioning threaded hole (12), and the first positioning threaded hole (21) and the second positioning threaded hole (12) are simultaneously connected to a positioning screw (6).

5. The resistance welding wheel structure according to claim 4, characterized in that: The first positioning threaded holes (21) are provided in plurality, and the second positioning threaded holes (12) are provided in plurality, and the first positioning threaded holes (21) correspond to the second positioning threaded holes (12) in a one-to-one manner.

6. A resistance welding machine welding wheel structure according to claim 5, characterized in that: The number of the first positioning threaded holes (21) is four and they are evenly distributed along the center of the welding wheel (2).

7. The resistance welding machine welding wheel structure according to claim 2, characterized in that: The connecting nut (41) is provided with a locking threaded hole (411), the locking threaded hole (411) is internally threadedly connected to a locking screw (412), and the locking screw (412) presses against the pressing wheel (3).

8. The resistance welding machine welding wheel structure according to claim 7, characterized in that: The locking threaded holes (411) and the locking screws (412) are provided in plurality and correspond one to one.

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