A production line and manufacturing method

Abstract

A production line includes welding equipment, which includes a base having a first wall surface and a columnar portion protruding from the first wall surface. The welding equipment also includes a welding component capable of reciprocating in at least one direction. In the reciprocating direction of the welding component, at least a portion of the outer peripheral surface of the columnar portion is disposed opposite to the welding component. The welding equipment further includes a mounting portion connected to the base and protruding from the first wall surface. At least a portion of the mounting portion facing the welding component is made of a flexible material. This solution uses the columnar portion to mount a first mating component and the mounting portion to mount a second mating component. The flexible material of the mounting portion allows the displacement of the second mating component relative to the first mating component during welding to be buffered by the mounting portion, reducing the risk of deformation and damage to the first and / or second mating components.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment, and more particularly to a production line and a manufacturing method thereof. Background Technology

[0002] In the field of machinery and equipment, welding equipment is widely used to adapt to automated production. For example... Figure 10 As shown, during spot welding, pressure needs to be applied between the first workpiece 8 and the second workpiece 9. The pressure F poses a risk of deformation to the first workpiece 8 at the spot welding point 91 near the second workpiece 9. In addition, the pressure also poses a risk of deformation to the second workpiece 9. Summary of the Invention

[0003] This solution provides a production line including welding equipment for welding a first mating component and a second mating component. The welding equipment includes a base with a first wall surface and a columnar portion protruding from the first wall surface. The columnar portion is part of the base or fixed to the base. The welding equipment also includes a welding component capable of reciprocating in at least one direction. In the reciprocating direction of the welding component, at least a portion of the first outer peripheral surface of the columnar portion is disposed opposite to the welding component. The welding equipment also includes a mounting portion connected to the base and protruding from the first wall surface. At least a portion of the mounting portion facing the welding component is made of a flexible material. The portion of the columnar portion opposite to the welding component is made of a conductive material. A portion of the first mating component is fitted onto the columnar portion. The second mating component is confined within the mounting portion, such that at least a portion of the first mating component and the second mating component can contact each other. The contact portion between the first and second mating components is located between the columnar portion and the welding component. This solution uses a cylindrical part to install the first mating component and a mounting part to install the second mating component. The mounting part, at least the portion facing the welding component, is made of a flexible material. This allows the mounting part to buffer the displacement of the second mating component relative to the first mating component during welding, thereby reducing the risk of deformation and damage to the first and / or second mating components.

[0004] This solution also provides a manufacturing method, in which the first mating component and the second mating component are welded using the welding equipment included in the above-mentioned production line. The manufacturing method includes:

[0005] A portion of the first mating component is fitted onto the cylindrical part;

[0006] The second mating component is positioned in the mounting portion, such that at least a portion of the first mating component can contact the second mating component, and the contact portion between the first mating component and the second mating component is located between the cylindrical portion and the welding component;

[0007] The welding component is pressed down to contact the first mating component and energized.

[0008] This solution uses a cylindrical part to install the first mating component and a mounting part to install the second mating component. The mounting part, at least the portion facing the welding component, is made of a flexible material. This allows the mounting part to buffer the displacement of the second mating component relative to the first mating component during welding, thereby reducing the risk of deformation and damage to the first and / or second mating components. Attached Figure Description

[0009] Figure 1 A front view schematic diagram of one embodiment of the welding equipment of the present invention is shown;

[0010] Figure 2 It shows Figure 1 An exploded view of the welding equipment shown.

[0011] Figure 3 A three-dimensional schematic diagram of the assembly of the first mating component and the second mating component is shown;

[0012] Figure 4 It shows Figure 1 A three-dimensional schematic diagram of the welding equipment shown after the first mating component and the second mating component are installed;

[0013] Figure 5 It shows Figure 4 A top-down view;

[0014] Figure 6 It shows Figure 5 Cross-sectional view along line AA;

[0015] Figure 7 It shows Figure 6 Cross-sectional view along line BB;

[0016] Figure 8 A cross-sectional schematic diagram of another embodiment of the present invention is shown;

[0017] Figure 9 A cross-sectional schematic diagram of another embodiment of the present invention is shown;

[0018] Figure 10 A cross-sectional schematic diagram of an article being spot-welded is shown;

[0019] Figure 11 It shows Figure 4 A schematic diagram of a portion of the welding equipment and the second mating component shown;

[0020] Figure 12 A schematic diagram of yet another embodiment of the present invention is shown. Detailed Implementation

[0021] The embodiments are described in detail below with reference to the accompanying drawings.

[0022] like Figure 3 As shown, the first mating component 6 can be a valve body, and the second mating component 5 can be a mounting bracket. The first mating component 6 includes a valve body, a cavity 62 located inside the valve body, and a second outer peripheral surface 64 located outside the valve body. The second outer peripheral surface 64 can be cylindrical. The first mating component 6 also includes an opening 65 communicating with the cavity 62. The first mating component 6 can be part of a valve such as a four-way switching valve, a water valve, or a refrigerant valve. Figure 4 As shown, the second mating component 5 includes a first fixing portion 52 and a second fixing portion 59 located at both ends of the second mating component 5, and a mating portion 51 located between the first fixing portion 52 and the second fixing portion 59. The first fixing portion 52 and the second fixing portion 59 may be generally plate-shaped. Both the first mounting portion and the second mounting portion have a large mounting surface, and each mounting surface may be parallel or substantially parallel to the mating portion 51. The first fixing portion 52 and the second fixing portion 59 are used for fixing to a large flat surface inside the vehicle. Figure 3 and Figure 4 As shown, the second mating component 5 also includes a first mounting hole 57, a second mounting hole 56, and a third mounting hole 510. The first mating component 6 also includes a tube 63, which protrudes from the second outer peripheral surface 64 and is perpendicular to the axis of the second outer peripheral surface 64.

[0023] like Figure 1 and Figure 2 As shown, the production line includes welding equipment, which includes a base 2 having a first wall 21 extending vertically. The welding equipment includes a cylindrical portion 3 protruding from the first wall 21. The cylindrical portion 3 is part of the base 2. In other embodiments, the cylindrical portion 3 may be fixed to the base 2. The cylindrical portion may be cylindrical, and its axis is perpendicular or substantially perpendicular to the first wall 21. The welding equipment also includes a welding component 4 and a drive assembly (not shown). The welding component 4 is drively connected to the drive assembly and can reciprocate in at least one direction. In this embodiment, the welding component 4 is a spot welding device or a resistance welding device. At least a portion of the first outer peripheral surface 31 of the cylindrical portion 3 is correspondingly disposed with respect to the welding component 4. The welding component 4 can reciprocate in at least one direction, and in the reciprocating direction of the welding component 4, at least a portion of the first outer peripheral surface 31 of the cylindrical portion 3 is disposed opposite to the welding component 4.

[0024] like Figures 3 to 6As shown, at least a portion of the welding component 4 and the cylindrical portion 3 are made of conductive material. During spot welding, a portion of the first mating component 6 is fitted onto the cylindrical portion 3, and at least a portion of the first mating component 6 and the second mating component 5 are located between the welding component 4 and the cylindrical portion 3. The welding component 4 approaches the cylindrical portion 3 and applies a certain pressure to the second mating component 5, while simultaneously energizing the welding component 4 and the cylindrical portion 3, thereby achieving spot welding and fixing between the first mating component 6 and the second mating component 5.

[0025] like Figures 4 to 6 As shown, the first outer peripheral surface 31 of the cylindrical portion 3 has the same or approximately the same shape as the inner surface of the cavity 62 of the first mating component 6, and the first outer peripheral surface 31 of the cylindrical portion 3 can be clearance-fitted with the inner surface of the cavity of the first mating component 6. The cylindrical portion 3 enables the positioning of the first mating component 6 in a direction parallel to the first wall surface 21. During spot welding, the welding component 4 applies a certain pressure to the second mating component 5, which is transmitted to the valve body 6 through the welding protrusion 55 of the second mating component 5, making the first mating component 6 at the point of contact with the welding protrusion 55 risk protruding into the cavity 62. The cylindrical portion 3 located in the cavity 62 of the first mating component 6 can generate a supporting force on the inner surface of the cavity, reducing the risk of deformation of the first mating component 6.

[0026] like Figure 7 As shown, the base 2 also includes a limiting boss 34, which protrudes from the first wall surface 21. The limiting boss 34 is located at the connection between the cylindrical part 3 and the base 2. The limiting boss 34 can abut against the opening 65 of the valve body 6, thereby positioning the valve body 6 in a direction perpendicular to the first wall surface 21. In this embodiment, the cylindrical part 3 can be entirely made of chrome copper. Chrome copper has relatively high hardness and high conductivity, which is beneficial to improving welding quality. In other embodiments of the cylindrical part 3, such as... Figure 8 As shown, the cylindrical portion includes a conductive portion 32 and a supporting portion 33, both extending along the extension direction of the cylindrical portion. The conductive portion is fixed to the supporting portion. At least a portion of the conductive portion 32 faces the welding component 4 and is correspondingly disposed to the welding component 4. The supporting portion has a higher hardness than the conductive portion. The conductive portion 32 can be made of copper or a copper alloy, and the supporting portion 33 can be made of steel. This arrangement gives the cylindrical portion 3 high conductivity, while also providing high overall hardness and reducing the risk of deformation under pressure. Figure 6 and Figure 7As shown, the inner surface of cavity 62 is cylindrical or substantially cylindrical, and the first outer peripheral surface 31 of cylindrical portion 3 is also cylindrical or substantially cylindrical. In other embodiments of cylindrical portion 3, the shape of the first outer peripheral surface 31 of cylindrical portion 3 can vary with the shape of cavity 62. Furthermore, cylindrical portion 3 can be a prism, cone, or frustum. In other embodiments of cylindrical portion 3, cylindrical portion 3 may not fill the entire cavity 62; for example, the cross-section of cylindrical portion can be semi-circular, with the arc surface of cylindrical portion facing the welding component 4, which can also serve to position the first mating component.

[0027] like Figures 1 to 3 As shown, the welding equipment also includes a mounting part 1, which is connected to the base and protrudes from the first wall surface 21. The mounting part 1 can extend horizontally. The mounting part 1 is located above the columnar part 3, which is located away from the welding component 4 relative to the mounting part 1. The mounting part includes a first sub-mounting part 11 and a second sub-mounting part 13, which are located on opposite sides of the columnar part 3 in the horizontal direction, and are separated by a distance. The welding equipment also includes a first notch 17 located between the first and second sub-mounting parts, which corresponds to the welding component 4. When not welding, the welding component 4 is located above the mounting part 1. It should be noted that "corresponds" means that the extension line of the reciprocating motion direction of the welding component 4 passes through the first notch 17. During welding operation, the mating part 51 of the second mating component 5 corresponds to the first notch 17.

[0028] like Figures 1 to 4 As shown, in this embodiment, the first sub-mounting part has a first mounting surface 111, and the second sub-mounting part has a second mounting surface 131. The first and second mounting surfaces are perpendicular or substantially perpendicular to the reciprocating motion direction of the welding component 4, and the first mounting surface 111 and the second mounting surface 131 are located on the side of the mounting part closer to the welding component 4. The welding equipment also includes a first limiting component 16 and a second limiting component 15. At least a portion of the first limiting component 16 protrudes from the first mounting surface 111. Figure 6 As shown, at least a portion of the second limiting member 15 protrudes from the second mounting surface 131, the first limiting member 16 has a first clamping surface 161 opposite to the first mounting surface 111, and the second limiting member 15 has a second clamping surface opposite to the second mounting surface 131.

[0029] like Figures 2 to 4As shown, the mounting portion 1 includes a first recess 18, which is recessed into the second mounting surface 131. When the second mating component 5 is fixed to the mounting portion 1, the first recess 18 corresponds to the protrusion 58 of the second mating component 5, and the first recess 18 can accommodate the protrusion 58, preventing the protrusion 58 from affecting the mating between the flat surface of the second mating component and the second mounting surface 131. Multiple first recesses 18 can be provided at the first and second sub-mounting portions as needed.

[0030] During welding operations, such as Figures 3 to 4 As shown, a portion of the second mating component can be disposed between the first clamping surface and the first mounting surface, with the first clamping surface abutting against the second mating component 5; another portion of the second mating component can be disposed between the second clamping surface and the second mounting surface, with the second clamping surface abutting against the second mating component 5, thereby enabling the positioning of the second mating component in a direction perpendicular to the first mounting surface.

[0031] like Figures 3 to 4 As shown, a portion of the first limiting member 16 passes through the first mounting hole 57 of the second mating member, and a portion of the second limiting member 15 passes through the second mounting hole 56 of the second mating member, resulting in a rough positioning in a direction parallel to the first and second mounting surfaces. The inner wall of the first mounting hole and the outer wall of the first limiting member are in clearance fit, and the inner wall of the second mounting hole and the outer wall of the second limiting member are in clearance fit, allowing the second mating member to move relative to the mounting part 1 in a direction parallel to the first and second mounting surfaces. This allows the second mating member to move horizontally when pressurized, adjusting the positional relationship between the second mating member and the first mating member, resulting in more precise positioning of the first and second mating members. In this embodiment, to adapt to the shape of the second mating member, the first and second mounting surfaces are located or approximately located on the same plane. Furthermore, since at least a portion of the mounting part is made of a flexible material, the mounting part can also swing slightly in the horizontal direction, allowing each welding boss 55 to align horizontally with the cylindrical second outer peripheral surface 64 of the first mating member 6. The mounting part can be plate-shaped.

[0032] In this embodiment, as Figures 3 to 5 As shown, the second mating component has a first mounting hole 57, a second mounting hole 56, and a third mounting hole 510 located at different positions. No limiting component is provided near the third mounting hole 510, thereby reducing deformation of the second mating component 5 when it is fixed to the mounting portion. Specifically, as... Figure 11As shown, in actual manufacturing, both the surface of the mounting part and the surface of the second mating component will have certain unavoidable manufacturing tolerances. The second mating component is pressed against the surface of the mounting part by the first limiting component 16 at the first mounting hole, and is pressed against the surface of the mounting part by the second limiting component 15 at the second mounting hole 56. Due to manufacturing tolerances, there will be a certain gap d between the third mounting hole of the second mating component and the surface of the mounting part. If a third hole 119 is provided at the location corresponding to the third mounting hole of the mounting part, such as... Figure 12 As shown, if the third limiting component 118 is used to forcibly press down the part at the third mounting hole to fit against the surface of the mounting part, the second mating component will be deformed, which will prevent the second mating component from being properly aligned with the first mating component, thus affecting the next welding operation.

[0033] like Figure 2 and Figure 6 As shown, the first limiting member 16 and the mounting part 1 are separately disposed, and the second limiting member 15 and the mounting part 1 are separately disposed. The mounting part 1 includes a first hole 14 located in the first sub-mounting part 11 and a second hole located in the second sub-mounting part 13. During welding operations, as... Figures 4 to 6 As shown, the first mounting hole at one end of the second mating component is aligned or approximately aligned with the first hole, and the second mounting hole at the other end of the second mating component is aligned or approximately aligned with the second hole. When fixing the second mating component, one end of the first limiting component 16 passes through the first mounting hole and is inserted into the first hole with an interference fit, and one end of the second limiting component 15 passes through the second mounting hole and is inserted into the second hole with an interference fit. The first limiting component 16 and the second limiting component can be pins, which facilitates quick assembly and disassembly between the first and second limiting components and the mounting part, allowing for faster replacement of the second mating component and thus improving the efficiency of the welding process. At the same time, the structure of the mounting part, the first limiting component, and the second limiting component is relatively simple, easy to manufacture, and has a low cost.

[0034] like Figure 4As shown, the mounting part 1 is made of flexible material and has a certain degree of elasticity. The first and second sub-mounting parts can swing slightly in the reciprocating motion direction of the welding component 4. The second mating component that mates with the first and second mounting surfaces can also swing slightly in the reciprocating motion direction of the welding component 4. When the welding component 4 is not pressurized or is not in contact with the second mating component, the welding boss 55 of the second mating component is in contact with the first mating component, and the other parts of the second mating component are located between the first mating components with a certain gap. When the welding component 4 is pressurized, the first and second sub-mounting parts under pressure can move closer to the cylindrical part, so that after each welding boss 55 of the second mating component 5 melts, the second mating component can still fit tightly with the first mating component 6, which is beneficial to improving the welding quality. Furthermore, during pressure welding, a portion of the second mating component that contacts the first mating component will melt. The distance between the second and first mating components needs to be closer than when they are not welded. The first mounting surface 111 and the second mounting surface 131 can move closer to the cylindrical portion to accommodate this distance change. This buffers the pressure on the welding component 4, preventing deformation of the first and / or second mating components, and also prevents incomplete welds between the first and second mating components. On the other hand, the flexible material of the mounting portion 1 facilitates the insertion and removal of the first and second limiting components 16 and 15. The hardness of the mounting portion 1 is less than that of the second mating component 5, which relatively reduces indentations or damage to the second mating component caused by the mounting portion. The mounting portion 1 can be made of nylon.

[0035] It should be noted that "flexible material" refers to a material that can deform relative to the material of the base and column, including plastics, elastic metals, and rubber. For example, if the base and column are made of a high-rigidity metal, the mounting part can be made of a lower-rigidity nylon.

[0036] In this embodiment, the base and columnar part are made of metal, while the mounting part 1 can be made of nylon, which has lower rigidity. Furthermore, the second mating component 5 is made of a metal with relatively high hardness, while nylon has relatively low hardness; therefore, the mounting part 1 will not damage the second mating component 5.

[0037] In other embodiments, the mounting part 1 may not be made of a single material. For example... Figure 9 As shown, the mounting section includes a first plate 101 and a second plate 102, with the first plate being made of a flexible material. A first mounting surface and a second mounting surface are located on the first plate. The second plate is made of a different material than the first plate, and the first plate is closer to the welding component 4 relative to the second plate. The first plate is fixed to the second plate, and the second plate is fixed to the base, or the second plate is part of the base 2. The second plate serves a supporting function; the second plate can be made of metal, while the first plate can be made of rubber or nylon.

[0038] like Figures 4 to 6As shown, specifically, the curvature of the mating part 51 is consistent with or approximately consistent with the curvature of the second outer peripheral surface 64. The welding bosses 55 are formed on the second mating part 5 before the spot welding operation. During the welding operation, each welding boss corresponds to the first outer peripheral surface 31 of the cylindrical part, and each welding boss protrudes towards the first outer peripheral surface 31 of the cylindrical part. During the welding operation, the tops of the welding bosses 55 contact the first mating part 6. The number of welding bosses 55 is greater than or equal to four, and the number of welding bosses can be even. The welding bosses 55 are arranged in two rows in a direction perpendicular to the axis of the cylindrical part, with an equal number of welding bosses in each row. The extension direction of each row is the same as the extension direction of the axis of the cylindrical part, and the two rows of bosses can be symmetrically distributed in the horizontal direction with the axis of the cylindrical part as the axis of symmetry. When both rows of welding bosses are in contact with the second outer peripheral surface 64 of the cylindrical first mating component, relatively accurate positioning can be achieved between the second mating component 5 and the first mating component 6 fitted onto the cylindrical part in the direction perpendicular to the axis of the cylindrical part. Figures 4 to 6 As shown in the figure, the X direction represents the direction perpendicular to the axial direction of the cylindrical part, and the Y direction represents the direction parallel to the axial direction of the cylindrical part. If only one row of welding bosses is in contact with the first mating component when no pressure is applied, then when the mating part 51 is subjected to the pressure of the welding component 4, the second welding component can move in the X direction under the supporting force of the first mating component, so that the other row of welding bosses also contacts the first mating component, and is finally positioned in the correct position. In this embodiment, as... Figures 4 to 6 As shown, the second mating component 5 has four welding bosses 55, which have a relatively simple structure and are easy to process.

[0039] like Figure 6 As shown, the welding component 4 includes a first boss portion 41 and a second boss portion 42, with the tops of the first boss portion 41 and the second boss portion 42 facing the cylindrical portion 3. The first boss portion is correspondingly arranged with one row of welding bosses 55, and the second boss portion is correspondingly arranged with another row of welding bosses 55. When the welding component is pressed down as a whole, the projections of the tops of the first and second boss portions onto the mating portion 51 cover each welding boss 55. Pressure towards the first mating component 6 can be applied to the mating portion 51 through the first and second boss portions. In this embodiment, the first boss portion 41 and the second boss portion 42 are located on opposite sides in a direction perpendicular to the axis of the cylindrical portion, so that the second mating component 5 is subjected to uniform force, and each boss portion corresponds to two welding bosses 55. The second recess 43 is located between the first boss and the second boss. The inner wall of the second recess 43 does not contact the mating part 51, so that the contact area between the welding component 4 and the mating part 51 is as small as possible, and the pressure applied by the welding component 4 is concentrated as close as possible to the vicinity of the welding boss 55, thereby reducing the risk of deformation at other positions of the mating part 51.

[0040] like Figure 1 and Figure 2As shown, the welding equipment also includes a first limiting part 24 and a second limiting part 22. Both the first limiting part 24 and the second limiting part 22 are connected to the base 2 and both protrude from the first wall surface 21. The first limiting part 24 and the second limiting part 22 are spaced apart by a distance. The first limiting part includes a first pad 25, and the second limiting part includes a second pad 26. The first and second pads can extend in the horizontal direction.

[0041] like Figure 6 As shown, the first limiting part 24 has a first sidewall part 241, and the second limiting part 22 has a second sidewall part 221. The first sidewall part 241 and the second sidewall part 221 are opposite to each other and can be arranged parallel to each other. In this embodiment, the first sidewall part and the second sidewall part can extend in a vertical direction. It should be noted that the shape and position of the first limiting part and the second limiting part can be adjusted according to the change of the position of the tube 63.

[0042] like Figure 6 As shown, the first pad 25 has a first protrusion 251 protruding from the first sidewall portion 241, and the second pad 26 has a second protrusion 261 protruding from the second sidewall portion 221. The first protrusion has a third clamping surface at its top end, and the second protrusion has a fourth clamping surface at its top end. The third and fourth clamping surfaces are arranged opposite to each other. When the first mating component is installed into the welding equipment, at least a portion of the tube 63 of the first mating component 6 extends between the first limiting portion 24 and the second limiting portion 22. The third clamping surface contacts or gap-fits one side of the tube 63, and the fourth clamping surface contacts or gap-fits the other side of the tube 63. This prevents the first mating component 6, which has a cylindrical cavity, from rotating around the cylindrical portion 3, reduces the swing amplitude of the tube 63 around the cylindrical portion, and achieves more precise positioning between the tube 63 and the second mating component 5. The first and second pads have a lower hardness than the first mating component 6. The first pad 25 and the second pad 26 can be made of nylon, while the first mating component 6 is made of metal. Nylon has a lower hardness than metal, which can reduce the indentations or damage to the first mating component 6 caused by the first and second limiting parts. At the same time, nylon has relatively high elasticity, allowing a certain amount of springback between the first and second limiting parts and the tube 63.

Claims

1. A production line comprising welding equipment for welding a first mating component (6) and a second mating component (5), characterized in that, The welding equipment includes a base (2) having a first wall surface (21), and a columnar portion (3) protruding from the first wall surface (21). The columnar portion (3) is part of the base (2) or fixed to the base (2). The welding equipment also includes a welding component (4) capable of reciprocating in at least one direction. In the reciprocating direction of the welding component (4), at least a portion of the first outer peripheral surface (31) of the columnar portion (3) is disposed opposite to the welding component (4). The welding equipment also includes a mounting portion (1) connected to the base and protruding from the first wall surface (21). At least a portion of the mounting portion (1) facing the welding component (4) is made of a flexible material. The portion of the columnar portion (3) opposite to the welding component (4) is made of a conductive material. A portion of the first mating component is fitted onto the cylindrical portion (3); the second mating component is limited to the mounting portion, such that at least a portion of the first mating component can contact the second mating component, and the contact portion between the first mating component and the second mating component is located between the cylindrical portion and the welding component; The mounting portion includes a first sub-mounting portion (11), which has a first mounting surface (111) perpendicular to the reciprocating motion direction of the welding component (4). The first mounting surface (111) is located on the side of the mounting portion close to the welding component (4). The welding equipment also includes a first limiting component, at least a portion of which protrudes from the first mounting surface (111). The first limiting component (16) has a first clamping surface opposite to the first mounting surface.

2. The production line as described in claim 1, characterized in that, The mounting part is made of flexible material. The mounting part (1) and the base (2) are separately arranged. The mounting part (1) is fixed to the base.

3. The production line as described in claim 1, characterized in that, The mounting part is plate-shaped and includes a first plate and a second plate. The first plate is made of flexible material. The first plate is close to the welding component relative to the second plate. The first plate is fixed to the second plate, and the second plate is fixed to the base or the second plate is part of the base (2).

4. The production line according to any one of claims 1-3, characterized in that, The mounting part includes a second sub-mounting part (13), the reciprocating motion direction of the welding component (4) is vertical, and the first sub-mounting part (11) and the second sub-mounting part (13) are located on both sides of the columnar part (3) in the horizontal direction. The first sub-mounting part (11) and the second sub-mounting part (13) are separated by a distance. The welding equipment also includes a first notch part (17) located between the first sub-mounting part and the second sub-mounting part. The first notch part (17) is correspondingly provided with the welding component (4).

5. The production line as described in claim 4, characterized in that, The second sub-mounting part (13) has a second mounting surface (131), which is perpendicular to the reciprocating motion direction of the welding component (4), and the second mounting surface (131) is located on the side of the mounting part closer to the welding component (4); the production line includes a second limiting component (15), at least a portion of which protrudes from the second mounting surface (131), and the second limiting component (15) has a second clamping surface opposite to the second mounting surface; The mounting portion (1) includes a first recess (18) which is recessed in the second mounting surface (131).

6. The production line as described in claim 5, characterized in that, The first limiting component (16) and the second limiting component (15) are separately provided from the mounting part (1); The mounting part (1) includes a first hole (14) located in the first sub-mounting part and a second hole located in the second sub-mounting part (13). The first clamping surface is located at one end of the first limiting member (16), and the other end of the first limiting member is inserted into the first hole and has an interference fit with the first hole. The second clamping surface is located at one end of the second limiting member (15), and the other end of the second limiting member is inserted into the second hole and has an interference fit with the second hole. The second mating member includes a first mounting hole and a second mounting hole located at both ends of the second mating member. A portion of the first limiting member (16) passes through the first mounting hole of the second mating member, and a portion of the second limiting member (15) passes through the second mounting hole of the second mating member. The inner wall of the first mounting hole is in clearance fit with the outer wall of the first limiting component, and the inner wall of the second mounting hole is in clearance fit with the outer wall of the second limiting component. The hardness of the mounting part (1) is less than that of the second mating part.

7. The production line as described in claim 1, characterized in that, The second mating component includes a mating part (51) located between the first outer peripheral surface of the cylindrical part and the welding component. The second mating component includes a plurality of welding bosses (55). The welding bosses correspond to the first outer peripheral surface (31) of the cylindrical part, and the welding bosses protrude toward the first outer peripheral surface (31) of the cylindrical part. The top of each welding boss (55) contacts the first mating component (6). The number of welding bosses (55) is greater than or equal to four, the number of welding bosses (55) is even, the welding bosses (55) are arranged in two rows in a direction perpendicular to the axis of the cylindrical part (3), each row of welding bosses includes the same number of welding bosses, and the extension direction of each row of welding bosses is the same as the extension direction of the axis of the cylindrical part (3). The welding component (4) includes a first boss (41) and a second boss (42), the tops of the first boss (41) and the second boss (42) facing the cylindrical part (3); the first boss is correspondingly arranged with the row of welding bosses (55), and the second boss is correspondingly arranged with the other row of welding bosses (55); the first boss (41) and the second boss (42) are located on both sides of the cylindrical part in the horizontal direction, and the welding component also includes a second recess, the second recess (43) is located between the first boss and the second boss, and the inner wall of the second recess (43) does not contact the mating part (51).

8. The production line as described in claim 1, characterized in that, The cylindrical part (3) and the base are an integral structure, and the first outer peripheral surface (31) located on the outer periphery of the cylindrical part is a cylindrical surface; The columnar portion (3) is located away from the welding component (4) relative to the mounting portion (1); the base also includes a limiting boss (34) that protrudes from the first wall surface (21) and is located at the connection between the columnar portion and the base.

9. The production line as described in claim 1, characterized in that, The cylindrical part includes a conductive part (32) and a supporting part (33). The conductive part and the supporting part both extend along the extension direction of the cylindrical part. The conductive part is fixed to the supporting part. At least a portion of the conductive part faces the welding component (4) and is correspondingly arranged with the welding component. The conductive part is made of copper or copper alloy. The hardness of the supporting part is greater than that of the conductive part.

10. The production line according to any one of claims 1-3 and 5-9, characterized in that, The welding equipment includes a first limiting part (24) and a second limiting part (22). Both the first limiting part (24) and the second limiting part (22) are connected to the base (2) and both protrude from the first wall surface (21). The first limiting part and the second limiting part are located on both sides of the columnar part (3) and are separated by a distance. The first limiting part includes a first pad (25), and the second limiting part includes a second pad (26). The hardness of the first pad and the second pad is less than that of the first mating component. The first limiting part (24) includes a first sidewall part (241), and the second limiting part (22) includes a second sidewall part (221). The first sidewall part (241) and the second sidewall part (221) are opposite to each other and are arranged in parallel. The first pad (25) includes a first protrusion (251) protruding from the first sidewall part (241), and the second pad (26) includes a second protrusion (261) protruding from the second sidewall part (221). The first protrusion includes a third clamping surface located at the top of the first protrusion, and the second protrusion includes a fourth clamping surface located at the top of the second protrusion. The third clamping surface and the fourth clamping surface are arranged opposite to each other.

11. The production line as described in claim 4, characterized in that, The welding equipment includes a first limiting part (24) and a second limiting part (22). Both the first limiting part (24) and the second limiting part (22) are connected to the base (2) and both protrude from the first wall surface (21). The first limiting part and the second limiting part are located on both sides of the columnar part (3) and are separated by a distance. The first limiting part includes a first pad (25), and the second limiting part includes a second pad (26). The hardness of the first pad and the second pad is less than that of the first mating component. The first limiting part (24) includes a first sidewall part (241), and the second limiting part (22) includes a second sidewall part (221). The first sidewall part (241) and the second sidewall part (221) are opposite to each other and are arranged in parallel. The first pad (25) includes a first protrusion (251) protruding from the first sidewall part (241), and the second pad (26) includes a second protrusion (261) protruding from the second sidewall part (221). The first protrusion includes a third clamping surface located at the top of the first protrusion, and the second protrusion includes a fourth clamping surface located at the top of the second protrusion. The third clamping surface and the fourth clamping surface are arranged opposite to each other.

12. A manufacturing method, characterized in that, The first mating component and the second mating component are welded using the welding equipment included in the production line as described in any one of claims 1-11. The manufacturing method includes: A portion of the first mating component is fitted onto the cylindrical portion (3); The second mating component is positioned within the mounting portion, such that at least a portion of the first mating component can contact the second mating component, and the contact portion between the first mating component and the second mating component is located between the cylindrical portion and the welding component; The welding component (4) is pressed down to contact the first mating component and energized.

13. The manufacturing method as described in claim 12, characterized in that, The welding equipment also includes two limiting components, and the mounting part also includes a second sub-mounting part (13). The first sub-mounting part (11) has at least one hole that mates with the limiting component, and the second sub-mounting part (13) has at least one hole that mates with the limiting component. The second mating component has three or more mounting holes. The number of the limiting components is exactly two, and the limiting components, the holes, and the mounting holes mate with each other.

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