Pressure adjusting mechanism of welding equipment and roll welding device

Abstract

The utility model provides a pressure adjusting mechanism of welding equipment and a roll welding device, and belongs to the technical field of welding equipment. The adjusting mechanism comprises a fixed seat, a rotating seat, a first rotating shaft, a second rotating shaft, a follower wheel and a connecting assembly; the rotating seat is rotationally connected with the fixed seat through a first rotating shaft, the follower wheel and the second rotating shaft are coaxially arranged, the follower wheel is rotationally connected with the rotating seat through the second rotating shaft, and the follower wheel can rotate around the first rotating shaft along with the rotating seat so as to abut against the circumferential side wall of the welding cylinder; the axial direction of the first rotating shaft is parallel to the cross section of the welding cylinder. The axial direction of the second rotating shaft intersects with the plane corresponding to the cross section of the welding cylinder. The connecting assembly is connected between the rotating base and the fixed base so that the rotating base can be fixed to the fixed base. The follow-up wheels are arranged to support the welding cylinder, the welding cylinder is prevented from inclining towards the ground, and therefore the situation that the welding effect of products is affected due to deformation of the welding cylinder is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and particularly relates to a pressure regulating mechanism and a seam welding device for welding equipment. Background Art

[0002] In the related art, a supporting skeleton for providing support and a flexible filter membrane are spirally wound, and a rigid spiral filter element is jointly formed by the spiral supporting skeleton and the spiral filter membrane, so that the spiral filter element has a certain rigidity to meet the requirements of the use environment. The structure of the spiral filter element can refer to the pipe fitting structure in the Chinese invention document with the publication number of CN117862279A. In some products, in order to improve the connection stability between the supporting skeleton and the filter membrane, the supporting skeleton and the filter membrane are welded. Generally, a seam welding device is used to weld the two. Specifically, the spiral filter element formed by the supporting skeleton and the filter membrane is jointly wound outside the welding cylinder. With the rotation of the welding cylinder, the spiral filter element advances spirally. During the advancing process, the welding cylinder cooperates with the welding pad to weld the supporting skeleton and the filter membrane.

[0003] However, during the welding process, the welding cylinder is prone to deformation and tilt towards the ground, resulting in a change in the contact position between the welding cylinder and the welding pad, thereby affecting the normal welding of the materials wound on the welding cylinder. Summary of the Utility Model

[0004] The purpose of this application is to provide a pressure regulating mechanism and a seam welding device for welding equipment, so as to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is realized as follows:

[0006] In the first aspect, an embodiment of this application provides a pressure regulating mechanism for welding equipment, which is applied to a seam welding device and includes a fixed seat, a rotating seat, a first rotating shaft, a second rotating shaft, a follower wheel, and a connecting component; the rotating seat is rotatably connected to the fixed seat through the first rotating shaft, the follower wheel is coaxially arranged with the second rotating shaft, the follower wheel is rotatably connected to the rotating seat through the second rotating shaft, and the follower wheel can follow the rotating seat to rotate around the first rotating shaft to abut against the circumferential side wall of the welding cylinder; the axial direction of the first rotating shaft is parallel to the cross-section of the welding cylinder, and the axial direction of the second rotating shaft intersects with the plane corresponding to the cross-section of the welding cylinder; the connecting component is connected between the rotating seat and the fixed seat to fix the rotating seat to the fixed seat.

[0007] In the second aspect, an embodiment of this application provides a seam welding device, which includes the pressure regulating mechanism for welding equipment provided in the first aspect embodiment.

[0008] The beneficial effects of this application are:

[0009] In this application, the follower wheel is installed on the rotating seat. By controlling the rotation of the rotating seat, the position of the follower wheel is changed so that the follower wheel can be pressed against the circumferential side wall of the welding cylinder, and the pressure between the follower wheel and the welding cylinder is adjusted, enabling the follower wheel to support the welding cylinder and prevent the welding cylinder from tilting towards the ground, thereby avoiding the situation where the deformation of the welding cylinder affects the welding effect of the product. Moreover, the follower wheel is rotatably engaged with the rotating seat, and the rotation axis line of the follower wheel intersects with the plane corresponding to the cross-section of the welding cylinder. The rotation axis line of the follower wheel has a component parallel to the axial direction of the welding cylinder. When the follower wheel is in contact with the welding cylinder, the welding cylinder can drive the follower wheel to rotate synchronously. While the follower wheel supports the welding cylinder, it can reduce the friction between the spiral filter element on the welding cylinder and the follower wheel, and reduce the transmission resistance of the spiral filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments of the present utility model or the description of the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 is the overall structural schematic diagram of the pressure regulating mechanism provided by some embodiments of this application Figure 1 ;

[0012] Figure 2 is the overall structural schematic diagram of the pressure regulating mechanism provided by some embodiments of this application Figure 2 ;

[0013] Figure 3 is the schematic diagram of the cooperation between the pressure regulating mechanism and the welding cylinder provided by some embodiments of this application;

[0014] Figure 4 is the schematic diagram of the cooperation between the follower seat and the follower wheel provided by some embodiments of this application;

[0015] Figure 5 is the exploded schematic diagram of the pressure regulating mechanism provided by some embodiments of this application;

[0016] Figure 6 is the structural schematic diagram of the rotating seat provided by some embodiments of this application;

[0017] Figure 7 is the cross-sectional schematic diagram of the pressure regulating mechanism provided by some embodiments of this application.

[0018] In the figure: 100 - fixed seat, 110 - rotating groove, 200 - rotating seat, 210 - rotating protrusion, 300 - first rotating shaft, 400 - second rotating shaft, 500 - follower wheel, 610 - first connecting bolt, 620 - first threaded hole, 630 - first mounting through hole, 640 - second connecting bolt, 650 - second threaded hole, 700 - follower seat, 710 - mounting through hole, 800 - third rotating shaft, 900 - welding cylinder. Specific embodiments

[0019] The following description provides many different embodiments or examples for implementing different features of the present invention. The elements and arrangements described in the following specific examples are only used to concisely express the present invention, which are only examples and are not intended to limit the present invention.

[0020] In the related art, during the welding process of the spiral filter element, the welding cylinder is prone to tilting and deforming towards the ground. After research by the inventor, it is found that after the spiral filter element is welded, it is still supported by the welding cylinder, and the gravity of the spiral filter element will exert a pressure towards the ground on the welding cylinder, resulting in the welding cylinder being prone to deformation. The more the welding length of the spiral filter element, the greater the pressure exerted on the welding cylinder.

[0021] In view of this, the embodiment of the present application provides a pressure regulating mechanism for a welding device, which is applied to a seam welding device. Referring to Figures 1 to 7 as shown, this pressure regulating mechanism can support the welding cylinder 900, resist the deformation pressure of the welding cylinder 900, prevent the welding cylinder 900 from deforming, ensure the stability of the relative position between the welding cylinder 900 and the welding pad, ensure the stability of the welding position of the seam welding device, and ensure the welding effect of the product.

[0022] Referring to Figures 1 to 3 and Figure 5 as shown, the pressure regulating mechanism provided by the embodiment of the present application includes a fixed seat 100, a rotating seat 200, a first rotating shaft 300, a second rotating shaft 400, a follower wheel 500, and a connecting component. The fixed seat 100 is used to be fixed to the mounting base of the seam welding device or directly fixed to the environment. The installation position of the fixed seat 100 determines the overall installation position of the pressure regulating mechanism. The rotating seat 200 is rotatably connected to the fixed seat 100 through the first rotating shaft 300, and the rotating seat 200 can rotate relative to the fixed seat 100 around the axis of the first rotating shaft 300. The follower wheel 500 is coaxially arranged with the second rotating shaft 400, and the follower wheel 500 is rotatably connected to the rotating seat 200 through the second rotating shaft 400. The follower wheel 500 can rotate around the axis of the second rotating shaft 400 under the action of an external force.

[0023] The follower wheel 500 is installed on the rotating seat 200. When the rotating seat 200 rotates relative to the fixed seat 100 around the first rotating shaft 300, the follower wheel 500 rotates around the first rotating shaft 300 following the rotating seat 200, so as to press against the circumferential side wall of the welding cylinder 900, support the welding cylinder 900, prevent the welding cylinder 900 from tilting towards the ground, thus avoiding deformation of the welding cylinder 900 and preventing errors in the cooperation between the welding cylinder 900 and the welding pad from affecting the welding effect of the product. When welding the spiral filter element, the spiral filter element is sleeved outside the welding cylinder 900. The follower wheel 500 pressing against the circumferential side wall of the welding cylinder 900 actually presses against the spiral filter element sleeved outside the welding cylinder 900, and the spiral filter element is clamped between the follower wheel 500 and the welding cylinder 900.

[0024] In actual use, the follower wheel 500 is installed below the welding cylinder 900. Generally, there is a line contact or a point contact between the circumferential side wall of the follower wheel 500 and the circumferential side wall of the welding cylinder 900. And the contact position of the two circumferential side walls is generally directly below the welding cylinder 900. The follower wheel 500 contacts the lowest point of the circumferential side wall of the welding cylinder 900. The direction of the supporting force of the follower wheel 500 on the welding cylinder 900 is opposite to the direction of gravity, avoiding the situation that the welding cylinder 900 is not in a straight line of force, resulting in deflection of the welding cylinder 900 and other conditions.

[0025] In the embodiment provided by the present application, the axial direction of the first rotating shaft 300 is parallel to the cross-section of the welding cylinder 900. Refer to Figure 3 as shown, the cross-section of the welding cylinder 900 is represented by the dotted line in Figure 3 , and the cross-section is perpendicular to the paper surface direction. Under such a layout, during the process of the rotating seat 200 rotating around the first rotating shaft 300, even if the rotation angle of the follower wheel 500 changes, the contact position between the follower wheel 500 and the welding cylinder 900 is always directly below the welding cylinder 900, and the supporting direction of the follower wheel 500 on the welding cylinder 900 is always opposite to the direction of gravity, which can maintain the stability of the position of the welding cylinder 900.

[0026] During the process of welding the spiral filter element, the requirement for welding precision is relatively high. Therefore, it is necessary to limit the installation direction of the first rotating shaft 300. At the same time, during installation, it is also necessary to note that the follower wheel 500 needs to be directly below the welding cylinder 900, so as to ensure the stability of the support of the adjusting mechanism on the welding cylinder 900 and ensure the stability of the position of the welding cylinder 900.

[0027] The rotation axis line of the follower wheel 500 is the axial direction of the second rotating shaft 400. The axial direction of the second rotating shaft 400 intersects with the cross-section of the welding cylinder 900, that is, the rotation axis line intersects with the cross-section of the welding cylinder 900, and the rotation axis line has a component parallel to the axial direction of the welding cylinder 900. When the follower wheel 500 abuts against the welding cylinder 900, the welding cylinder 900 can drive the follower wheel 500 to rotate through the frictional force between the welding cylinder 900 and the follower wheel 500. The spiral filter element is pressed tightly between the welding cylinder 900 and the follower wheel 500, and the spiral filter element rotates forward. During the transmission process of the spiral filter element, setting the follower wheel 500 to rotate following the welding cylinder 900 can reduce the frictional force between the spiral filter element and the follower wheel 500, thereby reducing the transmission resistance of the spiral filter element and enabling the spiral filter element to be smoothly transmitted.

[0028] The connecting component is connected between the rotating seat 200 and the fixed seat 100 to fix the rotating seat 200 to the fixed seat 100. The connecting component is used to fix the rotation angle of the rotating seat 200. In actual use, the rotation range of the rotating seat 200 is actually small. The adjusting mechanism provided by the embodiment of the present application is mainly used for fine-tuning the position of the follower wheel 500, thereby adjusting the pressure between the welding cylinder 900 and the follower wheel 500 and adjusting the supporting effect of the follower wheel 500 on the welding cylinder 900.

[0029] In some preferred embodiments, the axis of the second rotating shaft 400 and the axis of the welding cylinder 900 are arranged in the same plane, and the axis of the second rotating shaft 400 is parallel to the axis of the welding cylinder 900. When the follower wheel 500 is in tight fit with the welding cylinder 900, the welding cylinder 900 drives the follower wheel 500 to rotate, and the maximum linear velocity of the follower wheel 500 can be equal to the linear velocity of the welding cylinder 900, which can further reduce the frictional force between the follower wheel 500 and the spiral filter element.

[0030] In some preferred embodiments, the adjusting mechanism further includes a follower seat 700. Refer to Figures 1 to 7 As shown, the follower seat 700 is connected between the rotating seat 200 and the follower wheel 500. The follower wheel 500 is rotationally connected to the follower seat 700 through the second rotating shaft 400, and the follower seat 700 is rotationally connected to the rotating seat 200 through the third rotating shaft 800. The third rotating shaft 800 is parallel to the first rotating shaft 300. The rotating seat 200 and the follower wheel 500 are indirectly connected through the follower seat 700. During the rotation of the rotating seat 200 around the first rotating shaft 300, both the follower seat 700 and the follower wheel 500 can follow the rotation of the rotating seat 200. At the same time, since the third rotating shaft 800 is parallel to the first rotating shaft 300, during the rotation of the follower seat 700 around the first rotating shaft 300, the follower seat 700 can also rotate around the third rotating shaft 800, thereby adjusting the position of the follower wheel 500 so that the follower wheel 500 can be smoothly pressed against the welding cylinder 900.

[0031] By providing the follower seat 700, after the follower wheel 500 contacts the welding cylinder 900, the position of the follower wheel 500 can still be adjusted by the rotation of the follower seat 700, so that the follower wheel 500 can be adjusted to the position with the largest contact area with the welding cylinder 900, improving the support stability between the follower wheel 500 and the welding cylinder 900. At the same time, with a relatively large contact area between the two, the situation of stress concentration on the follower wheel 500 can be avoided.

[0032] Further preferably, the follower seat 700 is provided with a mounting through hole 710. Refer to Figure 2 As shown, the follower wheel 500 is installed in the mounting through hole 710. The follower wheel 500 contacts the welding cylinder 900 through one opening of the mounting through hole 710, and the other opening of the mounting through hole 710 is located below the follower wheel 500. The state of the follower wheel 500 can be observed through this opening to check whether the follower wheel 500 is operating normally. At the same time, with both ends of the mounting through hole 710 open, a larger installation space can be provided for the follower wheel 500, and the dimensional requirements for the follower seat 700 can be correspondingly reduced.

[0033] When the follower seat 700 is provided with the mounting through hole 710, in some embodiments, the third rotating shaft 800 passes through the side wall of the mounting through hole 710 and is connected to the follower seat 700. There are two third rotating shafts 800, and the two third rotating shafts 800 are respectively located on the radial two sides of the follower wheel 500, making the rotational connection between the follower seat 700 and the rotating seat 200 more stable.

[0034] In some embodiments of the present application, the connecting component can be an elastic member connected between the rotating seat 200 and the fixed seat 100. While the elastic member keeps a certain connection between the rotating seat 200 and the fixed seat 100, the rotating seat 200 has a certain rotational allowance. In a specific implementation, when the follower wheel 500 rotates to abut against the welding cylinder 900, the elastic member is stretched, and the elastic member has a tendency to drive the rotation of the rotating seat 200. However, since the welding cylinder 900 is on the rotation path of the follower wheel 500 rotating around the first rotating shaft 300, the position of the rotating seat 200 will not rotate, and the follower wheel 500 can stably support the welding cylinder 900. However, in this structure, it is relatively difficult to adjust the magnitude of the supporting force of the follower wheel 500 on the welding cylinder 900.

[0035] In other embodiments of the present application, refer to Figures 5 to 7As shown, the connecting component includes a first connecting component and a second connecting component. The first connecting component includes a first connecting bolt 610, a first threaded hole 620, and a first mounting through-hole 630. The second connecting component includes a second connecting bolt 640 and a second threaded hole 650. One of the fixed seat 100 and the rotating seat 200 is provided with the first threaded hole 620, and the other is provided with the second threaded hole 650 and the first mounting through-hole 630. The radial dimension of the first mounting through-hole 630 is larger than the radial dimension of the first threaded hole 620.

[0036] The first connecting bolt 610 passes through the first mounting through-hole 630 and is threadedly connected to the first threaded hole 620. The head of the first connecting bolt 610 abuts against the fixed seat 100 or the rotating seat 200 corresponding to the first mounting through-hole 630. When the first threaded hole 620 is provided in the fixed seat 100 and the first mounting through-hole 630 is provided in the rotating seat 200, the head of the first connecting threaded bolt abuts against the rotating seat 200. When the first threaded hole 620 is provided in the rotating seat 200 and the first mounting through-hole 630 is provided in the fixed seat 100, the head of the first connecting bolt 610 abuts against the fixed seat 100. Part of the first connecting bolt 610 is located within the first mounting through-hole 630. Due to the relatively large size of the first mounting through-hole 630, the first connecting bolt 610 has a certain amount of play within the first mounting through-hole 630. Even if the rotating seat 200 rotates relative to the fixed seat 100 and the relative positions of the first threaded hole 620 and the first mounting through-hole 630 change, the first threaded hole 620 can still be aligned with the first mounting through-hole 630 for the first connecting bolt 610 to pass through.

[0037] Since the rotating seat 200 and the fixed seat 100 are in rotational fit, as the rotating seat 200 rotates, the distance between the first threaded hole 620 and the first mounting through-hole 630 will change. Even when fixed between the rotating seat 200 and the fixed seat 100 using the first connecting bolt 610, the first connecting bolt 610 can only prevent the distance between the first threaded hole 620 and the first mounting through-hole 630 from increasing. Refer to Figure 7 As shown, if the rotating seat 200 rotates downward towards Figure 7 the distance between the first threaded hole 620 and the first mounting through-hole 630 needs to increase. However, both ends of the first connecting bolt 610 are fixed and the first connecting bolt 610 cannot be stretched. Therefore, the first connecting bolt 610 can prevent the rotating seat 200 from rotating. If the rotating seat 200 rotates towards Figure 7When rotating upward, the distance between the first threaded hole 620 and the first mounting through hole 630 will be shortened. When the rotating seat 200 rotates, it will drive the first connecting bolt 610 to move, causing the head of the first connecting bolt 610 to move away from the fixed seat 100, and the first connecting bolt 610 cannot prevent the rotating seat 200 from rotating. In this regard, the second connecting component can be used to further fix the rotating seat 200 and the fixed seat 100.

[0038] The second connecting bolt 640 is threadedly connected to the second threaded hole 650, and the end of the second connecting bolt 640 abuts against the fixed seat 100 or the rotating seat 200 corresponding to the first threaded hole 620. If the first threaded hole 620 is provided on the fixed seat 100, the second connecting bolt 640 abuts against the fixed seat 100. If the first threaded hole 620 is provided on the rotating seat 200, the second connecting bolt 640 abuts against the rotating seat 200.

[0039] Reference Figure 7 As shown, if the rotating seat 200 has a tendency to rotate upward Figure 7 However, since the second connecting bolt 640 abuts against the rotating seat 200, the distance between the rotating seat 200 and the fixed seat 100 cannot be reduced. Therefore, the second connecting bolt 640 can prevent the rotating seat 200 from rotating. The first connecting component and the second connecting component are cooperatively arranged to improve the connection stability between the rotating seat 200 and the fixed seat 100, thereby ensuring the support stability of the follower wheel 500 for the welding cylinder 900.

[0040] In some preferred embodiments, there are two sets of first connecting components. The two sets of first connecting components are respectively located on both sides of the second connecting component, and the second connecting component and the two sets of first connecting components are distributed along the axial direction of the first rotating shaft 300. Refer to Figure 7 As shown, the connection stability between the rotating seat 200 and the fixed seat 100 is improved, and the situation that the rotating seat 200 is inclined or deformed relative to the first rotating shaft 300 is avoided.

[0041] In some preferred embodiments, the first threaded hole 620 is provided on the rotating seat 200, and the second threaded hole 650 and the first mounting through hole 630 are provided on the fixed seat 100. The position of the fixed seat 100 is relatively fixed. By providing the second threaded hole 650 and the first mounting through hole 630 on the fixed seat 100, it is more convenient for the operator to adjust the positions of the first connecting bolt 610 and the second connecting bolt 640. In addition, the first threaded hole 620 is provided on the side of the fixed seat 100 close to the welding cylinder 900, and the second threaded hole 650 and the first mounting through hole 630 are farther from the welding cylinder 900 relative to the first threaded hole 620. When passing through the first connecting bolt 610 and the second connecting bolt 640, the operating space on the side farther from the welding cylinder 900 is larger, which is more convenient for operation.

[0042] In addition to the first rotating shaft 300 being provided between the fixed seat 100 and the rotating seat 200, the fixed seat 100 is further provided with a rotating groove 110, and the rotating seat 200 is provided with a rotating protrusion 210. Refer to Figures 1 to 3 As shown, the rotating protrusion 210 is located within the rotating groove 110. When the rotating protrusion 210 rotates around the first rotating shaft 300 following the rotating seat 200, the rotating protrusion 210 slides within the rotating groove 110, and moreover, the rotating protrusion 210 abuts against the inner wall of the rotating groove 110.

[0043] The cooperation between the rotating groove 110 and the rotating groove 110 increases the connection position between the rotating seat 200 and the fixed seat 100 on the one hand, and improves the stability of the rotating structure between the rotating seat 200 and the fixed seat 100. Also, the rotating protrusion 210 is always in tight fit with the rotating groove 110, and the rotating groove 110 supports and limits the rotating protrusion 210, further restricting the rotation trajectory of the rotating seat 200 and ensuring the rotation stability of the rotating seat 200.

[0044] Further preferably, both the rotating protrusion 210 and the rotating groove 110 are provided with two, and the rotating protrusion 210 and the rotating groove 110 are arranged in one-to-one correspondence. The two rotating grooves 110 are respectively located at both ends of the first rotating shaft 300, further improving the connection stability between the rotating seat 200 and the fixed seat 100, making the force on the rotating seat 200 as balanced as possible, and thus improving the support stability of the follower wheel 500 for the welding cylinder 900.

[0045] The embodiment of the present application provides a seam welding device, including the pressure regulating mechanism of the welding equipment provided in any of the above embodiments. In this seam welding device, the position of the welding cylinder 900 can be maintained stable, thereby ensuring the welding effect between the welding cylinder 900 and the welding pad on the spiral filter element.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pressure regulating mechanism for a welding device, applied to a seam welding device, characterized in that, It includes a fixed seat (100), a rotating seat (200), a first rotating shaft (300), a second rotating shaft (400), a follower wheel (500) and a connecting component; The rotating seat (200) is rotatably connected to the fixed seat (100) through the first rotating shaft (300). The follower wheel (500) is coaxially arranged with the second rotating shaft (400). The follower wheel (500) is rotatably connected to the rotating seat (200) through the second rotating shaft (400). The follower wheel (500) can follow the rotating seat (200) to rotate around the first rotating shaft (300) to abut against the circumferential side wall of the welding cylinder (900); The axial direction of the first rotating shaft (300) is parallel to the cross-section of the welding cylinder (900), and the axial direction of the second rotating shaft (400) is arranged to intersect with the plane corresponding to the cross-section of the welding cylinder (900); The connecting component is connected between the rotating seat (200) and the fixed seat (100) to fix the rotating seat (200) to the fixed seat (100).

2. The pressure regulating mechanism of a welding device according to claim 1, characterized in that, The axis of the second rotating shaft (400) is arranged coplanarly with the axis of the welding cylinder (900).

3. The pressure regulating mechanism of a welding device according to claim 1, characterized in that, The adjusting mechanism further includes a follower seat (700). The follower seat (700) is connected between the rotating seat (200) and the follower wheel (500). The follower wheel (500) is rotatably connected to the follower seat (700) through the second rotating shaft (400). The follower seat (700) is rotatably connected to the rotating seat (200) through a third rotating shaft (800). The third rotating shaft (800) is arranged parallel to the first rotating shaft (300).

4. The pressure regulating mechanism of a welding device according to claim 3, characterized in that, The follower seat (700) is provided with a mounting through hole (710), and the follower wheel (500) is mounted in the mounting through hole (710).

5. The pressure regulating mechanism of a welding device according to claim 1, characterized in that, The connecting component includes a first connecting component and a second connecting component. The first connecting component includes a first connecting bolt (610), a first threaded hole (620) and a first mounting through hole (630). The second connecting component includes a second connecting bolt (640) and a second threaded hole (650); One of the fixed seat (100) and the rotating seat (200) is provided with a first threaded hole (620), and the other is provided with a second threaded hole (650) and a first mounting through hole (630). The radial dimension of the first mounting through hole (630) is larger than the radial dimension of the first threaded hole (620); The first connecting bolt (610) passes through the first mounting through hole (630) and is threadedly connected to the first threaded hole (620). The head of the first connecting bolt (610) abuts against the corresponding fixed seat (100) or rotating seat (200) of the first mounting through hole (630). The second connecting bolt (640) is threadedly connected to the second threaded hole (650), and the end of the second connecting bolt (640) abuts against the corresponding fixed seat (100) or rotating seat (200) of the first threaded hole (620).

6. The pressure regulating mechanism of a welding device according to claim 5, characterized in that, There are two sets of the first connection components, and the two sets of the first connection components are respectively located on both sides of the second connection component, and the second connection component and the two sets of the first connection components are distributed along the axial direction of the first rotating shaft (300).

7. The pressure regulating mechanism of a welding device according to claim 5, characterized in that, The first threaded hole (620) is arranged on the rotating seat (200), the second threaded hole (650) and the first mounting through hole (630) are arranged on the fixed seat (100), and the first threaded hole (620) is located on the side of the fixed seat (100) close to the welding cylinder (900).

8. The pressure regulating mechanism of a welding device according to claim 1, characterized in that, The fixed seat (100) is provided with a rotating groove (110), the rotating seat (200) is provided with a rotating protrusion (210), the rotating protrusion (210) is located in the rotating groove (110), and when the rotating protrusion (210) rotates around the first rotating shaft (300), the rotating protrusion (210) slides in the rotating groove (110) and abuts against the inner wall of the rotating groove (110).

9. The pressure regulating mechanism of a welding device according to claim 8, characterized in that, There are two rotating protrusions (210) and two rotating grooves (110), the rotating protrusions (210) and the rotating grooves (110) are arranged in one-to-one correspondence, and the two rotating grooves (110) are respectively located at both ends of the first rotating shaft (300).

10. A seam welding device, characterized in that, A pressure regulating mechanism of the welding equipment according to any one of claims 1-9 is included.

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