Pad adjusting base and roll welding device

Abstract

The utility model provides a bonding pad adjusting base and a roll welding device, and belongs to the technical field of welding equipment. The adjusting base comprises a fixed base, a rotating base, a first rotating shaft and a plurality of connecting assemblies; the rotating base is used for installing a bonding pad assembly, the rotating base and the fixed base are overlapped, the first rotating shaft is connected between the rotating base and the fixed base, and the rotating base can rotate relative to the fixed base with the axis of the first rotating shaft as the rotating axis. A welding electrode of a bonding pad of a bonding pad assembly installed on the rotating base is located on the axis of the first rotating shaft. The connecting assemblies are distributed around the first rotating shaft and connected between the rotating base and the fixed base so that the rotating base can be fixed to the fixed base. The rotary base is in running fit with the fixed base, and the position of the bonding pad assembly is adjusted by controlling rotation of the rotary base, so that the position of the bonding pad and the welding angle are adjusted to adapt to products with different screw pitches, and the welding effect of the products is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and particularly relates to a pad adjusting base and a seam welding device. Background Art

[0002] In the related art, a support skeleton for providing support and a flexible filter membrane are spirally wound around each other, and a rigid spiral filter element is jointly formed by the spiral support 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 support skeleton and the filter membrane, the support 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 support 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 support skeleton and the filter membrane.

[0003] However, during the welding process, for products with different pitches, the welding positions are different. Therefore, it is necessary to adjust the relative positions of the welding pad and the welding cylinder to ensure the welding effect of the products. Summary of the Utility Model

[0004] The purpose of this application is to provide a pad adjusting base and a seam welding device to solve the above 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 pad adjusting base, which is applied to a seam welding device and includes a fixed base, a rotating base, a first rotating shaft, and a plurality of connecting components; the rotating base is used to install a welding pad assembly, the rotating base and the fixed base are overlapped, the first rotating shaft is connected between the rotating base and the fixed base, the rotating base can rotate relative to the fixed base with the axis of the first rotating shaft as the rotation axis, and the welding electrode of the welding pad of the welding pad assembly installed on the rotating base is located on the axis of the first rotating shaft; the plurality of connecting components are distributed around the first rotating shaft, and the connecting components are connected between the rotating base and the fixed base to fix the rotating base to the fixed base.

[0007] In the second aspect, an embodiment of this application provides a seam welding device, which includes the pad adjusting base provided in the first aspect embodiment.

[0008] The beneficial effects of this application are:

[0009] In this application, the rotating base is used to mount the pad assembly. The rotating base is rotationally matched with the fixed base. By controlling the rotation of the rotating base, the position of the pad assembly is adjusted, thereby adjusting the position of the pads in the pad assembly and the welding angle to adapt to products with different pitches and ensure the welding effect of the products. Moreover, the welding electrodes of the pads are arranged on the axis of the first rotating shaft. During the process of adjusting the position of the pads, the welding electrodes can remain stable, thereby quickly realizing the fine adjustment of the welding angle and improving the adjustment speed of the welding angle. 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 also be obtained based on these drawings.

[0011] Figure 1 is the overall structural schematic diagram of the adjusting base provided by some embodiments of this application;

[0012] Figure 2 is the matching schematic diagram of the adjusting base and the welding cylinder provided by some embodiments of this application;

[0013] Figure 3 is the cross-section of the adjusting base provided by some embodiments of this application Figure 1 ;

[0014] Figure 4 is the cross-section of the adjusting base provided by some embodiments of this application Figure 2 ;

[0015] Figure 5 is the detail view of part A of this application regarding Figure 4 ;

[0016] Figure 6 is the disassembled schematic diagram of the adjusting base provided by some embodiments of this application;

[0017] Figure 7 is the detail view of part B of this application regarding Figure 6 ;

[0018] Figure 8 is the structural schematic diagram of the pressing member provided by some embodiments of this application.

[0019] In the figure: 100 - fixed base, 110 - adjustment groove, 200 - rotating base, 210 - first through hole, 220 - rotating groove, 230 - transition surface, 300 - first rotating shaft, 310 - first clamping shaft, 320 - first fixed shaft, 410 - first connecting bolt, 420 - strip hole, 430 - first threaded hole, 440 - second connecting bolt, 450 - pressing member, 451 - pressing portion, 451a - mounting through hole, 452 - clamping portion, 452a - second clamping shaft, 452b - second fixed shaft, 460 - second threaded hole, 500 - rotating clearance, 600 - pad assembly, 710 - welding cylinder, 720 - support frame. Detailed implementation manners

[0020] The following description provides many different embodiments or examples for implementing different features of the present utility model. The elements and arrangements described in the following specific examples are only used to concisely express the present utility model, and they are only examples and not intended to limit the present utility model.

[0021] For spiral filter elements with different pitches, the inclination angles of their support frames are different, and the required welding angles are also different. Therefore, in order to ensure the welding effect between the support frame and the filter membrane, it is necessary to correspondingly adjust the positions of the pad and the welding cylinder according to the pitch of the spiral filter element, so as to adjust the welding angle.

[0022] In view of this, the embodiment of the present application provides a pad adjustment base, which is applied to a seam welding device. By rotating the pad, the position of the pad is adjusted to adjust the welding angle. Refer to Figures 1 to 4 As shown, it includes a fixed base 100, a rotating base 200, a first rotating shaft 300 and several connecting components.

[0023] The fixed base 100 is fixedly arranged. Generally, the fixed base 100 is fixed on structures such as the mounting bracket of the seam welding device. The rotating base 200 is used to mount the pad assembly 600. The pad assembly 600 generally includes a pad, a driving structure connected to the pad, and equipment required for welding. The rotating base 200 and the fixed base 100 are overlapped, and the fixed base 100 supports the rotating base 200. The first rotating shaft 300 is connected between the rotating base 200 and the fixed base 100, and the rotating base 200 is rotationally matched with the fixed base 100 through the first rotating shaft 300. The rotating base 200 can rotate relative to the fixed base 100 with the axis of the first rotating shaft 300 as the rotation axis to adjust the position of the pad connected thereto.

[0024] By controlling the rotation of the rotating base 200, the pad mounted on the rotating base 200 can also rotate along with the rotating base 200 to adjust the position, so as to change the relative position between the pad and the welding cylinder 710, adjust the welding angle, and thus adapt to the welding angles of products with different pitches.

[0025] Moreover, the welding electrodes of the pads of the pad assembly 600 connected to the rotating base 200 are located on the axis of the first rotating shaft 300. The welding electrodes are generally located on the circumferential side wall of the pads. The welding electrodes serve as terminals for power input and output on the welding equipment and are key components in the electric welding process. During the electric welding process, by generating arc discharge between the two electrodes, the heat of the arc is used to melt the metal to achieve the purpose of joining the two workpieces.

[0026] Reference Figure 2 As shown, when the seam welding device is in use, the pads cooperate with the welding cylinder 710 and are clamped on both sides of the product to be welded. The welding electrodes of the pads are generally located at the contact position between the pads and the product. The welding cylinder 710 also has welding electrodes, which are located at the contact position between the welding cylinder 710 and the product. The two welding electrodes are respectively located on both sides of the product to be welded. In the embodiment provided in the present application, the product to be welded is a spiral filter element. The spiral filter element is sleeved on the welding cylinder 710 and advances spirally in cooperation with the rotation of the welding cylinder 710. The spiral support skeleton 720 passes through between the welding cylinder 710 and the pads in sequence. Figure 2 Only the support skeleton 720 of the spiral filter element is shown in [reference], and the filter membrane is not shown. The welding electrodes are in contact with the support skeleton 720 to weld the support skeleton 720 and the filter membrane.

[0027] The welding electrodes are located on the axis of the first rotating shaft 300. During the rotation of the rotating base 200, even if the position of the pads changes, the position of the welding electrodes can remain relatively stable. By rotating the pads, the fine adjustment of the welding angle can be quickly achieved, improving the adjustment speed of the welding angle.

[0028] During the production of the spiral filter element, to ensure the welding effect on the spiral filter element, the seam welding device has various structures for adjusting the positions of the pads and the welding cylinder 710, and adjusts the welding position of the spiral filter element from multiple dimensions and multiple directions. The adjustment chassis provided in the embodiment of the present application mainly adjusts the welding angle by rotating the pads on the horizontal plane. Limiting the welding electrodes to be located on the axis of the first rotating shaft 300 can improve the adjustment speed of the welding angle. If the welding electrodes are not on the axis of the first rotating shaft 300, during the rotation of the rotating base 200, the welding electrodes will also rotate around the axis of the first rotating shaft 300, resulting in relatively large changes in the position of the welding electrodes, thereby increasing the adjustment difficulty of the welding angle and causing the operator to be unable to quickly adjust the pads to the appropriate position.

[0029] A plurality of connecting components are distributed around the first rotating shaft 300. The connecting components are connected between the rotating base 200 and the fixed base 100 to fix the rotating base 200 to the fixed base 100, stabilize the rotation angle of the rotating base 200, and ensure the stability of the pad position.

[0030] In some preferred embodiments of the present application, an adjustment groove 110 is provided on the surface of the fixed base 100 close to the rotating base 200. Refer to Figures 1 to 3 and Figure 6 As shown, both ends of the adjustment groove 110 in the length direction penetrate through the fixed base 100 and form openings. Refer to Figure 6 As shown, the rotating base 200 has a first through hole 210 for the first rotating shaft 300 to pass through. Refer to Figure 3 As shown, part of the first rotating shaft 300 is located in the first through hole 210 of the rotating base 200, and part of the first rotating shaft 300 is located in the adjustment groove 110. The first rotating shaft 300 can move in the adjustment groove 110 along the length direction of the adjustment groove 110, and the position of the rotating base 200 is adjusted in the length direction of the adjustment groove 110, increasing the adjustment method of the rotating base 200 and further improving the adjustment flexibility of the pad.

[0031] Moreover, openings are formed at both ends of the adjustment groove 110 in the length direction. The first rotating shaft 300 can move out of the adjustment groove 110 when moving in the adjustment groove 110, separating the rotating base 200 and the fixed base 100, so as to facilitate the maintenance of the pad or the maintenance operation of other structures. The radial dimension of the first rotating shaft 300 is approximately equal to the width dimension of the adjustment groove 110, so that the first rotating shaft 300 can only rotate or move along the length direction of the adjustment groove 110 in the adjustment groove 110, avoiding other moving directions of the first rotating shaft 300, resulting in a change in the position of the rotating base 200 relative to the fixed base 100, thus affecting the position of the pad and the welding effect of the product.

[0032] In some preferred embodiments, refer to Figure 3 As shown, the first rotating shaft 300 includes a first clamping shaft 310 and a first fixed shaft 320 arranged coaxially. The first fixed shaft 320 is fixed in the first through hole 210, and the first fixed shaft 320 is fixedly arranged with the rotating base 200, and the two move synchronously. The first clamping shaft 310 is clamped into the adjustment groove 110, and moreover, the first fixed shaft 320 is rotatably connected to the first clamping shaft 310. Through the rotational cooperation between the first fixed shaft 320 and the first clamping shaft 310, the rotational connection between the rotating base 200 and the fixed base 100 is realized. The first clamping shaft 310 is directly clamped in the adjustment groove 110. During the process of controlling the rotation of the rotating base 200, the first clamping shaft 310 will not rotate relative to the fixed base 100. Therefore, the first clamping shaft 310 will not provide resistance to the rotation of the rotating base 200, and the rotational adjustment of the rotating base 200 can be smoother.

[0033] In some embodiments, the first clamping shaft 310 can be set as a bearing structure, and the first fixed shaft 320 is directly inserted and fixed into the first clamping shaft 310.

[0034] In some embodiments of the present application, with reference to Figures 1 to 6 as shown, the connecting component includes a first connecting component. The first connecting component includes a first connecting bolt 410, a strip-shaped hole 420 provided on the rotating base 200, and a first threaded hole 430 provided on the fixed base 100. The first connecting bolt 410 passes through the strip-shaped hole 420 and is threadedly connected to the first threaded hole 430, and the head of the first connecting bolt 410 abuts against the rotating base 200, thereby fixing the rotating base 200 to the fixed base 100.

[0035] With reference to Figure 5 as shown, there is a rotating gap 500 between the inner wall of the strip-shaped hole 420 and the circumferential side wall of the first connecting bolt 410. The rotating gap 500 can provide a rotating margin for the rotating base 200. After the rotating base 200 rotates relative to the fixed base 100, the position of the strip-shaped hole 420 also changes relative to the first threaded hole 430. However, due to the relatively large size of the strip-shaped hole 420 and the existence of the rotating gap 500, the strip-shaped hole 420 can still be aligned with the first threaded hole 430 after moving, and the first connecting bolt 410 can still pass through the strip-shaped hole 420 and be threadedly connected to the first threaded hole 430. Thus, after the rotation angle of the rotating base 200 changes, the first connecting component can still fix the rotating base 200 to the fixed base 100. The adjustment chassis provided by the embodiments of the present application is mainly used for fine adjustment of the welding angle. Therefore, the size of the moving gap does not need to be too large.

[0036] The strip-shaped hole 420 has a length direction and a width direction, and its length is greater than its width. In some embodiments of the present application, the length direction of the strip-shaped hole 420 can be the same as the length direction of the adjustment groove 110. The strip-shaped hole 420 not only needs to adapt to the rotational movement of the rotating base 200, but also needs to adapt to the translational movement of the rotating base 200 along the length direction of the adjustment groove 110. After the rotating base 200 moves relative to the fixed base 100 along the length direction of the adjustment groove 110, the first connecting bolt 410 can still pass through the strip-shaped hole 420 and the first threaded hole 430 at the same time, and the first connecting component can still fix the rotating base 200 to the fixed base 100.

[0037] In addition, it should be noted that since the strip-shaped holes 420 and the adjustment slots 110 are respectively provided on the rotating base 200 and the fixed base 100, and the rotating base 200 and the fixed base 100 are rotationally engaged with each other, the relative positions of the strip-shaped holes 420 and the adjustment slots 110 will change. In the embodiments of the present application, the length direction of the strip-shaped holes 420 can be the same as the length direction of the adjustment slots 110, which means that when the first connecting bolt 410 is simultaneously connected to the strip-shaped holes 420 and the first threaded holes 430, when the rotating base 200 rotates to one of the rotation angles, at this time, the length direction of the strip-shaped holes 420 is the same as the length direction of the adjustment slots 110.

[0038] The first connecting bolt 410 is in abutting fit with the rotating base 200 through its head, so as to fix the rotating base 200 to the fixed base 100. When it is necessary to adjust the rotation angle of the rotating base 200, only need to loosen the first connecting bolt 410 so that the head of the first connecting bolt 410 is separated from the rotating base 200, then the rotating base 200 can be rotated. At the same time, since the first connecting bolt 410 still passes through the strip-shaped holes 420, the rotating base 200 can be roughly positioned to prevent the rotating base 200 from rotating too much.

[0039] In some specific embodiments of the present application, the ratio of the radius of the first connecting bolt 410 to the length of the rotation gap 500 in the radial direction of the first connecting bolt 410 is less than or equal to 10. The smaller the ratio, the larger the size of the rotation gap 500 and the higher the movement margin of the rotating base 200.

[0040] In some embodiments, the connecting assembly further includes a second connecting assembly, and the second connecting assembly is also used to fix the relative positions of the rotating base 200 and the fixed base 100. Refer to Figures 1 to 3 and Figure 6 As shown, the second connecting assembly includes a second connecting bolt 440, a pressing member 450, and a second threaded hole 460 provided on the rotating base 200. The pressing member 450 includes a pressing portion 451 and a clamping portion 452, both of which are part of the pressing member 450. The pressing portion 451 abuts against the surface of the rotating base 200 facing away from the fixed base 100, and the clamping portion 452 is clamped into the adjustment slot 110, and the position of the clamping portion 452 is restricted by the adjustment slot 110. The pressing portion 451 is also provided with a mounting through hole 451a, the second connecting bolt 440 passes through the mounting through hole 451a and is threadedly connected to the second threaded hole 460, and the head of the second connecting bolt 440 abuts against the pressing member 450, and the radial dimension of the mounting through hole 451a is larger than the radial dimension of the second connecting bolt 440.

[0041] The second connecting bolt 440 presses the pressing part 451 between the rotating base 200 and the head of the second connecting bolt 440. Moreover, since the clamping part 452 is clamped into the adjustment groove 110 and the position of the clamping part 452 is restricted by the side wall of the adjustment groove 110, the pressing part 450 can prevent the rotating base 200 from rotating, thereby fixing the relative positions of the rotating base 200 and the fixed base 100. The size of the mounting through-hole 451a is relatively large, providing a certain amount of rotational allowance for the rotating base 200. In some embodiments, the size of the mounting through-hole 451a can also be substantially the same as the size of the second connecting bolt 440. At the same time, the clamping part 452 is provided as a cylindrical structure, and its diameter is substantially the same as the width dimension of the adjustment groove 110. After the position of the rotating base 200 changes, the clamping part 452 is rotated within the adjustment groove 110, thereby adjusting the position of the pressing part 451 so that the mounting through-hole 451a is aligned with the second threaded hole 460.

[0042] In some preferred embodiments of the present application, as shown in Figures 1 to 3 the figure, a rotating groove 220 is provided on the surface of the rotating base 200 facing away from the fixed base 100. The rotating groove 220 penetrates the circumferential side wall of the rotating base 200 and forms an opening. The pressing part 451 is installed in the rotating groove 220. The side wall of the rotating groove 220 is an arc surface, and the axis corresponding to the arc surface overlaps with the axis of the clamping part 452. The pressing part 451 fits against the side wall and the bottom wall of the rotating groove 220, and the pressing part 451 can rotate around the axis of the clamping part 452, so that the pressing part 451 slides along the side wall of the rotating groove 220.

[0043] The pressing part 451 can slide along the side wall of the rotating groove 220 to adapt to the rotation of the rotating base 200. After the rotating base 200 rotates, the pressing part 451 can still fit against the side wall and the bottom wall of the rotating groove 220. The rotating groove 220 penetrates the circumferential side wall of the rotating base 200 to form an opening, which facilitates the installation of the pressing part 451 into the rotating groove 220 and also facilitates the rotation of the pressing part 451 around the axis of the clamping part 452 within the rotating groove 220.

[0044] At the same time, as shown in Figure 8 the figure, the mounting through-hole 451a is provided in the structure of a strip-shaped hole 420. The length direction of the mounting through-hole 451a extends along any arc, and the center of the circle corresponding to the arc is located on the axis of the clamping part 452. During the rotation of the pressing part 451 around the axis of the clamping part 452, the mounting through-hole 451a also rotates around the axis of the clamping part 452, and the relative positions of the mounting through-hole 451a and the second threaded hole 460 change. Since the length direction of the mounting through-hole 451a extends around the axis of the clamping part 452, even if the mounting through-hole 451a rotates, the rotated mounting through-hole 451a can still communicate with the second threaded hole 460.

[0045] In some preferred embodiments, the structure of the clamping portion 452 is similar to that of the first rotating shaft 300. The clamping portion 452 includes a second clamping shaft 452a and a second fixed shaft 452b that are coaxially arranged. The second fixed shaft 452b is connected between the second clamping shaft 452a and the pressing portion 451. The second clamping shaft 452a is clamped into the adjustment groove 110, and the second fixed shaft 452b is rotatably connected to the second clamping shaft 452a. With such a setting, the rotation of the second fixed shaft 452b and the pressing portion 451 is made smoother. The second clamping shaft 452a can also be a bearing structure, and the second fixed shaft 452b is directly clamped and fixed in the inner ring of the second clamping shaft 452a.

[0046] In some preferred embodiments, referring to Figure 7 As shown, transition surfaces 230 are further provided at both ends of the side wall of the rotation groove 220. The transition surfaces 230 connect the side wall of the rotation groove 220 and the circumferential side wall of the rotation base 200. The transition surfaces 230 can reduce the sharp corners of the rotation base 200. During the installation of the pressing member 450, even if the pressing member 450 accidentally collides with the transition surfaces 230, it is not easy to cause damage to the transition surfaces 230.

[0047] The embodiment of the present application further provides a seam welding device, including the pad adjustment base provided in any of the above embodiments. This seam welding device can adjust the welding angle by rotating the pad, thereby ensuring the welding effect of the product.

[0048] 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 pad adjustment base, applied to a roll welding device, characterized in that It includes a fixed base (100), a rotating base (200), a first rotating shaft (300) and a plurality of connecting components; The rotating base (200) is used to install a pad component (600). The rotating base (200) is arranged overlapping with the fixed base (100). The first rotating shaft (300) is connected between the rotating base (200) and the fixed base (100). The rotating base (200) can rotate relative to the fixed base (100) with the axis of the first rotating shaft (300) as the rotation axis line, and the welding electrodes of the pads of the pad component (600) installed on the rotating base (200) are located on the axis of the first rotating shaft (300); The plurality of connecting components are distributed around the first rotating shaft (300). The connecting components are connected between the rotating base (200) and the fixed base (100) to fix the rotating base (200) to the fixed base (100).

2. The pad adjusting base according to claim 1, characterized in that, An adjustment groove (110) is provided on the surface of the fixed base (100) close to the rotating base (200). Both ends of the adjustment groove (110) in the length direction penetrate through the fixed base (100) and form openings. The rotating base (200) has a first through hole (210) for the first rotating shaft (300) to pass through. Part of the first rotating shaft (300) is located in the first through hole (210), and part of the first rotating shaft (300) is located in the adjustment groove (110). The first rotating shaft (300) can move in the adjustment groove (110) along the length direction of the adjustment groove (110).

3. The pad adjusting base according to claim 2, characterized in that, The connecting component includes a first connecting component. The first connecting component includes a first connecting bolt (410), a strip-shaped hole (420) provided on the rotating base (200) and a first threaded hole (430) provided on the fixed base (100). The first connecting bolt (410) passes through the strip-shaped hole (420) and is threadedly connected to the first threaded hole (430), and the head of the first connecting bolt (410) abuts against the rotating base (200). There is a rotating gap (500) between the inner wall of the strip-shaped hole (420) and the circumferential side wall of the first connecting bolt (410), and the length direction of the strip-shaped hole (420) can be the same as the length direction of the adjustment groove (110).

4. The pad adjusting base according to claim 3, characterized in that, The ratio of the radius of the first connecting bolt (410) to the length of the rotating gap (500) in the radial direction of the first connecting bolt (410) is less than or equal to 10.

5. The pad adjusting base according to claim 2, wherein The connecting component includes a second connecting component. The second connecting component includes a second connecting bolt (440), a pressing member (450) and a second threaded hole (460) provided on the rotating base (200); The pressing member (450) includes a pressing portion (451) and a clamping portion (452). The pressing portion (451) abuts against the surface of the rotating base (200) facing away from the fixed base (100). The clamping portion (452) is clamped into the adjustment groove (110). The pressing portion (451) is further provided with a mounting through hole (451a). The second connecting bolt (440) passes through the mounting through hole (451a) and is threadedly connected to the second threaded hole (460). Moreover, the head of the second connecting bolt (440) abuts against the pressing member (450). The radial dimension of the mounting through hole (451a) is larger than the radial dimension of the second connecting bolt (440).

6. The pad adjusting base according to claim 5, characterized in that, A rotating groove (220) is provided on the surface of the rotating base (200) facing away from the fixed base (100). The rotating groove (220) penetrates through the circumferential side wall of the rotating base (200) and forms an opening. The pressing portion (451) is installed in the rotating groove (220). The side wall of the rotating groove (220) is an arc surface. The axis corresponding to the arc surface overlaps with the axis of the clamping portion (452). The pressing portion (451) fits against the side wall and the bottom wall of the rotating groove (220). Moreover, the pressing portion (451) can rotate around the axis of the clamping portion (452), so that the pressing portion (451) slides along the side wall of the rotating groove (220). The mounting through hole (451a) is a strip-shaped hole structure. The length direction of the mounting through hole (451a) is arranged along an arc. The center of the arc is located on the axis of the clamping portion (452).

7. The pad adjusting base according to claim 6, wherein The clamping portion (452) includes a second clamping shaft (452a) and a second fixed shaft (452b) arranged coaxially. The second fixed shaft (452b) is connected between the second clamping shaft (452a) and the pressing portion (451). The second clamping shaft (452a) is clamped into the adjustment groove (110). The second fixed shaft (452b) is rotatably connected to the second clamping shaft (452a).

8. A pad adjusting base according to claim 6, characterized in that, Transition surfaces (230) are further provided at both ends of the side wall of the rotating groove (220). The transition surfaces (230) connect the side wall of the rotating groove (220) and the circumferential side wall of the rotating base (200).

9. The pad adjusting base according to claim 2, characterized in that, The first rotating shaft (300) includes a first clamping shaft (310) and a first fixed shaft (320) arranged coaxially. The first fixed shaft (320) is fixed to the first through hole (210). The first clamping shaft (310) is clamped into the adjustment groove (110). The first fixed shaft (320) is rotatably connected to the first clamping shaft (310).

10. A seam welding device, characterized in that, Including the pad adjusting base according to any one of claims 1-9.

Images