Welding device
Through the combined structure of the adjusting parts and the limiting parts, the problem of insufficient welding depth caused by welding head wear is solved, the welding quality and production efficiency are improved, and the workpiece scrapping rate is reduced.
Patent Information
- Application Number
- CN202422567310.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The welding head wears during the working process, resulting in insufficient welding depth, affecting the welding quality.
By setting a combined structure of the adjusting part and the limiting part, the stop position of the welding head is adjusted, the wear amount is compensated, and the welding depth and quality are improved.
It improves welding quality and stability, reduces the scrap rate of workpieces, and improves production efficiency and equipment operation stability.
Smart Images
Figure CN223250888U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of welding technology, and in particular to a welding device. Background Art
[0002] A related art provides a welding device, which drives a welding head to move to a workpiece position through a driving assembly to weld the workpiece.
[0003] However, the welding head in the related art wears out during operation. Therefore, when the driving assembly stops driving the welding head, the welding head does not reach the preset stop position, resulting in insufficient welding strength of the welding head to the workpiece, causing low welding quality of the workpiece.
[0004] For example, when the welding head uses puncture welding to weld the workpieces, the welding head needs to pass through one of the workpieces and extend into the other workpiece. However, due to wear of the welding head, the welding depth of the welding head into the workpiece is insufficient, affecting the welding quality of the workpieces. Utility Model Content
[0005] The present application provides a welding device to solve the problem of how to improve the welding quality of workpieces.
[0006] An embodiment of the present application provides a welding device, comprising a welding head, a drive assembly, a first limiter, a second limiter, an adjusting member, and a top screw. The drive assembly is transmission-connected to the welding head to drive the welding head to move along a first direction. The first limiter is connected to the drive assembly. The second limiter is spaced apart from the first limiter along the first direction. The adjusting member comprises a screw and a bolt head, the screw being threadedly connected to the first limiter and capable of abutting against the second limiter along the first direction, and the bolt head being connected to the screw. The top screw is threadedly connected to the bolt head and capable of moving relative to the bolt head along the first direction until it abuts against the first limiter.
[0007] In the aforementioned welding device, the adjusting member is movable relative to the first stopper in a first direction, thereby adjusting the distance between the adjusting member and the second stopper. After adjustment, the adjusting member can be fixed relative to the first stopper using a set screw. When the adjusting member abuts the second stopper, the welding head stops moving. Therefore, by adjusting the adjusting member, the position of the welding head relative to the workpiece during welding can be changed, thereby compensating for insufficient welding depth caused by welding head wear and other factors, thereby improving the welding quality of the workpiece.
[0008] In one embodiment, the welding device further includes a measuring member, which is configured to display a distance that the adjusting member moves relative to the first limiting member along the first direction.
[0009] In one embodiment, the measuring member includes a scale plate, which is disposed on a side of the first stop member proximate to the bolt head along the first direction. The scale plate is coaxially disposed with the adjusting member and includes circumferentially arranged scales. A pointer corresponding to the scales is disposed on the bolt head.
[0010] In one embodiment, an end of the screw distal from the second stopper extends beyond a side of the first stopper distal from the second stopper and is connected to the bolt head. The welding device further includes a locking member threadedly connected to the screw and disposed between the first stopper and the second stopper to lock the first stopper between the jackscrew and the locking member.
[0011] In one embodiment, a first operating hole is provided on a side of the bolt head away from the screw rod for threadably adjusting the relative position of the adjusting member and the first limiting member. A second operating hole is provided on an end of the top screw away from the first limiting member for adjusting the relative position of the top screw and the bolt head.
[0012] In one embodiment, the driving assembly includes a fixed seat and a driving member, wherein the driving member is movably disposed on the fixed seat along a first direction and is connected to the welding head. A first limiting member is connected to the driving member. A second limiting member is connected to the fixed seat.
[0013] In one embodiment, the first limiting member is connected to the outer side of the driving member, and the second limiting member is connected to the outer side of the fixing seat.
[0014] In one embodiment, the welding device further includes a slider and a slide rod. The slide rod is connected to a fixed base and extends along a first direction. The slider is slidably connected to the slide rod along the first direction, one side of the slider along the second direction is connected to the driving member, and the other side of the slider along the second direction is connected to the welding head, wherein the second direction is perpendicular to the first direction.
[0015] In one embodiment, the fixing base includes a first fixing plate, a second fixing plate, and a support member. The first fixing plate is disposed at one end of the support member along a first direction. The second fixing plate is disposed at the other end of the support member along the first direction, the second fixing plate being disposed opposite the first fixing plate along the first direction and connected to the second stopper. The sliding rod is connected between the first and second fixing plates.
[0016] In one embodiment, the welding device further includes an ultrasonic transducer connected between the driving assembly and the welding head. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 This is a front view of a welding device in one embodiment of the present application.
[0019] Figure 2 for Figure 1 Side view of the welding apparatus in the illustrated embodiment.
[0020] Figure 3 for Figure 1 A partial structural side view of the welding device in the illustrated embodiment.
[0021] Figure 4 for Figure 1 Top view of the welding device in the illustrated embodiment.
[0022] Figure 5 for Figure 1 A top view of a portion of the welding device in the illustrated embodiment.
[0023] Description of main component symbols:
[0024] Welding device 100
[0025] Welding head 10
[0026] Drive assembly 20
[0027] Fixed seat 21
[0028] First fixing plate 211
[0029] Second fixing plate 212
[0030] Support 213
[0031] Driving member 22
[0032] Guide rod 23
[0033] First limiting member 30
[0034] Second limiting member 40
[0035] Adjustment member 50
[0036] Screw 51
[0037] Bolt head 52
[0038] First operation hole 52a
[0039] Pointer 521
[0040] Top screw 60
[0041] Second operation hole 60a
[0042] Locking member 70
[0043] Measuring piece 80
[0044] Dial 81
[0045] Slider 91
[0046] Slider 92
[0047] Ultrasonic transducer 110
[0048] Fixing 120
[0049] Robot fixing block 130
[0050] First direction A
[0051] Second direction B
[0052] The following specific implementation methods will further illustrate this application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0054] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered therein. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered therein. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be an element centered therein. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" as used herein includes any and all combinations of one or more of the relevant listed items.
[0056] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.
[0057] Example
[0058] Figure 1 1 is a front view of a welding device 100 according to an embodiment of the present application; Figure 2 for Figure 1 A side view of the welding apparatus 100 in the illustrated embodiment; Figure 3 for Figure 1 A partial structural side view of the welding device 100 in the illustrated embodiment.
[0059] See also Figures 1 to 3 An embodiment of the present application provides a welding device 100 , including a welding head 10 , a driving assembly 20 , a first limiter 30 , a second limiter 40 , an adjusting member 50 and a top screw 60 .
[0060] The drive assembly 20 is drivingly connected to the welding head 10 to drive the welding head 10 to move in the first direction A. The first stopper 30 is connected to the drive assembly 20, and the second stopper 40 is spaced apart from the first stopper 30 in the first direction A. The adjustment member 50 includes a screw 51 and a bolt head 52. The screw 51 is threadedly connected to the first stopper 30 and can abut against the second stopper 40 in the first direction A. The bolt head 52 is connected to the screw 51. The jackscrew 60 is threadedly connected to the bolt head 52 and can move relative to the bolt head 52 in the first direction A until it abuts against the first stopper 30.
[0061] The welding device 100 is provided with a drive assembly 20 to drive the welding head 10 to move along a first direction A to the workpiece position. The adjusting member 50 is connected to the drive assembly 20 via a first stop member 30, so that the adjusting member 50 can move together with the welding head 10 under the drive of the drive assembly 20. When the adjusting member 50 abuts against the second stop member 40, the welding head 10 stops moving. If the welding head 10 is in the stop position at this time, the cooperation between the adjusting member 50 and the second stop member 40 can improve the control accuracy of the stop position of the welding head 10, thereby improving the welding quality of the workpiece and reducing the accuracy requirements of the driving stroke of the drive assembly 20. The drive assembly 20 can drive the welding head 10 to move from the initial position along the first direction A to the stop position. The driving stroke of the drive assembly 20 refers to the distance between the stop position and the initial position.
[0062] Because the screw 51 is threadedly connected to the first stopper 30, the adjusting member 50 can be moved relative to the first stopper 30 in the first direction A, thereby adjusting the distance between the adjusting member 50 and the second stopper 40. Therefore, when the drive assembly 20 and the welding head 10 are in the initial position, the position of the adjusting member 50 relative to the first stopper 30 can be adjusted to change the position of the welding head 10 relative to the workpiece when the adjusting member 50 and the second stopper 40 abut against each other, thereby improving the welding quality of the workpiece. For example, when the welding head 10 is worn, before welding, the adjusting member 50 can be moved relative to the first stopper 30, away from the second stopper 40, to compensate for the wear of the welding head 10 and avoid insufficient welding strength of the welding head 10. It can be understood that the welding device 100 can be applied to a variety of welding processes and improve the welding quality of the workpiece. For example, when the welding device 100 adopts puncture welding on the workpiece, the two workpieces are stacked along the first direction A. During welding, the welding head 10 passes through one of the workpieces and then extends into the other workpiece. The depth of the welding head 10 extending into the other workpiece is the welding depth. By adjusting the adjusting member 50, the stop position of the welding head 10 can meet the requirements of the welding depth, thereby ensuring sufficient welding strength and improving the welding quality.
[0063] By setting the top screw 60, after the position of the adjusting member 50 relative to the first limiting member 30 is adjusted, the top screw 60 can be screwed to move the top screw 60 relative to the bolt head 52 along the first direction A until it is against the first limiting member 30, so that the adjusting member 50 is fixed relative to the first limiting member 30 after adjustment.
[0064] Figure 4 for Figure 1 A top view of the welding device 100 in the illustrated embodiment; Figure 5 for Figure 1 A top view of a portion of the welding device 100 in the illustrated embodiment.
[0065] In some embodiments, as Figures 3 to 5 As shown, the welding device 100 further includes a measuring member 80, which is configured to display the distance the adjusting member 50 moves relative to the first stop member 30 along the first direction A. Therefore, the adjusting member 50 can be adjusted based on the distance displayed by the measuring member 80, making the adjusting member 50 easier to adjust and facilitating improved adjustment accuracy of the adjusting member 50.
[0066] In some embodiments, combined Figures 3 to 5As shown, the measuring member 80 includes a scale plate 81, which is arranged on the side of the first stopper 30 near the bolt head 52 along the first direction A. The scale plate 81 is coaxial with the adjusting member 50 and includes scales arranged along the circumference. The bolt head 52 is provided with a pointer 521 corresponding to the scale. In this way, when in use, the adjusting member 50 can be screwed until the pointer 521 points to the scale corresponding to the adjustment requirement. For example, Figure 5 As shown, the scale can correspond to the wear of the welding head 10. When the welding head 10 is not worn, the pointer 521 can be made to point to the 0.00 mm scale. When the welding head 10 is worn, the corresponding scale can be selected according to the wear of the welding head 10 so that the adjustment distance of the adjustment member 50 is equal to the wear of the welding head 10. During operation, the adjustment member 50 is first screwed in the initial position until the pointer 521 points to the scale corresponding to the wear of the welding head 10. For example, when the wear of the welding head 10 is 0.80 mm, the pointer 521 can be made to point to the 0.80 mm scale in the initial position. The adjustment member 50 is then fixed relative to the first limit member 30 by the top screw 60. Then, the driving assembly 20 drives the welding head 10 and the adjustment member 50 to move together until the adjustment member 50 abuts against the second limit member 40.
[0067] Optionally, the scale unit on the dial 81 is 0.05 mm, so that the adjustment accuracy of the adjusting member 50 along the first direction A is 0.05 mm, thereby enabling the adjusting member 50 to have a higher adjustment accuracy. In other embodiments, the scale unit on the dial 81 may also be set in other ways according to the requirements for adjustment accuracy, which is not limited here.
[0068] In some embodiments, as Figure 2 and Figure 3 As shown, one end of the screw rod 51 away from the second stopper 40 extends out of the side of the first stopper 30 away from the second stopper 40 and is connected to the bolt head 52. The welding device 100 also includes a locking member 70 (e.g., a nut) threadedly connected to the screw rod 51 and disposed between the first stopper 30 and the second stopper 40 to lock the first stopper 30 between the top screw 60 and the locking member 70. By providing the locking member 70, after the position of the adjusting member 50 relative to the first stopper 30 is adjusted, the locking member 70 can be locked to the side of the first stopper 30 away from the top screw 60, thereby more reliably fixing the adjusting member 50 relative to the first stopper 30 and preventing the adjusting member 50 from loosening relative to the first stopper 30, thereby further improving the accuracy of controlling the stop position of the welding head 10 and ensuring welding stability. The bolt head 52 and the top screw 60 are located on the side of the first limiting member 30 away from the second limiting member 40, so that there is a large operating space at the position of the bolt head 52 and the top screw 60, which is convenient for adjustment.
[0069] During use, when the position of the adjusting member 50 relative to the first stopper 30 needs to be adjusted, the locking member 70 is first loosened, the jackscrew 60 is then loosened, and the adjusting member 50 is then screwed to adjust. After the adjustment is completed, the jackscrew 60 is tightened against the first stopper 30 and the locking member 70 is tightened. Optionally, the jackscrew 60 can be an M3 jackscrew, the adjusting member 50 can be an M8 bolt, the screw rod 51 has a length of 80 mm, a pitch of 1.0 mm, and a thread length of 50 mm.
[0070] In some embodiments, as Figure 3 and Figure 5 As shown, a first operating hole 52a is defined on the side of the bolt head 52 away from the screw rod 51 for threadedly adjusting the relative position of the adjusting member 50 and the first stopper 30. A second operating hole 60a is defined on the end of the top screw 60 away from the first stopper 30 for adjusting the relative position of the top screw 60 and the bolt head 52. During use, a tool such as a screwdriver can be inserted into the first operating hole 52a or the second operating hole 60a to tighten the bolt head 52 or the top screw 60. In this embodiment, both the first operating hole 52a and the second operating hole 60a are hexagon socket holes.
[0071] In some embodiments, combined Figure 1 and Figure 2 As shown, the drive assembly 20 includes a fixed base 21 and a drive member 22. The drive member 22 is movably disposed on the fixed base 21 along a first direction A and is connected to the welding head 10. A first stopper 30 is connected to the drive member 22, and a second stopper 40 is connected to the fixed base 21. In this way, the drive member 22 can drive the welding head 10, the first stopper 30, and the adjustment member 50 to move relative to the fixed base 21 and the second stopper 40. The second stopper 40 is fixed relative to the fixed base 21.
[0072] Alternatively, as Figure 1 As shown, the driving member 22 can be a cylinder, and the fixed seat 21 is further provided with a guide rod 23. The cylinder is movably mounted on the guide rod 23 along the first direction A. For example, the driving member 22 and the guide rod 23 can constitute a double-rod cylinder. When in use, the cylinder moves toward the side close to the second limiter 40 under the set air pressure. It should be noted that the movement of the cylinder is affected by the air pressure of the cylinder, and the movement speed of the cylinder is relatively fast, which makes the driving stroke of the cylinder difficult to control and the error is large. Therefore, in order to achieve higher control accuracy of the driving stroke of the cylinder in the related art, it is necessary to increase the air pressure requirement of the cylinder. In the above embodiment, the welding head 10 is limited by the abutment of the adjusting member 50 and the second limiter 40, which reduces the air pressure requirement of the cylinder, makes the welding device 100 run stably, and reduces the scrap rate of the workpiece, thereby improving production efficiency.
[0073] A related art invention provides a welding device that uses an electronic ruler to measure the drive stroke of a drive assembly so that the drive assembly and welding head can be limited based on the measurement results of the electronic ruler. However, due to the high welding speed and short welding time of the welding head, and the slow feedback of the electronic circuit connected to the electronic ruler, the welding head can easily weld too deep or too shallow, resulting in welding failure, and an increased scrap rate of workpieces during production. In addition, because the electronic ruler measures the drive stroke of the cylinder using a non-contact method, it is limited by the cylinder drive stroke, and the cylinder gas source control reaction time is long, which can easily cause welding failure due to excessive depth, resulting in scrapped workpieces and reduced production efficiency. In the above embodiment, because the adjustment member 50 and the second limit member 40 limit the welding head 10 through a mechanical structure, and the adjustment distance of the adjustment member 50 is measured by a mechanical structure, the welding device 100 is low in cost, easy to implement, has no risk of electromagnetic interference, is not affected by fluctuations in electrical components, has stable performance, and is convenient for mass production.
[0074] In some embodiments, combined Figure 1 and Figure 2 As shown, the first limit member 30 is connected to the outside of the driving member 22, and the second limit member 40 is connected to the outside of the fixing seat 21, so that the first limit member 30 and the second limit member 40 are respectively located on the outside of the driving assembly 20, thereby facilitating the operation of the adjusting member 50, the top screw 60 and the locking member 70. When the driving member 22 is a cylinder, the first limit member 30 is connected to the outside of the cylinder wall. Optionally, the first limit member 30 and the second limit member 40 can both be metal blocks (such as aluminum blocks). In one embodiment, the height dimension of the first limit member 30 and the second limit member 40 along the first direction A is 20 mm, and the length and width dimensions of the first limit member 30 and the second limit member 40 are 50 mm, respectively.
[0075] In some embodiments, as Figure 1 As shown, the welding device 100 further includes a slider 91 and a slide bar 92. The slide bar 92 is connected to the fixed base 21 and extends along a first direction A. The slider 91 is slidably connected to the slide bar 92 along the first direction A. One side of the slider 91 along the second direction B is connected to the driving member 22, and the other side of the slider 91 along the second direction B is connected to the welding head 10. The second direction B is perpendicular to the first direction A. In this way, the driving member 22 drives the welding head 10 to move along the first direction A via the slider 91. The provision of the slider 91 and the slide bar 92 improves the smoothness of the movement of the driving member 22 and the welding head 10 along the first direction A, thereby improving the displacement accuracy of the welding head 10 along the first direction A.
[0076] In some embodiments, as Figure 1As shown, the fixing base 21 includes a first fixing plate 211, a second fixing plate 212, and a support member 213. The first fixing plate 211 is disposed at one end of the support member 213 along the first direction A, and the second fixing plate 212 is disposed at the other end of the support member 213 along the first direction A. The second fixing plate 212 is disposed opposite the first fixing plate 211 along the first direction A, and the second fixing plate 212 is connected to the second stopper 40. The sliding rod 92 is connected between the first fixing plate 211 and the second fixing plate 212, making the welding device 100 compact and facilitating a reduction in the space occupied by the welding device 100.
[0077] In some embodiments, as Figure 1 As shown, the support member 213 is connected to the robot fixing block 130 .
[0078] In some embodiments, the welding device 100 further includes an ultrasonic transducer 110 , which is connected between the drive assembly 20 and the welding head 10 . The ultrasonic transducer 110 is configured to convert input electrical energy into mechanical power (i.e., ultrasonic waves). Alternatively, the ultrasonic transducer 110 is connected between the slider 91 and the welding head 10 .
[0079] In some embodiments, as Figure 1 and Figure 2 As shown, the welding device 100 also includes a fixing member 120, which is connected to the side of the slider 91 away from the driving member 22 along the second direction B, and the fixing member 120 is connected to the ultrasonic transducer 110 on the side close to the second limit member 40 along the first direction A. The ultrasonic transducer 110 is connected to one end of the welding head 10 on the side away from the fixing member 120 along the first direction A, and the other end of the welding head 10 is used to contact the workpiece.
[0080] When the welding device 100 is in use and there is no need to adjust the position of the adjustment member 50, the driving member 22 and the welding head 10 are first placed in the initial position. The driving member 22 then drives the welding head 10 and the adjustment member 50 to move together in the first direction A until the adjustment member 50 abuts against the second limit member 40, causing the welding head 10 to stop moving. When the welding head 10 uses penetration welding, two workpieces are stacked along the first direction A. When the welding head 10 moves to a side surface of one of the workpieces close to the welding head 10, the welding head 10 emits ultrasonic waves to begin welding. The driving member 22 continues to drive the welding head 10 along the first direction A toward the other workpiece, causing the welding head 10 to extend into the other workpiece and continue welding until the adjustment member 50 moves to abut against the second limit member 40, causing the welding head 10 to stop moving. At this point, the welding head 10 is in the stopped position. When the welding time of the welding head 10 reaches the set welding time, the welding head 10 stops welding the workpieces, and welding ends.
[0081] When the position of the adjusting member 50 needs to be adjusted, for example, when the welding head 10 is worn, in the initial position, first loosen the locking member 70, then loosen the top screw 60, and then turn the adjusting member 50 according to the adjustment requirements to rotate the pointer 521 to the scale corresponding to the adjustment requirement. Then, tighten the top screw 60 and the locking member 70. This facilitates adjustment and saves time, reduces debugging difficulty, and achieves high adjustment accuracy. When the welding head 10 needs to be replaced due to excessive wear, it is also convenient to adjust the adjusting member 50 to meet the welding requirements. The welding device 100 can also be used to weld different workpieces. When the workpieces have different dimensions along the first direction A, the welding depth can be maintained by adjusting the adjusting member 50 without replacing the welding head 10.
[0082] Therefore, the welding device 100 provided in this embodiment utilizes ultrasonic welding, offering high welding strength, easy operation, and energy conservation, making it suitable for products requiring both high welding strength and high surface quality. Furthermore, the welding device 100 is easily adjustable, requiring minimal operator skill and requiring minimal adjustment time. This results in stable mass production, low workpiece scrap rates, and high production efficiency. Its robust structure and simplified commissioning reduce welding commissioning cycles, minimize the consumption of welding commissioning components, conserve commissioning resources for new projects, and contribute to improved mass production stability.
[0083] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application should not depart from the spirit and scope of the technical solutions of the present application.
Claims
1. A welding device, characterized in that: include: Welding head; A driving assembly, drivingly connected to the welding head to drive the welding head to move along a first direction; a first limiting member connected to the driving assembly; a second limiting member, spaced apart from the first limiting member along the first direction; an adjusting member, comprising a screw and a bolt head, wherein the screw is threadedly connected to the first limiting member and can abut against the second limiting member along the first direction, and the bolt head is connected to the screw; A top screw is threadedly connected to the bolt head and can move relative to the bolt head along the first direction until it abuts against the first limiting member.
2. The welding device according to claim 1, characterized in that The welding device further includes a measuring member configured to display a distance that the adjusting member moves relative to the first limiting member along the first direction.
3. The welding device according to claim 2, characterized in that The measuring member includes a scale plate, which is provided on a side of the first limiting member close to the bolt head along the first direction, the scale plate is coaxially arranged with the adjusting member, and the scale plate includes scales arranged along the circumferential direction; A pointer corresponding to the scale is provided on the bolt head.
4. The welding device according to claim 1, characterized in that One end of the screw rod away from the second limiting member extends out from a side of the first limiting member away from the second limiting member and is connected to the bolt head; The welding device further includes a locking member, which is threadedly connected to the screw and disposed between the first limiting member and the second limiting member to lock the first limiting member between the top screw and the locking member.
5. The welding device according to claim 4, characterized in that A first operating hole is provided on a side of the bolt head away from the screw rod, for operating to adjust the relative position of the adjusting member and the first limiting member by threading; A second operating hole is provided at one end of the top screw away from the first limiting member, for operating to adjust the relative position of the top screw and the bolt head.
6. The welding device according to claim 1, characterized in that The driving assembly includes a fixed seat and a driving member, wherein the driving member is movably provided on the fixed seat along the first direction, and the driving member is connected to the welding head; The first limiting member is connected to the driving member; The second limiting member is connected to the fixing seat.
7. The welding device according to claim 6, characterized in that The first limiting member is connected to the outer side of the driving member, and the second limiting member is connected to the outer side of the fixing seat.
8. The welding device according to claim 6, characterized in that The welding device also includes a slider and a slide bar; The sliding rod is connected to the fixing seat, and the sliding rod extends along the first direction; The slider is slidably connected to the slide rod along the first direction, the slider is connected to the driving member on one side along the second direction, and the slider is connected to the welding head on the other side along the second direction, wherein the second direction is perpendicular to the first direction.
9. The welding device according to claim 8, characterized in that The fixing seat includes a first fixing plate, a second fixing plate and a support member; The first fixing plate is provided at one end of the support member along the first direction; The second fixing plate is provided at the other end of the support member along the first direction, the second fixing plate and the first fixing plate are arranged opposite to each other along the first direction, and the second fixing plate is connected to the second limiting member; The sliding rod is connected between the first fixing plate and the second fixing plate.
10. The welding device according to claim 1, wherein: The welding device further includes an ultrasonic transducer connected between the driving assembly and the welding head.