An automatic welding platform for household appliance shells
By designing an automatic welding platform for home appliance shells, using a combined structure of workpiece fixing plate and limit fixing ring, the welding misalignment problem caused by high temperature during the welding of small-volume electrical shells is solved, and the accurate fine-tuning of welding position and the improvement of welding effect is achieved.
Patent Information
- Application Number
- CN202411930411.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2044-12-26
AI Technical Summary
During the welding process of small-volume processing electrical shells, the welding parts are melted due to high temperatures, which easily leads to dislocation of the connection parts, which leads to welding misalignment, affecting the later processing effect.
An automatic welding platform for home appliance housing is designed, using a combined structure of workpiece fixing plate, connecting spring, workpiece limit hole, limit fixing ring and fixing member. Through the coordination of the connecting spring and limit fixing ring, the position of the workpiece fixing plate is fine-tuned to ensure the accuracy of the welding position.
This platform can effectively avoid welding misalignment, improve welding accuracy and quality, and is suitable for processing parts of different sizes and types, expands the scope of application of welding fixtures, and improves welding efficiency.
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Figure CN119609525B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of welding equipment, in particular to an automatic welding platform for a household appliance shell. Background Art
[0002] Household appliances mainly refer to various electrical and electronic devices used in homes and similar places. They are also called civil appliances and daily appliances. Household appliances free people from heavy, trivial and time-consuming housework, create a more comfortable and beautiful living and working environment that is more conducive to physical and mental health, and provide a variety of cultural and entertainment conditions. They have become a necessity in modern family life.
[0003] In the process of welding some small-volume electrical appliance shells, due to the high temperature, the welding parts of the workpieces will be molten, which can easily cause the connection parts of the workpieces to be misaligned. If the position is not adjusted during the welding process, it is easy to cause welding misalignment, which makes the actual application effect of the later workpieces poor. Summary of the invention
[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic welding platform for household appliance shells.
[0005] An automatic welding platform for a home appliance housing, comprising a workpiece fixing plate, a connecting spring, a workpiece limiting hole, a limiting fixing ring and a fixing piece, wherein the workpiece fixing plate is arranged inside the limiting fixing ring, and a connecting spring is arranged between the workpiece fixing plate and the limiting fixing ring;
[0006] A workpiece limiting hole is provided in the middle of the workpiece fixing plate, and fixing parts are provided on both sides of the workpiece limiting hole on the workpiece fixing plate;
[0007] The workpiece limiting hole member includes a first fixing hole, a second fixing hole and a first plane layer. The first fixing hole is opened at the center of the workpiece fixing plate. The second fixing hole is opened on the workpiece fixing plate and is located on both sides of the first fixing hole and is connected to the first fixing hole. The connecting plane between the first fixing hole and the second fixing hole forms a first plane layer.
[0008] Preferably, a fixed ring is provided inside the limiting fixing ring on one side of the workpiece fixing plate, a fixing rod is provided between the fixing ring and the limiting fixing ring, an adjusting member for adjusting the position of the workpiece fixing plate is provided on the fixing ring, and the adjusting member is located on the inner side of the limiting fixing ring.
[0009] Preferably, the adjusting member comprises a second adjusting bolt and a first movable connecting clip, the second adjusting bolt is rotatably arranged on the fixed ring, and the end of the second adjusting bolt is connected to the workpiece fixing plate through the first movable connecting clip.
[0010] Preferably, the position-limiting fixing rings are provided in multiple groups, the position-limiting fixing rings are fixed in a fixing plate, and the thickness of the fixing plate is smaller than the thickness of the position-limiting fixing rings.
[0011] Preferably, a fixed folding rod is fixed on the fixing plate at the protruding side of the limiting fixing ring, a limiting collar is fixed on the end of the fixed folding rod, and the limiting collar and the workpiece limiting hole in the workpiece fixing plate are on the same horizontal plane.
[0012] Preferably, two groups of the position limiting fixing rings are arranged in parallel, and the two groups of the position limiting fixing rings are arranged in a staggered manner, so that the workpiece fixing plates in the parallel position limiting fixing rings are arranged in a staggered manner;
[0013] A plurality of groups of the position-limiting fixing rings are fixed inside a fixing frame, and a first adjusting bolt for adjusting the position of the position-limiting fixing rings is provided in the fixing frame.
[0014] Preferably, the fixing member includes a fixing block, a third adjusting bolt, a second movable connection card and an abutment limiter;
[0015] The fixing block is fixed on the workpiece fixing plate, and a third adjusting bolt is rotatably connected to the fixing block. The bottom of the third adjusting bolt is connected to the abutment limiter through a second movable connection card.
[0016] Preferably, the abutment and limiting member comprises an arc-shaped fixing plate, an arc-shaped rubber pad and a second plane layer, the arc-shaped rubber pad is bonded to the bottom of the arc-shaped fixing plate, and the bottom ends of the arc-shaped fixing plate and the arc-shaped rubber pad are cut to form the second plane layer.
[0017] Preferably, the workpiece fixing plate is configured as a circular structure, and a plurality of notches are evenly provided on the outer side wall of the workpiece fixing plate.
[0018] Preferably, two fixing plates or two fixing frames are provided, and the two fixing plates or two fixing frames are connected by a U-shaped fixing rod.
[0019] The advantages of the present invention are:
[0020] 1. It can clamp and limit round and square workpieces of different sizes, making the overall application range of the welding fixture wider;
[0021] 2. A connecting spring is provided between the workpiece fixing plate and the limit fixing ring. When the position of the workpiece placed in the workpiece fixing plate is limited, the position of the workpiece fixing plate can be manually adjusted, thereby fine-tuning the position of the workpiece, so that the welding position of the workpiece can be adjusted during the welding process, so that the welding effect of the workpiece is better;
[0022] 3. Multiple workpiece fixing plates are evenly arranged in the fixed frame, which can fix multiple workpieces at one time, so that the workpieces can be compared during the welding process to avoid welding errors. In this way, the welding efficiency can be further improved and the actual application effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the structure of an automatic welding platform for household appliance housings used in the present invention;
[0024] Figure 2 It is a schematic diagram of the structure when the workpiece fixing plate and the limiting fixing ring of the present invention are connected;
[0025] Figure 3 It is a schematic diagram of the structure when the fixed circular ring and the position-limiting fixed ring of the present invention are connected;
[0026] Figure 4 It is a schematic diagram of the structure when the workpiece fixing plate and the fixing ring are connected in the present invention;
[0027] Figure 5 It is a structural schematic diagram of a workpiece limiting hole member of the present invention;
[0028] Figure 6 It is a schematic diagram of the structure when the limiting collar and the fixing plate of the present invention are connected;
[0029] Figure 7 It is a schematic diagram of the structure of the fixing member of the present invention;
[0030] Figure 8 It is a schematic structural diagram of multiple groups of workpiece fixing plates arranged in a fixing frame according to the present invention.
[0031] In the figure: 10, fixed plate; 11, U-shaped fixed rod; 12, fixed folding rod; 13, limiting collar; 20, workpiece fixed plate; 21, notch; 30, fixed ring; 40, connecting spring; 50, fixed rod; 60, workpiece limiting hole; 61, first fixed hole; 62, second fixed hole; 63, first plane layer; 70, limiting fixed ring; 80, adjusting member; 81, second adjusting bolt; 82, first movable connecting card; 90, fixing member; 91, fixing block; 92, third adjusting bolt; 93, second movable connecting card; 94, conflict limiting member; 941, arc-shaped fixed plate; 942, arc-shaped rubber pad; 943, second plane layer; 100, fixing frame; 110, first adjusting bolt. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0034] Example 1
[0035] See also Figure 1-2 , an automatic welding platform for a housing of household appliances, comprising a workpiece fixing plate 20, a connecting spring 40, a workpiece limiting hole 60, a limiting fixing ring 70 and a fixing member 90, wherein the workpiece fixing plate 20 is arranged inside the limiting fixing ring 70, and a connecting spring 40 is arranged between the workpiece fixing plate 20 and the limiting fixing ring 70. Through this structural setting, the workpiece fixing plate 20 can be fine-tuned at any position in the plane direction, so that the workpiece connected to the workpiece fixing plate 20 can be conveniently and timely adjusted in position during the welding process, and the welding effect of the workpiece is better. At the same time, through the setting of the connecting spring 40, the workpiece fixing plate 20 can be buffered and protected. When external vibration affects the limiting fixing ring 70, the user can limit the position of the workpiece fixing plate 20, thereby limiting the workpiece on the workpiece fixing plate 20, avoiding the workpiece from being affected by external vibration, and achieving a better welding effect for the workpiece;
[0036] A workpiece limiting hole 60 is provided in the middle of the workpiece fixing plate 20, and fixing members 90 are provided on both sides of the workpiece limiting hole 60 on the workpiece fixing plate 20;
[0037] like Figure 5 As shown, the workpiece limiting hole 60 includes a first fixing hole 61, a second fixing hole 62 and a first plane layer 63. The first fixing hole 61 is opened at the center of the workpiece fixing plate 20, and the second fixing hole 62 is opened on the workpiece fixing plate 20 and is located on both sides of the first fixing hole 61, and is connected to the first fixing hole 61. The connecting plane between the first fixing hole 61 and the second fixing hole 62 forms the first plane layer 63.
[0038] Specifically, the workpiece passes through the workpiece limiting hole 60 provided on the workpiece fixing plate 20, and the position of the workpiece is limited by the fixing member 90 on the workpiece fixing plate 20. After the position of the workpiece is fixed, the workpiece can be processed accordingly. The workpiece fixing plate 20 is connected to the limiting fixing ring 70 through the connecting spring 40, so that the position of the workpiece fixing plate 20 can be finely adjusted in different directions, so that the workpiece can be processed better.
[0039] The workpiece limiting hole 60 includes a first fixing hole 61, a second fixing hole 62 and a first plane layer 63. The first fixing hole 61 and the second fixing hole 62 have different aperture sizes and can be used to limit circular workpieces of different sizes. The connecting plane between the first fixing hole 61 and the second fixing hole 62 forms the first plane layer 63, which can be used to limit square workpieces. In this way, clamping and limiting operations can be performed on workpieces of different sizes and types, making it more applicable.
[0040] like Figure 3 As shown, a fixing ring 30 is provided inside the limiting fixing ring 70 on one side of the workpiece fixing plate 20, a fixing rod 50 is provided between the fixing ring 30 and the limiting fixing ring 70, and an adjusting member 80 for adjusting the position of the workpiece fixing plate 20 is provided on the fixing ring 30, and the adjusting member 80 is located on the inner side of the limiting fixing ring 70.
[0041] like Figure 4 As shown, the adjusting member 80 includes a second adjusting bolt 81 and a first movable connecting clamp 82 . The second adjusting bolt 81 is rotatably disposed on the fixing ring 30 , and the end of the second adjusting bolt 81 is connected to the workpiece fixing plate 20 through the first movable connecting clamp 82 .
[0042] Specifically, a fixing ring 30 is fixed inside the limiting fixing ring 70, and a second adjusting bolt 81 is provided on the fixing ring 30 for adjusting the lateral position of the workpiece fixing plate 20, so that the position of the butt joint end of the workpiece to be welded is restricted. In addition, a first movable connecting card 82 is provided between the second adjusting bolt 81 and the workpiece fixing plate 20. After the lateral position of the workpiece fixing plate 20 is adjusted, the user can still manually move the workpiece fixing plate 20 to further fine-tune the longitudinal position of the workpiece fixing plate 20, so that the alignment of the workpiece welding end is higher and the welding effect is better.
[0043] like Figure 4 As shown, multiple groups of limit fixing rings 70 are arranged, and the limit fixing rings 70 are fixed in the fixing plate 10. The thickness of the fixing plate 10 is smaller than the thickness of the limit fixing rings 70. Through this structural setting, on the one hand, multiple workpieces can be clamped and limited at one time according to actual needs. On the other hand, different sizes of workpiece fixing plates 20 can be selected according to actual needs to limit and clamp workpieces of different sizes, thereby further improving its scope of application.
[0044] like Figure 6 As shown, a fixed folding rod 12 is fixed on the fixing plate 10 at the extended side of the limiting fixing ring 70, and a limiting collar 13 is fixed on the end of the fixed folding rod 12. The limiting collar 13 and the workpiece limiting hole 60 in the workpiece fixing plate 20 are on the same horizontal plane.
[0045] With this structural arrangement, when welding a long workpiece, the positioning operation can be performed simultaneously by fixing the limiting collar 13 at the end of the folding rod 12 and the workpiece fixing plate 20, so that the restricted position of the workpiece is more stable. At the same time, during the movement and adjustment of the workpiece fixing plate 20, the limiting collar 13 can assist in limiting the position of the workpiece, thereby facilitating the position adjustment of the end of the workpiece.
[0046] In summary, when the overall structure of the first embodiment is used, the workpiece to be processed is placed in the workpiece limiting hole 60, and the position of the workpiece is limited by the fixing member 90. After the position of the workpiece is limited, the relevant welding operation can be performed. During the welding process, the user can manually move the workpiece fixing plate 20 to drive the workpiece to move in position, so that the position of the workpiece is finely adjusted to keep the welding position of the workpiece accurate.
[0047] After welding the outer wall, the user can loosen the workpiece fixing plate 20, and the workpiece fixing plate 20 is reset under the action of the connecting spring 40, so as to clamp and limit the next workpiece.
[0048] Example 2
[0049] A household appliance shell automatic welding platform includes a workpiece fixing plate 20, a connecting spring 40, a workpiece limiting hole 60, a limiting fixing ring 70 and a fixing member 90. The workpiece fixing plate 20 is arranged inside the limiting fixing ring 70, and a connecting spring 40 is arranged between the workpiece fixing plate 20 and the limiting fixing ring 70. Through this structural setting, the workpiece fixing plate 20 can be fine-tuned at any position in the plane direction, so that the workpiece connected to the workpiece fixing plate 20 can be conveniently and timely adjusted in position during the welding process, and the welding effect of the workpiece is better. At the same time, through the setting of the connecting spring 40, the workpiece fixing plate 20 can be buffered and protected. When external vibration affects the limiting fixing ring 70, the user can limit the position of the workpiece fixing plate 20, thereby limiting the workpiece on the workpiece fixing plate 20, avoiding the workpiece from being affected by external vibration, and achieving a better welding effect for the workpiece.
[0050] A workpiece limiting hole 60 is provided in the middle of the workpiece fixing plate 20, and fixing members 90 are provided on both sides of the workpiece limiting hole 60 on the workpiece fixing plate 20;
[0051] The workpiece limiting hole member 60 includes a first fixing hole 61, a second fixing hole 62 and a first plane layer 63. The first fixing hole 61 is opened at the center of the workpiece fixing plate 20, and the second fixing hole 62 is opened on the workpiece fixing plate 20 and is located on both sides of the first fixing hole 61, and is connected to the first fixing hole 61. The connecting plane between the first fixing hole 61 and the second fixing hole 62 forms the first plane layer 63.
[0052] like Figure 8As shown, two groups of limit fixing rings 70 are arranged in parallel, and the two groups of limit fixing rings 70 are staggered, so that the workpiece fixing plates 20 in the parallel limit fixing rings 70 are staggered;
[0053] A plurality of groups of position-limiting fixing rings 70 are fixed inside the fixing frame 100 , and a first adjusting bolt 110 for adjusting the position of the position-limiting fixing ring 70 is provided in the fixing frame 100 .
[0054] Specifically, the workpiece fixing plates 20 are arranged side by side, and the two workpiece fixing plates 20 arranged side by side are staggered, so that the bent workpiece can be clamped and limited, further improving the clamping range of the workpiece;
[0055] The user turns the first adjusting bolt 110 to adjust the position of the workpiece fixing plate 20 relative to the fixing frame 100, and adjusts the appropriate position of the workpiece fixing plate 20 according to the actual bending condition of the workpiece, thereby making the clamping position of the workpiece more stable and achieving better practical application effects.
[0056] like Figure 7 As shown, the fixing member 90 includes a fixing block 91, a third adjusting bolt 92, a second movable connection card 93 and an abutting limit member 94;
[0057] The fixing block 91 is fixed on the workpiece fixing plate 20 , and a third adjusting bolt 92 is rotatably connected to the fixing block 91 . The bottom of the third adjusting bolt 92 is connected to the abutment limiter 94 through a second movable connection card 93 .
[0058] Specifically, the third adjusting bolt 92 rotates to drive the abutment limiter 94 to move along the extension line of the third adjusting bolt 92 , so that the abutment limiter 94 limits the position of the workpiece and keeps the position of the workpiece relative to the workpiece fixing plate 20 stable.
[0059] like Figure 7 As shown, the abutment limiter 94 includes an arc-shaped fixing plate 941 , an arc-shaped rubber pad 942 and a second plane layer 943 . The arc-shaped rubber pad 942 is bonded to the bottom of the arc-shaped fixing plate 941 . The bottom ends of the arc-shaped fixing plate 941 and the arc-shaped rubber pad 942 are cut to form the second plane layer 943 .
[0060] Specifically, an arc-shaped rubber pad 942 is provided at the bottom of the arc-shaped fixing plate 941. When the tubular workpiece is limited, the arc-shaped rubber pad 942 will contact the workpiece. On the one hand, the friction between the arc-shaped rubber pad 942 and the workpiece can be increased, and the placement position of the workpiece can be stabilized. On the other hand, the workpiece can be protected to avoid hard scratches on the surface of the workpiece.
[0061] The bottom ends of the arc-shaped fixing plate 941 and the arc-shaped rubber pad 942 are cut to form a second plane layer 943. When clamping and limiting a one-sided workpiece, four line connections are formed on both sides of the workpiece, which has a better limiting effect on the workpiece and keeps the position of the workpiece stable after installation.
[0062] like Figure 4 As shown, the workpiece fixing plate 20 is set to a circular structure, and a plurality of notches 21 are evenly opened on the outer wall of the workpiece fixing plate 20. Through this structural setting, when the user holds the workpiece fixing plate 20, the fingers are located in the notches 21 on the workpiece fixing plate 20, which is convenient for the user to hold the workpiece fixing plate 20 and adjust the position of the workpiece fixing plate 20;
[0063] The workpiece fixing plate 20 is set to a circular structure, and the limit fixing ring 70 is also set to a circular ring structure. The workpiece fixing plate 20 and the limit fixing ring 70 are kept concentrically arranged. The elastic force of the multiple connecting springs 40 arranged between the workpiece fixing plate 20 and the limit fixing ring 70 is equal, which can keep the position of the workpiece fixing plate 20 stable. After the position of the workpiece fixing plate 20 is adjusted, the connecting springs 40 can promptly reset the workpiece fixing plate 20.
[0064] like Figure 4 As shown, two fixing plates 10 or two fixing frames 100 are provided, and the two fixing plates 10 or two fixing frames 100 are connected by a U-shaped fixing rod 11. Through this structural setting, the workpieces set on the two fixing plates 10 are limited to keep the welding position of the workpiece stable.
[0065] In summary, when the overall structure of Example 2 is in use, the bent workpiece is placed on the workpiece fixing plates 20 arranged side by side, and the two workpiece fixing plates 20 are used to restrict the position of the workpiece until the welding ends of the workpiece are connected together. The workpiece can then be welded. During the welding process, the user can manually move the workpiece fixing plates 20 to drive the workpiece to move in position, so that the position of the workpiece can be fine-tuned to keep the welding position of the workpiece accurate.
[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An automatic welding platform for household appliance housing, characterized in that: It comprises a workpiece fixing plate (20), a connecting spring (40), a workpiece limiting hole (60), a limiting fixing ring (70) and a fixing member (90), wherein the workpiece fixing plate (20) is arranged inside the limiting fixing ring (70), and a connecting spring (40) is arranged between the workpiece fixing plate (20) and the limiting fixing ring (70); A workpiece limiting hole (60) is provided at a middle position of the workpiece fixing plate (20), and fixing members (90) are provided on both sides of the workpiece limiting hole (60) on the workpiece fixing plate (20); The workpiece limiting hole member (60) comprises a first fixing hole (61), a second fixing hole (62) and a first plane layer (63), wherein the first fixing hole (61) is provided at the center of the workpiece fixing plate (20), the second fixing holes (62) are provided on the workpiece fixing plate (20) and are located on both sides of the first fixing hole (61) and are in communication with the first fixing hole (61), and a connecting plane between the first fixing hole (61) and the second fixing hole (62) forms the first plane layer (63); A fixing ring (30) is provided inside the position-limiting fixing ring (70) and located on one side of the workpiece fixing plate (20); a fixing rod (50) is provided between the fixing ring (30) and the position-limiting fixing ring (70); an adjusting member (80) for adjusting the position of the workpiece fixing plate (20) is provided on the fixing ring (30); the adjusting member (80) is located inside the position-limiting fixing ring (70); The adjusting member (80) comprises a second adjusting bolt (81) and a first movable connecting clamp (82); the second adjusting bolt (81) is rotatably arranged on the fixing ring (30); and the end of the second adjusting bolt (81) is connected to the workpiece fixing plate (20) via the first movable connecting clamp (82); The fixing member (90) comprises a fixing block (91), a third adjusting bolt (92), a second movable connection card (93) and an abutment limiting member (94); The fixing block (91) is fixed to the workpiece fixing plate (20), and a third adjusting bolt (92) is rotatably connected to the fixing block (91), and the bottom of the third adjusting bolt (92) is connected to the abutment limiter (94) via a second movable connection clip (93).
2. The automatic welding platform for home appliance housing according to claim 1, characterized in that: The position-limiting fixing rings (70) are arranged in multiple groups, and the position-limiting fixing rings (70) are fixed in the fixing plate (10), and the thickness of the fixing plate (10) is smaller than the thickness of the position-limiting fixing rings (70).
3. The automatic welding platform for home appliance housing according to claim 2, characterized in that: A fixed folding rod (12) is fixed on the fixing plate (10) at the protruding side of the limiting fixing ring (70), a limiting collar (13) is fixed to the end of the fixed folding rod (12), and the limiting collar (13) and the workpiece limiting hole (60) in the workpiece fixing plate (20) are located on the same horizontal plane.
4. The automatic welding platform for home appliance housing according to claim 1, characterized in that: Two groups of the position limiting fixing rings (70) are arranged in parallel, and the two groups of the position limiting fixing rings (70) are arranged in a staggered manner, so that the workpiece fixing plates (20) in the parallel position limiting fixing rings (70) are arranged in a staggered manner; The two groups of the position-limiting fixing rings (70) are fixed inside the fixing frame (100), and the fixing frame (100) is provided with a first adjusting bolt (110) for adjusting the position of the position-limiting fixing rings (70).
5. The automatic welding platform for home appliance housing according to claim 2, characterized in that: The abutment stopper (94) comprises an arc-shaped fixing plate (941), an arc-shaped rubber pad (942) and a second plane layer (943); the arc-shaped rubber pad (942) is bonded to the bottom of the arc-shaped fixing plate (941); and the bottom ends of the arc-shaped fixing plate (941) and the arc-shaped rubber pad (942) are cut to form the second plane layer (943).
6. The automatic welding platform for home appliance housing according to claim 5, characterized in that: The workpiece fixing plate (20) is configured as a circular structure, and a plurality of notches (21) are evenly arranged on the outer side wall of the workpiece fixing plate (20).
7. The automatic welding platform for household appliance shells according to claim 6, characterized in that: Two fixing plates (10) or two fixing frames (100) are provided, and the two fixing plates (10) or two fixing frames (100) are connected via a U-shaped fixing rod (11).
Citation Information
Patent Citations
Welding fixture for processing of capacitor shells
CN108145369A
Positioning adjusting device for workpiece welding and adjusting method thereof
CN115229411A