Welding tool for top circular seam of capacitor box body

Abstract

The utility model discloses a welding tool for a top circular seam of a capacitor box body, which comprises a bottom plate, side upright posts are respectively and fixedly arranged at the rear side edge and the right side edge of the upper end surface of the bottom plate, a central upright post is fixedly arranged at the center of the upper end surface of the bottom plate, and a lining plate positioned in the horizontal direction is fixedly arranged at the upper end part of the central upright post; the lining plate is matched with the top space of the capacitor box body, the lining plate is made of a heat conduction metal material, a cavity for cooling circulating water to pass through is formed in the lining plate, the lower end face of the lining plate is provided with two pipe connecting heads communicated with the cavity in the lining plate, and a clamping assembly is fixedly arranged at the upper end of the side stand column and comprises a driving mechanism fixedly arranged at the upper end of the side stand column; the driving end of the driving mechanism faces one side of the lining plate and is further fixedly provided with a top plate located in the horizontal direction. The phenomena of buckling deformation, burnthrough and the like caused by excessive heat on the top of the capacitor box body are effectively prevented, single-face welding and double-face forming are achieved, the finished product of the capacitor box body formed through welding is good in quality and high in precision, and the percent of pass is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor box welding equipment, in particular to a welding tool for the annular seam on the top of a capacitor box. Background Art

[0002] Stainless steel is a metal material that is difficult to weld. Due to its high melting point and low thermal conductivity, it has high requirements for welding technology. Thin plate stainless steel workpieces are more susceptible to heat during welding, which can cause deformation and burn-through of stainless steel workpieces after welding. Therefore, experienced welding masters are required to perform welding operations on thin plate stainless steel workpieces to ensure the accuracy and quality of the welded products.

[0003] The capacitor box is a kind of stainless steel thin plate workpiece, which includes a side panel frame and a top cover. The top cover is located at the top of the side panel frame and is fixedly connected to the upper edge of the side panel frame by welding. The traditional welding processing method of the capacitor box is to directly weld it into a dense shape after manual splicing and spot welding. The problem with this manual welding method is that it has high requirements on the welding technology of the welding master, low efficiency and high cost of manual welding. Even the capacitor box welded by experienced welding masters still has quality problems such as warping, deformation and burn-through, resulting in a low qualified rate of the finished capacitor. For this reason, the utility model proposes a welding tool for the top annular seam of the capacitor box, in order to improve the welding quality and efficiency of the capacitor box. Summary of the invention

[0004] The purpose of the utility model is to overcome the defects existing in the prior art and provide a welding tool for the annular seam at the top of a capacitor box. When welding the capacitor box, the capacitor box formed by point welding is sleeved on the lining plate, and the clamping assembly located on the rear side and the rear side surface of the lining plate cooperate to clamp the upper end of the rear side wall of the capacitor box. Similarly, the clamping assembly located on the right side and the right side surface of the lining plate cooperate to clamp the upper end of the right side wall of the capacitor box. The lining plate is embedded in the top space of the capacitor box, and circulating cooling water is continuously introduced into the lining plate. In the welding process of the annular seam at the top of the capacitor box, the lining plate plays a role in shaping the inner lining of the top of the capacitor box. In addition, the circulating cooling water introduced into the lining can take away the heat generated during the welding process in time, thereby effectively preventing the top of the capacitor box from warping, deformation, burning through, etc. due to excessive heat, achieving single-sided welding and double-sided forming effects, the back of the weld has good aesthetic performance and can meet the welding requirements set on the back of the weld, the finished product of the welded capacitor box has good quality, high precision, and significantly improved pass rate; it can be combined with manual welding methods or automated welding equipment, the overall welding operation steps are simple, which helps to greatly improve the welding efficiency of the capacitor box; the overall structural design is simple, the preparation and implementation feasibility is high, and it is practical.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a welding tool for the top annular seam of a capacitor box, including a bottom plate, a side column is fixedly provided at the rear side edge position and the right side edge position of the upper end surface of the bottom plate, a central column is fixedly provided at the center of the upper end surface of the bottom plate, a lining plate located in the horizontal direction is fixedly provided at the upper end of the central column, the lining plate is adapted to the top space of the capacitor box, the lining plate is made of heat-conducting metal, the lining plate has a cavity for passing cooling circulating water, and the lower end surface of the lining plate has two pipe heads that are connected with the internal cavity, a clamping assembly is fixedly provided at the upper end of the side column, the clamping assembly includes a driving mechanism fixedly provided at the upper end of the side column, and the driving end of the driving mechanism faces one side of the lining plate, and the driving end of the driving mechanism is also fixedly provided with a top plate located in the horizontal direction.

[0006] The utility model discloses a welding tool for the annular seam at the top of a capacitor box. When welding the capacitor box, the capacitor box formed by point welding is sleeved on the lining plate. The clamping assembly located at the rear side and the rear side surface of the lining plate cooperate to clamp the upper end of the rear side wall of the capacitor box. Similarly, the clamping assembly located on the right side and the right side surface of the lining plate cooperate to clamp the upper end of the right side wall of the capacitor box. The lining plate is embedded in the top space of the capacitor box. Circulating cooling water is continuously introduced into the lining plate. In the welding process of the annular seam at the top of the capacitor box, the lining plate plays a role of shaping the inner lining on the top of the capacitor box, and the circulating cooling water introduced into the lining plate The circular cooling water can take away the heat generated during the welding process in time, thereby effectively preventing the top of the capacitor box from warping, deformation, burn-through, etc. due to excessive heat, achieving single-sided welding and double-sided forming effects. The back of the weld has good aesthetic performance and can meet the welding requirements set on the back of the weld. The welded capacitor box has good quality and high precision, and the qualified rate is significantly improved. It can be combined with manual welding methods or automated welding equipment. The overall welding operation steps are simple, which helps to greatly improve the welding efficiency of the capacitor box. The overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0007] The preferred technical solution is that the side column includes a base 1, the upper end surface of the base 1 is fixedly provided with a vertical plate close to the central column, and the vertical plate is parallel to a side surface corresponding to the lining plate, and a rib plate is fixedly provided between the vertical surfaces on both sides of the vertical plate and the upper end surface of the base 1;

[0008] The driving mechanism is a cylinder, and the flange plate at the open end of the cylinder is vertically fixedly installed on the side surface of the vertical plate away from the central column through a screw assembly, and the piston rod of the cylinder movably penetrates the through hole on the upper end of the corresponding vertical plate and is vertically fixedly connected to the top plate. The side column structure is cleverly designed, has good stability, and is convenient for fixing and installing the cylinder. The driving mechanism is a cylinder with good universality, ensuring that the welding tooling of the utility model can be smoothly prepared and implemented.

[0009] A further preferred technical solution is that one side of the top plate facing the lining plate is provided with a flexible backing plate. When the capacitor box body formed by butt welding is sleeved and installed on the welding tool of the present invention, the piston rod of the cylinder pushes the top plate to move towards the lining plate side, and cooperates with the corresponding side of the lining plate to clamp the upper end of the corresponding side wall of the capacitor box body. The flexible backing plate effectively prevents the top plate from scratching the outer side of the capacitor box body, ensuring the aesthetics of the product.

[0010] A further preferred technical solution is that T-shaped grooves one are respectively formed in the left side surface and the right side surface of the central column along the longitudinal direction, and one end or both ends of the T-shaped groove one are provided with slider mounting grooves communicating with it;

[0011] It further includes two support rod assemblies. The support rod assembly includes an internally threaded sleeve. One end of the internally threaded sleeve is screwed and installed with a first screw rod, and the other end is screwed and installed with a second screw rod. A first slider is fixedly arranged at the free end of the first screw rod, and an abutting block is fixedly arranged at the free end of the second screw rod. And the first slider is adapted to the T-shaped groove one. The first slider on one support rod assembly is slidably inserted and installed inside the T-shaped groove one on the left side surface of the central column, and the first slider on the other support rod assembly is slidably inserted and installed inside the T-shaped groove one on the right side surface of the central column. The two support rod assemblies are slidably installed on the left and right side surfaces of the central column, so that the left and right side walls of the capacitor box body installed on the lining plate can be tightened from the inside to the outside, further preventing the lower end of the capacitor box body from shifting during the welding process, and helping to ensure the accuracy of the welding operation of the top circumferential seam.

[0012] A further preferred technical solution is that it further includes an angle complementary connection assembly. The angle complementary connection assembly includes a second base and a support plate assembly. The second base includes a first substrate. Front and rear sides of the upper end surface of the first substrate are respectively fixedly provided with first ear plates, and the upper side of the first ear plate is set as an arc-shaped edge surface structure. The two first ear plates and the first substrate enclose to form an installation groove. A shaft body perpendicular to the center positions of the two first ear plates is fixedly arranged inside the installation groove. Threaded holes are formed in the first ear plates on the left and right sides above the shaft body, and locking screws with screw rod ends extending into the installation groove are screwed and installed inside the threaded holes;

[0013] The support plate assembly includes a second substrate. The lower end surface of the second substrate is fixedly provided with second ear plates adapted to the installation groove. The second ear plate has an installation hole in the center. The second ear plate is movably sleeved and installed on the shaft body inside the installation groove through the installation hole. Arc-shaped grooves are respectively formed on the front and rear sides of the lower end surface of the second substrate. The two first ear plates are located inside the corresponding arc-shaped grooves. The screw rod end of the locking screw one abuts against the front side surface or the rear side surface of the second ear plate;

[0014] The described abutting block is rotatably mounted at the free end of the second screw by a ball head connector. For a capacitor box with an irregular shape, the top surface of the capacitor box sleeved and mounted on the lining plate can be adjusted to a horizontal position through an angle complementary connection assembly, and the abutting block on the support rod assembly is rotatably mounted at the free end of the second screw by a ball head connector, which can cooperate with the angle complementary connection assembly to tightly abut the lower ends of the inner wall surfaces on both sides of the capacitor box, ensuring the overall installation stability of the capacitor box on the welding fixture of the present utility model.

[0015] A further preferred technical solution is that the upper end surface of the second substrate has a number of T-shaped grooves II distributed in the left-right direction, the lining plate is provided with a number of countersunk holes penetrating the plate body, a locking screw II is inserted and installed inside the countersunk hole, and a slider II adapted to the T-shaped groove II is screwed and installed at the screw rod end of the locking screw II. The slider II is slidably inserted and installed inside the T-shaped groove II on the upper end surface of the second substrate, and the lining plate is fixedly locked and installed on the upper end surface of the second substrate through the locking screw II and the slider II in a screwed fit. The fixed installation method of the lining plate on the support plate assembly is simple, and it is convenient to replace the corresponding and adapted lining plate according to different specifications, sizes and shapes of the capacitor boxes.

[0016] A further preferred technical solution is that the outer surface of the abutting block is coated with a flexible wear-resistant layer, which effectively avoids scratching the inner wall surface of the capacitor box.

[0017] A further preferred technical solution is that the lining plate is made of metal copper.

[0018] The advantages and beneficial effects of the present utility model are as follows:

[0019] 1. The utility model is a welding tool for the top annular seam of a capacitor box. When welding the capacitor box, the capacitor box formed by point welding is sleeved on the lining plate. The clamping assembly located on the rear side and the rear side surface of the lining plate cooperate to clamp the upper end of the rear side wall of the capacitor box. Similarly, the clamping assembly located on the right side and the right side surface of the lining plate cooperate to clamp the upper end of the right side wall of the capacitor box. The lining plate is embedded in the top space of the capacitor box. Circulating cooling water is continuously introduced into the lining plate. During the welding process of the top annular seam of the capacitor box, the lining plate plays a role in shaping the inner lining of the top of the capacitor box, and the water introduced into the lining plate The circulating cooling water can take away the heat generated during the welding process in time, thereby effectively preventing the top of the capacitor box from warping, deformation, burn-through, etc. due to excessive heat, achieving a single-sided welding and double-sided forming effect. The back of the weld has good aesthetic performance and can meet the welding requirements set on the back of the weld. The welded capacitor box has good quality, high precision, and a significantly improved pass rate. It can be combined with manual welding or automated welding equipment. The overall welding operation steps are simple, which helps to greatly improve the welding efficiency of the capacitor box. The overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0020] 2. When the capacitor box formed by spot welding is installed on the welding tooling of the utility model, the piston rod of the cylinder pushes the top plate to move toward the side of the lining plate, and cooperates with the corresponding side of the lining plate to clamp the upper end of the corresponding side wall of the capacitor box. The flexible pad effectively prevents the top plate from scratching the outer side of the capacitor box, ensuring the aesthetics of the product.

[0021] 3. The two support rod assemblies are slidably installed on the left and right side surfaces of the central column, so that the left and right side walls of the capacitor box installed on the liner can be tightened from the inside to the outside, further preventing the lower end of the capacitor box from offset during welding, which helps to ensure the accuracy of the welding operation of the top annular seam.

[0022] 4. For capacitor boxes with irregular shapes, the top surface of the capacitor box mounted on the liner can be adjusted to a horizontal position through an angle complementary connection component, and the abutment block on the support rod assembly is rotatably installed on the free end of the screw rod 2 using a ball head connector, and the lower ends of the inner wall surfaces on the left and right sides of the capacitor box can be pressed tightly in conjunction with the angle complementary connection component to ensure the overall installation stability of the capacitor box on the welding tooling of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a left front side perspective of the welding tool used for the annular seam on the top of the capacitor box body of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the H in the middle;

[0025] Figure 3 is a left rear side perspective three-dimensional view of the welding tooling for the top circumferential seam of the capacitor box body of the present utility model;

[0026] Figure 4 is a disassembled three-dimensional view of the copper lining plate and the angle complementary connection assembly;

[0027] Figure 5 is a three-dimensional structural diagram of the base;

[0028] Figure 6 is a three-dimensional structural diagram of the pallet assembly;

[0029] Figure 7 is a three-dimensional structural diagram of the angle complementary connection assembly;

[0030] Figure 8 is a left front side perspective three-dimensional view of the welding tooling for the top circumferential seam of the capacitor box body of the present utility model in the working state;

[0031] Figure 9 is a bottom perspective three-dimensional view of the welding tooling for the top circumferential seam of the capacitor box body of the present utility model in the working state.

[0032] In the figure: 1, bottom plate; 2, side column; 3, central column; 4, clamping assembly; 5, lining plate; 6, angle complementary connection assembly; 7, support rod assembly; 8, capacitor box body; 2-1, base one; 2-2, vertical plate; 2-3, rib plate; 3-1, T-shaped groove one; 3-2, slider installation groove; 4-1, driving mechanism; 4-1a, flange plate; 4-2, top plate; 4-3, flexible backing plate; 5-1, counterbore; 5-2, nozzle; 6-1, base two; 6-1a, substrate one; 6-1b, ear plate one; 6-1c, installation groove; 6-1d, shaft body; 6-1e, locking screw one; 6-2, pallet assembly; 6-2a, substrate two; 6-2b, ear plate two; 6-2c, arc-shaped groove; 6-2d, installation hole; 6-2e, T-shaped groove two; 6-3, locking screw two; 6-4, slider two; 7-1, internally threaded sleeve; 7-2, screw one; 7-3, slider one; 7-4, screw two; 7-5, abutting block. Detailed implementation manners

[0033] The following further describes the detailed implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0034] Embodiment

[0035] As Figures 1 to 7As shown in the figure, the utility model is a welding tooling for the top circumferential seam of a capacitor box body, including a bottom plate 1. On the rear edge position and the right edge position of the upper end surface of the bottom plate 1, a side column 2 is fixedly provided respectively. In the center of the upper end surface of the bottom plate 1, a central column 3 is fixedly provided. At the upper end of the central column 3, a lining plate 5 in the horizontal direction is fixedly provided. The lining plate 5 is adapted to the top space of the capacitor box body. The lining plate 5 is made of heat-conducting metal material. Inside the lining plate 5, there is a cavity for passing cooling circulating water, and at the lower end surface of the lining plate 5, there are two connecting pipe heads 5-2 communicating with its internal cavity. At the upper end of the side column 2, a clamping assembly 4 is fixedly provided. The clamping assembly 4 includes a driving mechanism 4-1 fixedly provided at the upper end of the side column 2, and the driving end of the driving mechanism 4-1 faces the side of the lining plate 5. At the driving end of the driving mechanism 4-1, a top plate 4-2 in the horizontal direction is also fixedly provided.

[0036] Preferably, the side column 2 includes a base one 2-1. On the upper end surface of the base one 2-1, a vertical plate 2-2 close to the central column 3 is fixedly provided, and the vertical plate 2-2 is parallel to the corresponding side surface on the lining plate 5. Between the two vertical surfaces on both sides of the vertical plate 2-2 and the upper end surface of the base one 2-1, a rib plate 2-3 is also fixedly provided;

[0037] The driving mechanism 4-1 is a cylinder. The flange plate 4-1a at the opening end of the cylinder is vertically fixedly installed on the side surface of the vertical plate 2-2 far from the central column 3 through a screw assembly, and the piston rod of the cylinder movably penetrates through the through hole at the upper end of the corresponding vertical plate 2-2 and is vertically fixedly connected to the top plate 4-2.

[0038] Further preferably, on the side surface of the top plate 4-2 facing the lining plate 5, there is a flexible cushion plate 4-3.

[0039] Further preferably, on the left side surface and the right side surface of the central column 3, T-shaped grooves one 3-1 in the longitudinal direction are respectively opened. At one end or both ends of the T-shaped groove one 3-1, a slider installation groove 3-2 communicating with it is provided;

[0040] It also includes two support rod assemblies 7. The support rod assembly 7 includes an internally threaded sleeve 7-1. At one end of the internally threaded sleeve 7-1, a screw rod one 7-2 is screwed and installed, and at the other end, a screw rod two 7-4 is screwed and installed. At the free end of the screw rod one 7-2, a slider one 7-3 is fixedly provided, and at the free end of the screw rod two 7-4, an abutting block 7-5 is fixedly provided. And the slider one 7-3 is adapted to the T-shaped groove one 3-1. The slider one 7-3 on one support rod assembly 7 is slidably inserted and installed inside the T-shaped groove one 3-1 on the left side surface of the central column 3, and the slider one 7-3 on the other support rod assembly 7 is slidably inserted and installed inside the T-shaped groove one 3-1 on the right side surface of the central column 3.

[0041] Further preferably, it further includes an angle complementary connection component 6. The angle complementary connection component 6 includes a second base 6-1 and a tray component 6-2. The second base 6-1 includes a first substrate 6-1a. On the front and rear sides of the upper end surface of the first substrate 6-1a, first ear plates 6-1b are respectively and correspondingly fixed. And the upper side of the first ear plate 6-1b is provided with an arc-shaped edge surface structure. An installation groove 6-1c is formed by enclosing the two first ear plates 6-1b and the first substrate 6-1a. A shaft body 6-1d perpendicular to the central positions of the two first ear plates 6-1b and located inside the installation groove 6-1c is fixedly provided. Threaded holes are provided on the left and right sides above the shaft body 6-1d on the first ear plate 6-1b. A first locking screw 6-1e with a screw rod end extending into the installation groove 6-1c is screwed and installed inside the threaded hole;

[0042] The tray component 6-2 includes a second substrate 6-2a. A second ear plate 6-2b adapted to the installation groove 6-1c is fixedly provided on the lower end surface of the second substrate 6-2a. The second ear plate 6-2b has an installation hole 6-2d at the center. The second ear plate 6-2b is movably sleeved on the shaft body 6-1d inside the installation groove 6-1c through the installation hole 6-2d. Arc-shaped grooves 6-2c are respectively provided on the front and rear sides of the lower end surface of the second substrate 6-2a. The two first ear plates 6-1b are located inside the corresponding arc-shaped grooves 6-2c. The screw rod end of the first locking screw 6-1e abuts against the front side or the rear side of the second ear plate 6-2b;

[0043] The abutting block 7-5 is rotatably installed at the free end of the second screw rod 7-4 by using a ball head connector.

[0044] Further preferably, a plurality of second T-shaped grooves 6-2e distributed in the left-right direction are provided on the upper end surface of the second substrate 6-2a. A plurality of countersunk holes 5-1 penetrating the plate body are provided on the lining plate 5. A second locking screw 6-3 is inserted and installed inside the countersunk hole 5-1. And a second slider 6-4 adapted to the second T-shaped groove 6-2e is screwed and installed at the screw rod end of the second locking screw 6-3. The second slider 6-4 is slidably inserted and installed inside the second T-shaped groove 6-2e on the upper end surface of the second substrate 6-2a. The lining plate 5 is fixedly locked and installed on the upper end surface of the second substrate 6-2a through the second locking screw 6-3 and the second slider 6-4 in a screwed fit.

[0045] Further preferably, a flexible wear-resistant layer is coated on the outer surface of the abutting block 7-5.

[0046] Further preferably, the lining plate 5 is made of metal copper.

[0047] The working principle of a welding tool for the top circumferential seam of a capacitor box body of the present utility model:

[0048] The enclosure panel and the cover body made of stainless steel are spot welded to form a capacitor box body 8 with an opening facing downward; the capacitor box body 8 is sleeved on the lining plate 5, and the lining plate 5 is embedded and abutted in the top space of the capacitor box body 8; the left support rod assembly 7 is adjusted to a suitable height position, and then by adjusting the screwing depth of the first screw rod 7-2 and / or the second screw rod 7-4 on the support rod assembly 7 on the internal thread sleeve 7-1, the abutting block 7-5 on the support rod assembly 7 abuts against the left inner wall surface of the capacitor box body 8. Similarly, the abutting block 7-5 on the right support rod assembly 7 is adjusted to abut against the right inner wall surface of the capacitor box body 8, so that the two support rod assemblies 7 tighten the capacitor box body 8 in the left and right directions; the cylinders on the two clamping assemblies 4 are started through the control system, so that the piston rods of the cylinders continuously extend and drive the top plate 4-2 and the flexible backing plate 4-3 to move towards one side of the capacitor box body 8 until the top plate 4-2 and the flexible backing plate 4-3 abut tightly against the corresponding side surface on the capacitor box body 8, and the cylinder is stopped from continuing to extend, completing the fixed installation of the capacitor box body 8 on the welding fixture of the present utility model (as Figures 8 to 9 shown); one connection head 5-2 on the lower end surface of the lining plate 5 is connected to the water inlet pipe of the circulating water, and the other connection head 5-2 is connected to the water outlet pipe of the circulating water, so that the circulating cooling water continuously circulates in the internal cavity of the lining plate 5, and the circumferential seam on the top of the capacitor box body 8 is welded manually or by a robotic arm; after welding is completed, the cylinders on the two clamping assemblies 4 are reset, and the screwing depth of the first screw rod 7-2 and / or the second screw rod 7-4 on the two support rod assemblies 7 on the internal thread sleeve 7-1 is adjusted so that the abutting block 7-5 is separated from the left inner wall surface or the right inner wall surface of the capacitor box body 8, and the finished product of the welded capacitor box body 8 is unloaded.

[0049] When the capacitor box body 8 is not in a regular shape, the capacitor box body 8 formed by spot welding is sleeved on the lining plate 5, the locking screws 6-1e on the front and rear sides of the angle complementary connection assembly 6 are loosened, and then the support plate assembly 6-2 is rotated so that the top surface of the capacitor box body 8 is in the horizontal direction, and then the locking screws 6-1e on the front and rear sides of the angle complementary connection assembly 6 are tightened again, and the subsequent welding process is carried out with reference to the above steps.

[0050] The utility model discloses a welding tool for the annular seam at the top of a capacitor box. When welding the capacitor box, the capacitor box formed by point welding is sleeved on the lining plate. The clamping assembly located at the rear side and the rear side surface of the lining plate cooperate to clamp the upper end of the rear side wall of the capacitor box. Similarly, the clamping assembly located on the right side and the right side surface of the lining plate cooperate to clamp the upper end of the right side wall of the capacitor box. The lining plate is embedded in the top space of the capacitor box. Circulating cooling water is continuously introduced into the lining plate. In the welding process of the annular seam at the top of the capacitor box, the lining plate plays a role of shaping the inner lining on the top of the capacitor box, and the circulating cooling water introduced into the lining plate The circular cooling water can take away the heat generated during the welding process in time, thereby effectively preventing the top of the capacitor box from warping, deformation, burn-through, etc. due to excessive heat, achieving single-sided welding and double-sided forming effects. The back of the weld has good aesthetic performance and can meet the welding requirements set on the back of the weld. The welded capacitor box has good quality and high precision, and the qualified rate is significantly improved. It can be combined with manual welding methods or automated welding equipment. The overall welding operation steps are simple, which helps to greatly improve the welding efficiency of the capacitor box. The overall structural design is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding tool for the top annular seam of a capacitor box, characterized in that: The invention comprises a bottom plate (1), wherein a side column (2) is fixedly provided at the rear edge position and the right edge position of the upper end surface of the bottom plate (1), a center column (3) is fixedly provided at the center of the upper end surface of the bottom plate (1), a lining plate (5) located in the horizontal direction is fixedly provided at the upper end of the center column (3), the lining plate (5) is adapted to the top space of the capacitor box, the lining plate (5) is made of heat-conducting metal, the lining plate (5) has a cavity for passing cooling circulating water inside, and the lower end surface of the lining plate (5) has two pipe heads (5-2) connected with the internal cavity, a clamping assembly (4) is fixedly provided at the upper end of the side column (2), the clamping assembly (4) comprises a driving mechanism (4-1) fixedly provided at the upper end of the side column (2), and the driving end of the driving mechanism (4-1) faces one side of the lining plate (5), and the driving end of the driving mechanism (4-1) is also fixedly provided with a top plate (4-2) located in the horizontal direction.

2. The welding tool for the top annular seam of a capacitor box according to claim 1, characterized in that: The side column (2) comprises a base 1 (2-1), the upper end surface of the base 1 (2-1) is fixedly provided with a vertical plate (2-2) close to the central column (3), and the vertical plate (2-2) is parallel to a corresponding side surface on the lining plate (5), and a rib plate (2-3) is fixedly provided between the vertical surfaces on both sides of the vertical plate (2-2) and the upper end surface of the base 1 (2-1); The driving mechanism (4-1) is a cylinder, and the flange plate (4-1a) located at the open end of the cylinder is vertically fixedly installed on the side surface of the vertical plate (2-2) away from the central column (3) through a screw assembly, and the piston rod of the cylinder movably penetrates the through hole at the upper end of the corresponding vertical plate (2-2) and is vertically fixedly connected to the top plate (4-2).

3. The welding tool for the top annular seam of a capacitor box as claimed in claim 2, characterized in that: The side of the top plate (4-2) facing the lining plate (5) is provided with a flexible pad (4-3).

4. The welding tool for the top annular seam of a capacitor box as claimed in claim 3, characterized in that: The left side and right side of the central column (3) are respectively provided with a T-shaped groove (3-1) along the longitudinal direction, and one end or both ends of the T-shaped groove (3-1) are provided with a slider installation groove (3-2) penetrating therewith; It also includes two support rod assemblies (7), the support rod assembly (7) includes an internal threaded sleeve (7-1), one end of the internal threaded sleeve (7-1) is threadedly installed with a screw rod 1 (7-2), and the other end is threadedly installed with a screw rod 2 (7-4), the free end of the screw rod 1 (7-2) is fixedly provided with a slider 1 (7-3), the free end of the screw rod 2 (7-4) is fixedly provided with an abutment block (7-5), and the slider 1 (7-3) is adapted to the T-slot 1 (3-1), the slider 1 (7-3) on one support rod assembly (7) is slidably plugged into the inside of the T-slot 1 (3-1) on the left side of the central column (3), and the slider 1 (7-3) on the other support rod assembly (7) is slidably plugged into the inside of the T-slot 1 (3-1) on the right side of the central column (3).

5. The welding tool for the top annular seam of a capacitor box as claimed in claim 4, characterized in that: It also includes an angle complementary connection component (6), the angle complementary connection component (6) includes a base 2 (6-1) and a support plate component (6-2), the base 2 (6-1) includes a base plate 1 (6-1a), the front and rear sides of the upper end surface of the base plate 1 (6-1a) are respectively fixed with ear plates 1 (6-1b), and the upper side of the ear plate 1 (6-1b) is set as an arc-shaped edge surface structure, the two ear plates 1 (6-1b) and the base plate 1 (6-1a) are surrounded to form a mounting groove (6-1c), the two ear plates 1 (6-1b) are vertically fixed with a shaft body (6-1d) located inside the mounting groove (6-1c) at the center position, the ear plate 1 (6-1b) is provided with threaded holes located on the left and right sides above the shaft body (6-1d), and the threaded holes are threadedly installed with a locking screw 1 (6-1e) whose end of a screw rod extends to the inside of the mounting groove (6-1c); The support plate assembly (6-2) comprises a base plate 2 (6-2a), the lower end surface of the base plate 2 (6-2a) is fixedly provided with an ear plate 2 (6-2b) adapted to the mounting groove (6-1c), the center of the ear plate 2 (6-2b) has a mounting hole (6-2d), the ear plate 2 (6-2b) is movably sleeved and mounted on the shaft (6-1d) inside the mounting groove (6-1c) through the mounting hole (6-2d), the lower end surface of the base plate 2 (6-2a) is provided with arc grooves (6-2c) on both sides, the two ear plates 1 (6-1b) are located inside the corresponding arc grooves (6-2c), and the screw rod end of the locking screw 1 (6-1e) abuts against the front side or rear side of the ear plate 2 (6-2b); The abutment block (7-5) is rotatably mounted on the free end of the second screw rod (7-4) by using a ball head connector.

6. The welding tool for the top annular seam of a capacitor box as claimed in claim 5, characterized in that: The upper end surface of the base plate 2 (6-2a) is provided with a plurality of T-shaped slots 2 (6-2e) distributed in the left-right direction, and the lining plate (5) is provided with a plurality of countersunk holes (5-1) penetrating the plate body, and a locking screw 2 (6-3) is installed inside the countersunk hole (5-1), and a slider 2 (6-4) matching the T-shaped slot 2 (6-2e) is threadedly installed at the screw rod end of the locking screw 2 (6-3), and the slider 2 (6-4) is slidably inserted and installed inside the T-shaped slot 2 (6-2e) on the upper end surface of the base plate 2 (6-2a), and the lining plate (5) is fixedly locked and installed on the upper end surface of the base plate 2 (6-2a) by means of the locking screw 2 (6-3) and the slider 2 (6-4) that are threadedly matched.

7. The welding tool for the top annular seam of a capacitor box as claimed in claim 6, characterized in that: The outer side of the abutment block (7-5) is coated with a flexible wear-resistant layer.

8. The welding tool for the top annular seam of a capacitor box according to any one of claims 1 to 7, characterized in that: The lining plate (5) is made of metallic copper.

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