Spot welding apparatus

Abstract

The application discloses a spot welding device and relates to the field of elevator mold box spot welding devices, which comprises a box body, a pressing cylinder connected to the top surface of the box body through a support structure, a pressing head fixedly connected to the head of the pressing cylinder, a rectangular opening arranged on the top surface of the box body, a pressure bearing table arranged in the box body at a position corresponding to the opening, an electric push rod arranged in the pressure bearing table, the top end of the electric push rod upwardly penetrating out and contacting a pressing plate, a first pressure bearing plate and a second pressure bearing plate which are perpendicular to the surface of the pressure bearing table and are slidably connected to the top surface of the pressure bearing table, fixed boxes fixedly connected to the two sides of one end of the second pressure bearing plate, a sliding column slidably connected to the fixed box, and a spot welding head arranged at the front end of the sliding column. The application is characterized in that the pressing plate is arranged on the pressure bearing table in the box body structure, the electric push rod structure is connected to the bottom end of the pressing plate, and the position-adjustable spot welding head is arranged on one side of the pressure bearing plate, so that the production efficiency of the elevator mold box is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevator die box spot welding equipment, in particular to a spot welding equipment. BACKGROUND

[0002] The counterweight is a component of the elevator traction system, which reduces the power of the traction motor and the torque on the traction sheave and worm gear. The counterweight is usually composed of multiple counterweight blocks. When processing the counterweight blocks, a die box is needed to carry the slurry for processing the counterweight blocks. After grouting in the die box, it is cooled and formed.

[0003] In the prior art, a stamping and cutting device is used to cut the steel plate during production. The cut steel plate is folded and welded after cutting.

[0004] A related patent with publication number CN217071231U discloses an elevator die box spot welding equipment, which includes a base, side plates and a top plate. The side plates are arranged on the same side of the base and the top plate, and the top plate is arranged directly above the base. A limiting groove is arranged above the top plate, and the limiting groove is used to place the die plate after cutting. The die plate is composed of a bottom and four edges connected to the bottom. A fitting groove is arranged at the center of the limiting groove, and the fitting groove is matched with the bottom of the die plate. The bottom of the die plate is arranged directly above the fitting groove. A slide rod is arranged below the top plate through a first air cylinder. A push block is arranged below the slide rod. The push block is arranged directly above the bottom of the die plate. A limiting piece is arranged above the push block to clamp the four edges of the folded die plate. A scissor lift is arranged in the fitting groove.

[0005] For the above-mentioned related technology, the existing spot welding equipment for the elevator die box cannot well adapt to different sizes of the die box in actual use. The size of the die box that can be processed is relatively single. In the process of processing, manual spot welding is still needed, and it is not easy to complete the spot welding operation of the gap at the same time of forming. The work efficiency is low, and the labor amount of workers is large. SUMMARY

[0006] Therefore, the purpose of the present application is to provide a spot welding equipment to solve the technical problem that the existing spot welding equipment is not easy to spot weld the gap of the steel plate at the same time of forming the steel plate.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a spot welding equipment, comprising a box, the box is connected with a pressing cylinder towards the top surface of the box through a support structure, the head of the pressing cylinder is fixedly connected with a pressing head, the top surface of the box is provided with a rectangular opening, and the inside is provided with a pressure receiving table at the position corresponding to the opening, the inside of the pressure receiving table is provided with an electric push rod, the top end of the electric push rod penetrates upwards and contacts a pressing plate, the top surface of the pressure receiving table is slidably connected with a first pressure receiving plate and a second pressure receiving plate which are perpendicular to the table surface of the pressure receiving table, the two sides of one end of the second pressure receiving plate are fixedly connected with fixed boxes, the fixed boxes are slidably connected with sliding columns, and the front end of the sliding column is provided with a spot welding head.

[0008] By adopting the above technical scheme, the pressing plate is arranged on the pressure receiving table in the box structure and is lifted, the electric push rod structure is connected to the bottom end of the pressing plate, the spot welding head with adjustable position is arranged on one side of the pressure receiving plate, the tip of the spot welding head is aligned with the joint of the folded steel plate, the spot welding of the joint of the mold box can be conveniently realized during the upward pushing of the mold box after the mold box is formed by stamping, the production efficiency of the elevator mold box is greatly improved, and the labor amount of workers is reduced.

[0009] The present application is further provided that the side edges of the pressing head are provided with connecting holes, and the pressing head is connected with an extension block through the connecting holes and screws.

[0010] By adopting the above technical scheme, different specifications of extension blocks are connected to the pressing head, so that the stamping forming of various specifications of mold boxes can be realized.

[0011] The present application is further provided that the pressure receiving table is provided with rails for the sliding of the first pressure receiving plate and the second pressure receiving plate, and the bottom ends of the first pressure receiving plate and the second pressure receiving plate are provided with positioning structures.

[0012] By adopting the above technical scheme, the positions of the first pressure receiving plate and the second pressure receiving plate are fixed by the positioning structures, so that they are kept at the required positions.

[0013] The present application is further provided that the front end of the box is provided with a front plate, and the rear end is provided with a back plate, and the front plate and the back plate are both provided with a fan with a blowing direction towards the back plate.

[0014] By adopting the above technical scheme, the welding fume generated by the spot welding head in the box can be mostly discharged along the air outlet end of the fan through the fan on the front plate and the back plate.

[0015] The present application is further provided that the air outlet end of the fan arranged on the back plate is connected with a communication pipeline, and the other end of the communication pipeline is connected with a waste gas filtering box arranged at the bottom of the box.

[0016] By adopting the technical scheme, the welding fume in the box is filtered by the waste gas filtering box, and the amount of welding fume inhaled by workers is greatly reduced.

[0017] The top surface of the box is provided with a downwardly recessed recess.

[0018] The recess structure can enable workers to better align the steel plate at the required position on the top surface of the box.

[0019] The top end of the box is provided with a push plate structure towards the center of the box.

[0020] The push plate structure enables the steel plate to be kept at the center position on the top surface of the box.

[0021] The first pressure bearing plate and the second pressure bearing plate are both provided with two, the two first pressure bearing plates are parallel to each other, and the two second pressure bearing plates are parallel to each other.

[0022] The two groups of first pressure bearing plates and second pressure bearing plates form a rectangular structure, and in the state of being pressed by the pressure head, the steel plate is bent into the shape of the mold box.

[0023] The inside of the pressure bearing table is provided with two groups of guide rods, the guide rods are telescopic rod structures, and the top ends are fixedly connected to the bottom surface of the pressure plate.

[0024] The guide rods enable the pressure plate to stably ascend and descend.

[0025] The top surface of the pressure plate is higher than the top surface of the box in the elongated state of the electric push rod.

[0026] The gap at the lower end of the mold box can also be welded by the spot welding head.

[0027] In summary, the present application mainly has the following advantages:

[0028] 1、The present application is provided with a pressure bearing table in the box structure, a pressure plate is arranged on the pressure bearing table and connected with an electric push rod structure at the bottom end of the pressure plate, and a spot welding head with adjustable position is arranged on one side of the pressure bearing plate, so that the tip of the spot welding head is aligned with the joint of the folded steel plate, the mold box is formed by stamping, and the joint of the mold box can be conveniently welded by the electric welding machine during the process of pushing out the mold box, the production efficiency of the elevator mold box is greatly improved, and the labor amount of workers is reduced.

[0029] 2、The present application is provided with adjustable pressure plate, and connecting holes are arranged on the edge of the pressure head, the distance between the pressure plates is adjusted, and the extension block is connected on the edge of the pressure head to make the area of the pressure head close to the bottom area of the mold box, so that the requirement of adapting to different size mold boxes is met;

[0030] 3、The present application is provided with the same fan group at the front end and the rear end of the box, and the spot welding head is arranged in the box, the welding fume generated when the spot welding mold is worked is flowed into the filter box arranged at the bottom end of the box along the pipeline, so that the effect of filtering the welding fume is achieved, and too much welding fume is prevented from floating out of the box to affect the health of workers;

[0031] 4、The present application is provided with a plurality of groups of adjustable stroke push air cylinders around the top surface of the box, when the steel plate is placed on the top end of the box, the steel plate is kept at the position of the center of the top surface of the box through the plurality of groups of push air cylinders, so that the bottom surface of the mold box is corresponding to the pressure head, and the purpose of quickly positioning the steel plate is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a top view of the present application;

[0033] Figure 2 It is a bottom view of the present application;

[0034] Figure 3 It is an internal view of the present application;

[0035] Figure 4 It is a Figure 3 enlarged view of A in the figure;

[0036] Figure 5 It is an internal view of the pressure table of the present application;

[0037] Figure 6 It is a front internal view of the guide rod of the present application.

[0038] In the figure: 1, box; 2, pressure cylinder; 3, pressure head; 4, extension block; 5, pressure table; 6, electric push rod; 7, guide rod; 8, pressure plate; 9, first pressure plate; 10, second pressure plate; 11, fixed box; 12, sliding column; 13, spot welding head; 14, front plate; 15, back plate; 16, communication pipeline; 17, waste gas filter box; 18, recess table; 19, first positioning push plate; 20, second positioning push plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present application. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0040] The embodiments of the present invention will now be described.

[0041] A type of spot welding equipment, such as Figures 1-6 As shown, the device includes a housing 1. A pressure cylinder 2 facing the top surface of the housing 1 is connected to the housing 1 via a support structure. A pressure head 3 is fixedly connected to the head of the pressure cylinder 2. A rectangular opening is provided on the top surface of the housing 1. A pressure platform 5 is provided inside the opening. An electric push rod 6 is installed inside the pressure platform 5. The top of the electric push rod 6 extends upward and contacts a pressure plate 8. A first pressure plate 9 and a second pressure plate 10, orthogonal to the platform surface of the pressure platform 5, are slidably connected to the top surface of the pressure platform 5. Fixed boxes 11 are fixedly connected to both sides of one end of the second pressure plate 10. A sliding column 12 is slidably connected inside the fixed box 11. Furthermore, a positioning knob is provided on the sliding column 12, threadedly connected to the sliding column 12. A limiting structure for the sliding column 12 is provided on the edge of the fixed box 11, allowing it to slide only in a direction parallel to the second pressure plate 10. Tighten the positioning knob to fix the sliding column 12 in the desired position within the fixing box 11. Specifically, the desired position for the sliding column 12 is determined by aligning the front end of the spot welding head 13 with the gap in the mold box. The front end of the sliding column 12 is provided with a spot welding head 13. The pressure plate 5 is provided with a track for the first pressure plate 9 and the second pressure plate 10 to slide. The bottom ends of the first pressure plate 9 and the second pressure plate 10 are both provided with positioning structures. Specifically, the positioning structures include screws connected to the bottom ends of the first pressure plate 9 and the second pressure plate 10. Positioning holes are provided at intervals in the sliding track of the first pressure plate 9 and the second pressure plate 10. By tightening the screws into these positioning holes, the first pressure plate 9 and the second pressure plate 10 are positioned. The positioning structures fix the position of the first pressure plate 9 and the second pressure plate 10, keeping them in the desired position.

[0042] Based on the above structure, in this embodiment, the side of the pressing head 3 is provided with connecting holes. The pressing head 3 is connected to the extension block 4 through the connecting holes and screws. Specifically, the area of ​​the structure formed by the extension block 4 connected to the pressing head 3 is exactly equal to the bottom area of ​​the mold box to be pressed. By connecting extension blocks 4 of different specifications to the pressing head 3, it is possible to press and form mold boxes of various specifications.

[0043] On the basis of the above structure, in the embodiment, the front end of the box body 1 is provided with a front plate 14, and the rear end is provided with a back plate 15, the front plate 14 and the back plate 15 are both provided with a fan with a blowing direction towards the back plate 15, through the fan on the front plate 14 and the back plate 15, most of the welding fume generated by the spot welding head 13 in the box body 1 can be discharged along the air outlet end of the fan, the air outlet end of the fan arranged on the back plate 15 is connected with a communication pipeline 16, the other end of the communication pipeline 16 is connected with a waste gas filtering box 17 arranged at the bottom of the box body 1, specifically, the waste gas filtering box 17 is provided with activated carbon and other adsorbent substances for filtering welding fume, the air outlet end of the fan arranged on the back plate 15 is connected with a communication pipeline 16, the other end of the communication pipeline 16 is connected with a waste gas filtering box 17 arranged at the bottom of the box body 1.

[0044] On the basis of the above structure, in the embodiment, the top surface of the box body 1 is provided with a concave platform 18 concave downward, the concave platform 18 structure can make the worker better align the steel plate on the required position on the top surface of the box body 1.

[0045] The embodiment also provides that the top end of the box body 1 is provided with a push plate structure towards the center of the box body 1 around, the push plate structure specifically includes two groups of oppositely arranged first positioning push plates 19 and another two groups of oppositely arranged second positioning push plates 20, the two groups of first positioning push plates 19 are parallel to each other, the two groups of second positioning push plates 20 are also parallel to each other, the adjacent first positioning push plate 19 and the second positioning push plate 20 are perpendicular to each other, the back of the first positioning push plate 19 and the second positioning push plate 20 are connected with an adjustable stroke cylinder, by adjusting the stroke amount of the adjustable stroke cylinder, when the first positioning push plate 19 and the second positioning push plate 20 move towards each other, the steel plate can be kept at the center position on the top surface of the box body 1.

[0046] On the basis of the above structure, in the embodiment, the first pressure plate 9 and the second pressure plate 10 are both provided with two, the two first pressure plates 9 are parallel to each other, the two second pressure plates 10 are parallel to each other, the two groups of first pressure plates 9 and the second pressure plates 10 form a rectangular structure, under the pressing state of the pressure head 3, the steel plate is bent into the shape of the mold box.

[0047] Based on the above structure, in this embodiment, the pressure plate 5 is provided with two sets of guide rods 7. The guide rods 7 are telescopic rods, and their top ends are fixedly connected to the bottom surface of the pressure plate 8. The guide rods 7 enable the pressure plate 8 to rise and fall smoothly. When the electric push rod 6 is extended, the top surface of the pressure plate 8 is higher than the top surface of the box 1, so that the gap at the bottom of the mold box can also be welded by the spot welding head 13. Furthermore, the top end of the fixed part of the guide rod 7 is provided with a magnet, and the bottom end of the telescopic part is also provided with a magnet. When the electric push rod 6 lifts the pressure plate 8, the magnet of the fixed part of the guide rod 7 attracts the magnet of the telescopic part, and the electric push rod 6 retracts at this time. The pressure plate 8 can also remain in place, which is convenient for the next pressing of the mold box. At the same time, it can also prevent the pressure head 3 from falling faster than the electric push rod 6 retracting, thus avoiding damage to the electric push rod 6.

[0048] This invention creatively incorporates a spot welding head structure into the mold box pressing structure, avoiding the drawback of existing spot welding equipment that makes it difficult to spot weld the gaps in the steel plate while forming it. In this solution, a lifting pressure plate is set on the pressure platform inside the box structure, and an electric push rod structure is connected to the bottom of the pressure plate. An adjustable spot welding head is set on one side of the pressure plate, so that the tip of the spot welding head is aligned with the seam of the folded steel plate. After the mold box is stamped and formed, the welding machine can conveniently spot weld the seam of the mold box while pushing the mold box upward, which greatly improves the production efficiency of elevator mold boxes and reduces the workload of workers.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A spot welding device, comprising a housing (1), wherein a pressure cylinder (2) facing the top surface of the housing (1) is connected to the housing (1) via a support structure, a pressure head (3) is fixedly connected to the head of the pressure cylinder (2), a rectangular opening is provided on the top surface of the housing (1), and a pressure platform (5) is provided inside at the position corresponding to the opening, characterized in that: An electric push rod (6) is installed inside the pressure platform (5). The top end of the electric push rod (6) extends upward and contacts the pressure plate (8). A first pressure plate (9) and a second pressure plate (10) orthogonal to the platform surface of the pressure platform (5) are slidably connected to the top surface of the pressure platform (5). Fixing boxes (11) are fixedly connected to both sides of one end of the second pressure plate (10). A sliding column (12) is slidably connected inside the fixing box (11). A spot weld head (13) is provided at the front end of the sliding column (12). Two sets of guide rods (7) are installed inside the pressure platform (5). The guide rod (7) is a telescopic rod structure, and its top end is fixedly connected to the bottom surface of the pressure plate (8). A magnet is provided at the top end of the fixed part of the guide rod (7), and a magnet is also provided at the bottom end of the telescopic part.

2. The spot welding equipment according to claim 1, characterized in that: The side of the pressure head (3) is provided with a connection hole, and the pressure head (3) is connected to an extension block (4) through the connection hole and screw.

3. The spot welding equipment according to claim 2, characterized in that: The pressure plate (5) is provided with a track for sliding the first pressure plate (9) and the second pressure plate (10), and the bottom ends of the first pressure plate (9) and the second pressure plate (10) are provided with positioning structures.

4. The spot welding equipment according to claim 1, characterized in that: The front end of the housing (1) is provided with a front plate (14) and the rear end is provided with a back plate (15). Both the front plate (14) and the back plate (15) are provided with fans that blow air towards the back plate (15).

5. The spot welding equipment according to claim 4, characterized in that: The fan outlet on the back plate (15) is connected to a connecting pipe (16), and the other end of the connecting pipe (16) is connected to the exhaust gas filter box (17) located at the bottom of the box (1).

6. The spot welding equipment according to claim 1, characterized in that: The top surface of the box (1) is provided with a recessed platform (18) that is recessed downwards.

7. The spot welding equipment according to claim 6, characterized in that: The top of the box (1) is provided with push plate structures facing the center of the box (1) around its four sides.

8. The spot welding equipment according to claim 1, characterized in that: There are two of each of the first pressure plate (9) and the second pressure plate (10), with the two first pressure plates (9) being parallel to each other and the two second pressure plates (10) being parallel to each other.

9. The spot welding equipment according to claim 1, characterized in that: When the electric push rod (6) is in the extended state, the top surface of the pressure plate (8) is higher than the top surface of the box body (1).

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