Welding positioning device for external cooling fins of transformer

Abstract

The utility model discloses a transformer external radiating fin welding positioning device, which relates to the technical field of radiating fin processing, and comprises a slag receiving base, a conveying mechanism is arranged on one side of the slag receiving base, rectangular guide arms are distributed at the top end of the slag receiving base in a rectangular manner, a clamping mechanism is arranged right above the slag receiving base, and the clamping mechanism is arranged above the slag receiving base. The clamping mechanism is used for clamping the outer sides of cooling fins of multiple sizes, then the cooling fins and a cooling frame with the top end magnetically attracted are in butt joint conveniently, welding positioning is completed, a fine adjustment mechanism is arranged over the clamping mechanism, and the fine adjustment mechanism is used for adjusting the descending distance of the cooling frame. And therefore, the heat dissipation frames with different widths and sizes can be welded. The periphery of the magnetic attraction base plate is positioned through the four sets of outer rectangular sleeve blocks, so that the magnetic attraction base plate vertically ascends and descends the outer rectangular sleeve blocks, the descending range of the magnetic attraction base plate is adjusted, and the contact faces of the outer rectangular sleeve blocks and the magnetic attraction base plate are locked through bolts.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sink processing, in particular to a welding positioning device for an external heat sink of a transformer. Background Art

[0002] The heat sink of the transformer is an important component for heat dissipation of the transformer. It is generally composed of a main frame with evenly spaced metal sheets. Evenly spaced metal heat sinks are welded in the frame, and the oil pipe needs to pass through one side of the metal heat sink. The temperature of the oil in the pipe is carried by the heat sink to assist the heat dissipation inside the transformer.

[0003] The existing clamping mechanism mainly adjusts the distance of the clamp through a pneumatic cylinder or an electric cylinder. However, there is a certain range of error in the heat sink and the heat sink frame in actual production. The adjustment of the standard distance will affect the accuracy of the docking and welding of some heat sinks and heat sink frames and the accuracy of the contact surface, and will also make the welding non-compliant. In addition, a certain amount of welding slag will be generated during the welding process. A large amount of welding slag accumulated on the surface of the device will affect the accuracy of the clamp during operation. Summary of the invention

[0004] The utility model aims to provide a welding positioning device for an external heat sink of a transformer to solve the above-mentioned defects caused by the prior art.

[0005] A welding positioning device for an external heat sink of a transformer comprises a slag receiving base, a conveying mechanism is arranged on one side of the slag receiving base, a rectangular guide arm is arranged on the top of the slag receiving base, a clamping mechanism is arranged directly above the slag receiving base, the clamping mechanism clamps the outer sides of heat sinks of multiple groups of sizes, thereby facilitating the docking of the heat sink with a heat sink magnetically attracted at the top, thereby completing the welding positioning, a fine-tuning mechanism is arranged directly above the clamping mechanism, the fine-tuning mechanism adjusts the descending distance of the heat sink, thereby meeting the requirements for welding heat sinks of different widths and sizes.

[0006] Preferably, the clamping mechanism includes a clamp base plate, a guide groove, a clamp plate, a slider, an electric cylinder 2 and a leakage hole. A guide groove is arranged directly below the clamp base plate, a clamp plate is arranged above the guide groove, a slider is connected to the bottom end of the clamp plate, one side of one group of the sliders is connected to the output end of the electric cylinder 2, and multiple groups of the electric cylinder 2 with the same specifications are installed inside the guide groove, and the leakage hole is opened through the bottom end of the clamp base plate.

[0007] Preferably, the clamping piece is connected to the guide groove via a sliding block arranged at the bottom end.

[0008] Preferably, the fine-tuning mechanism includes a rectangular guide arm, a magnetic substrate, an electromagnetic block, an outer rectangular sleeve block and a slide groove. The outer side of the rectangular guide arm is connected through the outer rectangular sleeve block, and the interior of the rectangular guide arm is provided with a slide groove. The outer rectangular sleeve block is distributed in a rectangular shape on the outer side of the magnetic substrate, and electromagnetic blocks are arranged at equal intervals at the bottom end of the magnetic substrate.

[0009] Preferably, the rectangular guide arm is connected to the interior of the outer rectangular sleeve block through a sliding groove provided at the inner end.

[0010] Preferably, an output end of the electric cylinder is connected directly above the magnetic attraction substrate.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The four groups of outer rectangular sleeves are used to position the four sides of the magnetic substrate, so that the magnetic substrate can be vertically lifted and lowered relative to the outer rectangular sleeves, and the lowering range of the magnetic substrate can be adjusted. The outer rectangular sleeves and the contact surface of the magnetic substrate are locked with bolts, and the length of the wrench fork bracket can be adjusted according to the actual situation on site, and different micro-shift distance adjustment holes in the torque wrench can be selected to adjust the displacement size.

[0013] 2. During use, the outer rectangular sleeve block and the outer side of the magnetic substrate are positioned by the slide groove. During use, the welding frame is adsorbed by the magnetic substrate, and the descending size of the magnetic substrate is adjusted, and the welding slag inside the guide groove is directly dropped to the surface of the slag receiving base through the leakage hole, thereby meeting the collection and treatment of the welding slag, avoiding the accumulation of welding slag inside the guide groove and affecting the activity stability of the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a front view structural schematic diagram of the slag receiving base in the utility model.

[0016] Figure 3 It is a side structural schematic diagram of the slag receiving base in the utility model.

[0017] Figure 4 It is a schematic diagram of the front cross-section structure of the clamp base plate in the utility model.

[0018] Figure 5 It is a schematic diagram of the front cross-section structure of the magnetic base plate and the outer rectangular sleeve block in the utility model.

[0019] in:

[0020] 1. Slag receiving base; 2. Conveying mechanism; 3. Clamp base plate; 4. Guide groove; 5. Clamp plate; 6. Clamping mechanism; 7. Rectangular guide arm; 8. Magnetic base plate; 9. Electric cylinder 1; 10. Electromagnetic block; 11. Outer rectangular sleeve block; 12. Sliding block; 13. Electric cylinder 2; 14. Fine adjustment mechanism; 15. Leakage hole; 16. Slide groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, a welding positioning device for an external heat sink of a transformer comprises a slag receiving base 1, a conveying mechanism 2 is arranged on one side of the slag receiving base 1, a rectangular guide arm 7 is distributed in a rectangular shape on the top of the slag receiving base 1, a clamping mechanism 6 is arranged directly above the slag receiving base 1, the clamping mechanism 6 clamps the outer sides of heat sinks of multiple groups of sizes, thereby facilitating the docking of the heat sink with the heat sink magnetically attracted at the top, thereby completing the welding positioning, a fine-tuning mechanism 14 is arranged directly above the clamping mechanism 6, the fine-tuning mechanism 14 adjusts the descending distance of the heat sink, thereby meeting the requirements for welding heat sinks of different widths and sizes.

[0023] In this embodiment, the clamping mechanism 6 includes a clamp base plate 3, a guide groove 4, a clamp plate 5, a slider 12, an electric cylinder 13 and a leakage hole 15. The guide groove 4 is arranged directly below the clamp base plate 3, and the clamp plate 5 is arranged above the guide groove 4. The bottom end of the clamp plate 5 is connected to the slider 12, and one side of one group of the sliders 12 is connected to the output end of the electric cylinder 13. Multiple groups of electric cylinders 13 with the same specifications are installed inside the guide groove 4. The leakage hole 15 is opened through the bottom end of the clamp base plate 3, and the clamp plate 5 is pushed in opposite directions by the electric cylinder 13 to complete the simultaneous clamping and positioning of two groups of heat sinks.

[0024] In this embodiment, the clamp piece 5 is connected to the guide groove 4 via a slider 12 provided at the bottom end, and the clamp piece 5 is adjusted via the guide groove 4 to adjust the spacing of the clamp piece 5 .

[0025] In this embodiment, the fine-tuning mechanism 14 includes a rectangular guide arm 7, a magnetic substrate 8, an electromagnetic block 10, an outer rectangular sleeve block 11 and a slide groove 16. The outer side of the rectangular guide arm 7 is connected through the outer rectangular sleeve block 11, and the interior of the rectangular guide arm 7 is provided with a slide groove 16. The outer rectangular sleeve block 11 is distributed in a rectangular shape on the outside of the magnetic substrate 8. Electromagnetic blocks 10 are evenly spaced at the bottom end of the magnetic substrate 8. The welding frame is welded by the electromagnetic block 10, so that the welding frame and the heat sink are vertically butt-welded.

[0026] In this embodiment, the rectangular guide arm 7 is connected to the inside of the outer rectangular sleeve 11 through a slide groove 16 opened at the inner end, and the positioning height of the magnetic substrate 8 is adjusted through the outer rectangular sleeve 11 to control the descending range of the magnetic substrate 8.

[0027] In this embodiment, the output end of an electric cylinder 9 is connected directly above the magnetic substrate 8, and the magnetic substrate 8 is vertically lifted and lowered by the electric cylinder 9, so that the welding frame can be vertically lifted and lowered and the distance can be adjusted.

[0028] The actual application of this transformer external heat sink welding positioning device includes the following work contents:

[0029] Step 1: The operator can transport the heat sink and the heat sink rack for welding to one side of the slag receiving base 1 by the conveying mechanism 2, and adsorb the top of the heat sink rack by the electromagnetic block 10 arranged at the bottom of the magnetic substrate 8, and place the heat sink between the two groups of clamps 5 in sequence, and turn on the electric cylinder 2 13, and the electric cylinder 2 13 pushes the clamps 5 on both sides respectively, so that the bottom end slider 12 of the clamp 5 slides inside the guide groove 4, completing the indirect adjustment of the clamp 5, and clamping the heat sink by the clamp 5;

[0030] Step 2: After the operator has finished clamping the heat sink and heat sink of the transformer, the operator vertically lowers the magnetic substrate 8 through the electric cylinder 9, and then vertically lowers the magnetic substrate 8 and the heat sink, so that the bottom of the heat sink fits the top of the heat sink, and spot welds the contact surface of each group of heat sinks and multiple groups of heat sinks by electric welding, and then fully welds the heat sinks and multiple groups of heat sinks;

[0031] Step 3: During the welding of the heat sink and the heat sink, the welding slag needs to be knocked manually so that it falls on the upper surface of the fixture base plate 3, and the welding slag is directly dropped into the inside of the guide groove 4 by a brush, and the leakage hole 15 opened on the surface of the guide groove 4 directly drops the welding slag to the bottom of the slag receiving base 1, so as to facilitate the collection and treatment of the welding slag;

[0032] Step 4: When it is necessary to weld heat sinks and heat sinks of different lengths or specifications, the operator can pull the magnetic substrate 8 so that the magnetic substrate 8 can be vertically lifted and lowered on the outside of the outer rectangular sleeve 11, and then the descending range of the magnetic substrate 8 can be adjusted and controlled, and the outer rectangular sleeve 11 and the magnetic substrate 8 can be locked around through the fastening holes set on one side, so that the top of the magnetic substrate 8 is connected to the output end of the electric cylinder 9, and the magnetic substrate 8 is vertically pushed down, and the outer rectangular sleeve 11 is used to perform vertical descending on the outside of the rectangular guide arm 7.

[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A welding positioning device for an external heat sink of a transformer, Features: The invention comprises a slag receiving base (1), a conveying mechanism (2) is arranged on one side of the slag receiving base (1), a rectangular guide arm (7) is arranged in a rectangular shape at the top of the slag receiving base (1), a clamping mechanism (6) is arranged directly above the slag receiving base (1), the clamping mechanism (6) clamps the outer sides of heat sinks of multiple sizes, thereby facilitating the docking of the heat sinks with a heat sink frame magnetically attracted at the top, thereby completing the welding positioning, and a fine-tuning mechanism (14) is arranged directly above the clamping mechanism (6), the fine-tuning mechanism (14) adjusts the descending distance of the heat sink frame, thereby meeting the requirements for welding heat sinks of different widths and sizes.

2. A welding positioning device for an external heat sink of a transformer according to claim 1, Features: The clamping mechanism (6) comprises a clamp base plate (3), a guide groove (4), a clamp plate (5), a slider (12), an electric cylinder 2 (13) and a material leakage hole (15). The guide groove (4) is arranged directly below the clamp base plate (3), the clamp plate (5) is arranged above the guide groove (4), the bottom end of the clamp plate (5) is connected to the slider (12), one side of one group of the sliders (12) is connected to the output end of the electric cylinder 2 (13), and multiple groups of the electric cylinder 2 (13) with the same specifications are installed inside the guide groove (4), and the material leakage hole (15) is opened through the bottom end of the clamp base plate (3).

3. A welding positioning device for an external heat sink of a transformer according to claim 2, Features: The clamping piece (5) is connected to the guide groove (4) via a sliding block (12) arranged at the bottom end.

4. A welding positioning device for an external heat sink of a transformer according to claim 1, Features: The fine adjustment mechanism (14) comprises a rectangular guide arm (7), a magnetic substrate (8), an electromagnetic block (10), an outer rectangular sleeve block (11) and a slide groove (16); the outer side of the rectangular guide arm (7) is connected to the outer side of the rectangular guide arm (7); the slide groove (16) is provided inside the rectangular guide arm (7); the outer rectangular sleeve block (11) is distributed in a rectangular shape on the outer side of the magnetic substrate (8); and the electromagnetic blocks (10) are arranged at equal intervals at the bottom end of the magnetic substrate (8).

5. A welding positioning device for an external heat sink of a transformer according to claim 4, Features: The rectangular guide arm (7) is connected to the interior of the outer rectangular sleeve block (11) via a sliding groove (16) provided at the inner end.

6. A welding positioning device for an external heat sink of a transformer according to claim 4, Features: The output end of the electric cylinder 1 (9) is connected directly above the magnetic attraction substrate (8).

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